CN106031886A - Neutral photocatalytic coating agent, preparation method and coating method thereof - Google Patents
Neutral photocatalytic coating agent, preparation method and coating method thereof Download PDFInfo
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- CN106031886A CN106031886A CN201510118543.8A CN201510118543A CN106031886A CN 106031886 A CN106031886 A CN 106031886A CN 201510118543 A CN201510118543 A CN 201510118543A CN 106031886 A CN106031886 A CN 106031886A
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- 239000011248 coating agent Substances 0.000 title claims abstract description 91
- 230000001699 photocatalysis Effects 0.000 title claims abstract description 86
- 230000007935 neutral effect Effects 0.000 title claims abstract description 53
- 238000000576 coating method Methods 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 74
- 150000003609 titanium compounds Chemical class 0.000 claims abstract description 53
- 239000011230 binding agent Substances 0.000 claims abstract description 39
- -1 gold ions Chemical class 0.000 claims abstract description 33
- 239000000203 mixture Substances 0.000 claims abstract description 26
- 229910021645 metal ion Inorganic materials 0.000 claims abstract description 16
- 239000008367 deionised water Substances 0.000 claims abstract description 11
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 5
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims abstract description 5
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910001430 chromium ion Inorganic materials 0.000 claims abstract description 5
- 229910001429 cobalt ion Inorganic materials 0.000 claims abstract description 5
- XLJKHNWPARRRJB-UHFFFAOYSA-N cobalt(2+) Chemical compound [Co+2] XLJKHNWPARRRJB-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910001431 copper ion Inorganic materials 0.000 claims abstract description 5
- 229910052737 gold Inorganic materials 0.000 claims abstract description 5
- 239000010931 gold Substances 0.000 claims abstract description 5
- 229910052741 iridium Inorganic materials 0.000 claims abstract description 5
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910001437 manganese ion Inorganic materials 0.000 claims abstract description 5
- 229910001453 nickel ion Inorganic materials 0.000 claims abstract description 5
- MUJIDPITZJWBSW-UHFFFAOYSA-N palladium(2+) Chemical compound [Pd+2] MUJIDPITZJWBSW-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052703 rhodium Inorganic materials 0.000 claims abstract description 5
- 239000010948 rhodium Substances 0.000 claims abstract description 5
- 229910001460 tantalum ion Inorganic materials 0.000 claims abstract description 5
- 229910001456 vanadium ion Inorganic materials 0.000 claims abstract description 5
- 238000007146 photocatalysis Methods 0.000 claims description 77
- 239000007864 aqueous solution Substances 0.000 claims description 35
- 239000002253 acid Substances 0.000 claims description 25
- 238000003756 stirring Methods 0.000 claims description 24
- 238000006555 catalytic reaction Methods 0.000 claims description 21
- 239000000725 suspension Substances 0.000 claims description 21
- 239000011941 photocatalyst Substances 0.000 claims description 20
- 239000000243 solution Substances 0.000 claims description 17
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 12
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 8
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 8
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 claims description 8
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 8
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten trioxide Chemical compound O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 claims description 8
- 238000010422 painting Methods 0.000 claims description 7
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 claims description 4
- OWEGMIWEEQEYGQ-UHFFFAOYSA-N 100676-05-9 Natural products OC1C(O)C(O)C(CO)OC1OCC1C(O)C(O)C(O)C(OC2C(OC(O)C(O)C2O)CO)O1 OWEGMIWEEQEYGQ-UHFFFAOYSA-N 0.000 claims description 4
- GUBGYTABKSRVRQ-XLOQQCSPSA-N Alpha-Lactose Chemical compound O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@H](O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-XLOQQCSPSA-N 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 4
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 4
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 4
- 229930091371 Fructose Natural products 0.000 claims description 4
- 239000005715 Fructose Substances 0.000 claims description 4
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 claims description 4
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 4
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 claims description 4
- GUBGYTABKSRVRQ-PICCSMPSSA-N Maltose Natural products O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@@H]1O[C@@H]1[C@@H](CO)OC(O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-PICCSMPSSA-N 0.000 claims description 4
- WAEMQWOKJMHJLA-UHFFFAOYSA-N Manganese(2+) Chemical compound [Mn+2] WAEMQWOKJMHJLA-UHFFFAOYSA-N 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 4
- 229920002472 Starch Polymers 0.000 claims description 4
- 229930006000 Sucrose Natural products 0.000 claims description 4
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 4
- 235000011054 acetic acid Nutrition 0.000 claims description 4
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 claims description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 4
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 claims description 4
- GUBGYTABKSRVRQ-QUYVBRFLSA-N beta-maltose Chemical compound OC[C@H]1O[C@H](O[C@H]2[C@H](O)[C@@H](O)[C@H](O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@@H]1O GUBGYTABKSRVRQ-QUYVBRFLSA-N 0.000 claims description 4
- CJOBVZJTOIVNNF-UHFFFAOYSA-N cadmium sulfide Chemical compound [Cd]=S CJOBVZJTOIVNNF-UHFFFAOYSA-N 0.000 claims description 4
- 229910052980 cadmium sulfide Inorganic materials 0.000 claims description 4
- 239000001913 cellulose Substances 0.000 claims description 4
- 229920002678 cellulose Polymers 0.000 claims description 4
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 4
- 235000015165 citric acid Nutrition 0.000 claims description 4
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 claims description 4
- KRFJLUBVMFXRPN-UHFFFAOYSA-N cuprous oxide Chemical compound [O-2].[Cu+].[Cu+] KRFJLUBVMFXRPN-UHFFFAOYSA-N 0.000 claims description 4
- 229940112669 cuprous oxide Drugs 0.000 claims description 4
- NMGYKLMMQCTUGI-UHFFFAOYSA-J diazanium;titanium(4+);hexafluoride Chemical compound [NH4+].[NH4+].[F-].[F-].[F-].[F-].[F-].[F-].[Ti+4] NMGYKLMMQCTUGI-UHFFFAOYSA-J 0.000 claims description 4
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 239000008103 glucose Substances 0.000 claims description 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 4
- YOBAEOGBNPPUQV-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe].[Fe] YOBAEOGBNPPUQV-UHFFFAOYSA-N 0.000 claims description 4
- 239000004310 lactic acid Substances 0.000 claims description 4
- 235000014655 lactic acid Nutrition 0.000 claims description 4
- 239000008101 lactose Substances 0.000 claims description 4
- CZMAIROVPAYCMU-UHFFFAOYSA-N lanthanum(3+) Chemical compound [La+3] CZMAIROVPAYCMU-UHFFFAOYSA-N 0.000 claims description 4
- 239000001630 malic acid Substances 0.000 claims description 4
- 235000011090 malic acid Nutrition 0.000 claims description 4
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Inorganic materials O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910017604 nitric acid Inorganic materials 0.000 claims description 4
- DCKVFVYPWDKYDN-UHFFFAOYSA-L oxygen(2-);titanium(4+);sulfate Chemical compound [O-2].[Ti+4].[O-]S([O-])(=O)=O DCKVFVYPWDKYDN-UHFFFAOYSA-L 0.000 claims description 4
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 4
- 235000011007 phosphoric acid Nutrition 0.000 claims description 4
- 229910052700 potassium Inorganic materials 0.000 claims description 4
- 239000011591 potassium Substances 0.000 claims description 4
- 235000019353 potassium silicate Nutrition 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 4
- 239000008107 starch Substances 0.000 claims description 4
- 235000019698 starch Nutrition 0.000 claims description 4
- 239000005720 sucrose Substances 0.000 claims description 4
- 239000001117 sulphuric acid Substances 0.000 claims description 4
- 235000011149 sulphuric acid Nutrition 0.000 claims description 4
- 239000012209 synthetic fiber Substances 0.000 claims description 4
- 229920002994 synthetic fiber Polymers 0.000 claims description 4
- 239000011975 tartaric acid Substances 0.000 claims description 4
- 235000002906 tartaric acid Nutrition 0.000 claims description 4
- 229940073455 tetraethylammonium hydroxide Drugs 0.000 claims description 4
- LRGJRHZIDJQFCL-UHFFFAOYSA-M tetraethylazanium;hydroxide Chemical compound [OH-].CC[N+](CC)(CC)CC LRGJRHZIDJQFCL-UHFFFAOYSA-M 0.000 claims description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 4
- 229910000349 titanium oxysulfate Inorganic materials 0.000 claims description 4
- 229910000348 titanium sulfate Inorganic materials 0.000 claims description 4
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 claims description 4
- XROWMBWRMNHXMF-UHFFFAOYSA-J titanium tetrafluoride Chemical compound [F-].[F-].[F-].[F-].[Ti+4] XROWMBWRMNHXMF-UHFFFAOYSA-J 0.000 claims description 4
- 238000009941 weaving Methods 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims description 3
- 229930002839 ionone Natural products 0.000 claims description 3
- 150000002499 ionone derivatives Chemical class 0.000 claims description 3
- 125000000864 peroxy group Chemical group O(O*)* 0.000 claims description 3
- 238000004528 spin coating Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 231100000252 nontoxic Toxicity 0.000 abstract description 4
- 230000003000 nontoxic effect Effects 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 abstract 1
- 229910052746 lanthanum Inorganic materials 0.000 abstract 1
- 230000009972 noncorrosive effect Effects 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 238000004500 asepsis Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- 150000004965 peroxy acids Chemical class 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Catalysts (AREA)
Abstract
This application discloses a neutral photocatalytic coating agent, a preparation method and a coating method thereof. The neutral photocatalytic coating agent comprises, by mass, 0.1-20 parts of a nanometer photocatalytic material, 0.01-2 parts of a binder, 0.01-3 parts of a water-soluble titanium compound, a pH value adjusting agent, and 100 parts of deionized water, wherein the pH value of the neutral photocatalytic coating agent can achieve 6-8 with the pH value adjusting agent, the neutral photocatalytic coating agent further contains 0.001-0.2 part by mass of meta ions, and the metal ions are one or a mixture comprising a plurality of materials selected from gold ions, silver ion, platinum ion, palladium ion, rhodium ion, iridium ion, copper ions, iron ions, cobalt ions, nickel ions, manganese ions, vanadium ions, chromium ions, tantalum ions, lanthanum ions and cerium ions according to any ratios. The neutral photocatalytic coating agent of the present invention is neutral, non-corrosive and non-toxic, and has characteristics of environment protection, simpleness, easy obtaining, high transparency, stable dispersing and suspending property, and has high photocatalytic performance.
Description
Technical field
The present invention relates to photocatalysis technology field, particularly relate to a kind of neutral coating agent of photocatalysis and preparation method thereof and painting method.
Background technology
Catalysis material is a kind of under the irradiation of light, self does not changes, but can promote the material of chemical reaction.The almost separable solution of catalysis material, to human body and all organic substances of bad environmental and part inorganic substances, plays the effect of the depollution of environment, and it can effectively utilize the sunlight of nature, does not cause waste and the formation of additional pollution of resource.Catalysis material to be made plays photocatalysis efficiency as far as possible, need to be prepared into nanoscale, and the catalysis material of nanoscale has big specific surface area, can adsorb more Organic substance, show higher photocatalysis efficiency.But, the catalysis material of nanoscale in use also exists some defects, as readily suspended in the catalysis material of nanoscale causes the particulate pollutant in air to increase in atmosphere, is unfavorable for that the mankind's is healthy；The catalysis material of nanoscale is not easy to recycling after use process, causes the waste of resource.
The catalysis material of nanoscale to be made full use of, a kind of effective manner be the catalysis material of nanoscale is made coating agent after and coated and be fixed on base material.Which can give full play to catalysis material photocatalysis efficiency on nanoscale, also can reduce the harm after nano-photocatalyst material suspends caused environment, the beneficially recycling of catalysis material simultaneously.Additionally, catalysis material coating is fixed in particular substrate material, moreover it is possible to make base material have self-cleaning advantage, the oils and fats of removable substrate material surface, mould, mycete, algae, antibacterial and virus etc..
At present, the coating agent of photocatalysis of exploitation excellent performance is paid close attention to widely by people.Excellent coating agent of photocatalysis must possess following advantages: (1) coating agent of photocatalysis has efficient photocatalytic activity, especially coating and is fixed on base material the photocatalysis performance still with excellence；(2) coating agent of photocatalysis can be adhesively fixed closely on multiple base material, difficult drop-off；(3) coating agent of photocatalysis itself has the higher transparency, disperse suspending stabilized, the coating being applicable to all kinds of base material uses, and is formed without speckle, in particular for coated glazings, windshield, has the base material of high light transmission for the these requirements such as operating theater instruments observed；(4) coating processes during coating agent of photocatalysis uses is simple, it is easy to scale uses；(5) coating agent of photocatalysis itself need to have environmental protection, nontoxic advantage etc..
Additionally, the coating agent of photocatalysis of excellence should also have neutrality.The most common coating agent of photocatalysis more or less present acidity or alkalescence, on the one hand cause the discharge of acidity or alkaline waste water, improve the cost of environmental protection；Base material, owing to having acidity or alkalescence, is in use easily caused corrosion failure by the product obtained by Ling Yifangmian.Therefore, it is badly in need of finding the coating agent of photocatalysis with excellent performance of a kind of neutrality.
Summary of the invention
In view of this, the application provides a kind of neutral coating agent of photocatalysis, this coating agent be neutrality, non-corrosiveness, asepsis environment-protecting, simple and easy to get, have the higher transparency, disperse suspending stabilized, photocatalysis performance is high, be prone to be tightly fastened on multiple base material.Present invention simultaneously provides preparation method and the painting method of this neutrality coating agent of photocatalysis a kind of.
The application provides a kind of neutral coating agent of photocatalysis, including: it is made up of the proportioning of following mass fraction, nano-photocatalyst material 0.1 to 20 part, binding agent 0.01 to 2 part, water-soluble titanium compound 0.01 to 3 part, pH value regulator and deionized water 100 parts；Described pH value regulator can make the pH value of described neutral coating agent of photocatalysis be 6 to 8.
Preferably, described neutral coating agent of photocatalysis also comprises the metal ion that mass fraction is 0.001 to 0.2 part；The described metal ion one or several arbitrary proportion mixture in gold ion, silver ion, platinum ion, palladium ion, rhodium ion, iridium ion, copper ion, iron ion, cobalt ion, nickel ion, manganese ion, vanadium ion, chromium ion, tantalum ion, lanthanum ion, cerium ion.
Preferably, the described nano-photocatalyst material one or several arbitrary proportion mixture in nano titanium oxide, nano zine oxide, nanometer iron sesquioxide, nano ferrous iron oxide, nano ferriferrous oxide, nano cuprous oxide, nano tin dioxide, nano zirconium dioxide, Nano cadmium sulphide, nano tungsten trioxide, nano-cerium oxide, nano-manganese dioxide.
Preferably, the described binding agent one or several arbitrary proportion mixture in fructose, glucose, sucrose, lactose, maltose, starch, cellulose, resin, waterglass.
Preferably, the described water-soluble titanium compound one or several arbitrary proportion mixture in metatitanic acid, metatitanic acid, titanous chloride., titanium tetrachloride, titanium tetrafluoride, titanium sulfate, titanyl sulfate, titanium peroxide, pertitanic acid, the titanium complex of peroxy, titanocenes, ammonium titanium fluoride, potassium fluotitanate.
Preferably, described pH value regulator is acid solution or aqueous slkali；The described acid solution one or several arbitrary proportion mixture in hydrochloric acid, nitric acid, acetic acid, phosphoric acid, sulphuric acid, lactic acid, citric acid, tartaric acid, malic acid；The described aqueous slkali one or several arbitrary proportion mixture in ammonia, sodium hydroxide, potassium hydroxide, Tetramethylammonium hydroxide, tetraethyl ammonium hydroxide, ethylenediamine, diethylamine, ethanolamine.
The application also provides for the preparation method of a kind of neutral coating agent of photocatalysis as above, including:
S1, being scattered in the described deionized water of 100 parts by the described water-soluble titanium compound of 0.01 to 3 part, stirring forms titanium compound aqueous solution；
S2, being joined by the described binding agent of 0.01 to 2 part in the described titanium compound aqueous solution that step S1 is made into, stirring forms the titanium compound aqueous solution containing binding agent；
S3, being joined by the described nano-photocatalyst material of 0.1 to 20 part in the titanium compound aqueous solution containing binding agent that step S2 is made into, stirring is mixed evenly, and obtains the suspension of titanium compound aqueous solution containing catalysis material and binding agent；
S4, described pH value regulator being joined in the suspension that step S3 is made into, make the pH value of suspension be adjusted to 6 to 8, the product obtained is described neutral coating agent of photocatalysis.
Preferably, in described step S3, during described stirring is mixed evenly, add the metal ion of 0.001 to 0.2 part.
The application also provides for the painting method of a kind of neutral coating agent of photocatalysis as above, including: use dipping, blade coating, spin coating, one or more of mode that spray or sputter at coating agent of photocatalysis described in the surface-coated of base material；Described base material includes one or more in body of wall, metope, floor, glass, metal, pottery, timber, naturally occurring or synthetic fiber and weaving thereof and supatex fabric.
Preferably, after the described neutral coating agent of photocatalysis of table coating to base material, described base material is carried out heat treated；Described heat treatment temperature is 200 degrees Celsius to 600 degrees Celsius；Heating treatment time is 1 hour to 24 hours.
It is an advantage of the current invention that:
1. the described coating agent of photocatalysis that the application provides, in neutral, non-corrosiveness, can be applicable to all kinds of base material.
2. the photocatalysis performance with excellence is fixed on base material in the described coating agent of photocatalysis coating that the application provides.
3. the described coating agent of photocatalysis that the application provides can be adhesively fixed closely on multiple base material, difficult drop-off.
4. the described coating agent of photocatalysis itself that the application provides has the higher transparency, disperses suspending stabilized.
5. the application provides the synthesis of described coating agent of photocatalysis and coating processes are simple, it is easy to large-scale production and use.
6. the described coating agent of photocatalysis itself that the application provides need to have environmental protection, nontoxic advantage.
Detailed description of the invention
For the technical scheme making those skilled in the art be more fully understood that in the application, technical scheme in the embodiment of the present application will be clearly and completely described below, obviously, described embodiment is only some embodiments of the present application rather than whole embodiments.Based on the embodiment in the application, the every other embodiment that those of ordinary skill in the art are obtained on the premise of not making creative work, all should belong to the scope of protection of the invention.
The application one embodiment provides a kind of neutral coating agent of photocatalysis, it includes: be made up of the proportioning of following mass fraction, nano-photocatalyst material 0.1 to 20 part, binding agent 0.01 to 2 part, water-soluble titanium compound 0.01 to 3 part, pH value regulator and deionized water 100 parts；Described pH value regulator can make the pH value of described neutral coating agent of photocatalysis be 6 to 8..
When configuring described neutral coating agent of photocatalysis, described nano-photocatalyst, described binding agent, described water-soluble titanium compound by mass fraction in adding procedure, in wherein said nano-photocatalyst, described binding agent, described water-soluble titanium compound three, the addition of any component increases, other components can also increase accordingly, to obtain the described coating agent of photocatalysis preferably coating effect.Such as: described nano-photocatalyst with its lower limit amount as addition, corresponding described binding agent and described water-soluble titanium compound can also be with the lower limit amount of self as addition.The addition of described pH value regulator can make described neutral coating agent of photocatalysis be neutrality after interpolation, and the pH value i.e. making described neutral coating agent of photocatalysis is 6 to 8.
Described nano-photocatalyst material can be selected from one or several the arbitrary proportion mixture in nano titanium oxide, nano zine oxide, nanometer iron sesquioxide, nano ferrous iron oxide, nano ferriferrous oxide, nano cuprous oxide, nano tin dioxide, nano zirconium dioxide, Nano cadmium sulphide, nano tungsten trioxide, nano-cerium oxide, nano-manganese dioxide.
Described binding agent can be selected from one or several the arbitrary proportion mixture in fructose, glucose, sucrose, lactose, maltose, starch, cellulose, resin, waterglass.
Described water-soluble titanium compound can be selected from one or several the arbitrary proportion mixture in metatitanic acid, metatitanic acid, titanous chloride., titanium tetrachloride, titanium tetrafluoride, titanium sulfate, titanyl sulfate, titanium peroxide, pertitanic acid, the titanium complex of peroxy, titanocenes, ammonium titanium fluoride, potassium fluotitanate.
Described pH value regulator can be acid solution or aqueous slkali.The described acid solution one or several arbitrary proportion mixture in hydrochloric acid, nitric acid, acetic acid, phosphoric acid, sulphuric acid, lactic acid, citric acid, tartaric acid, malic acid.；The described aqueous slkali one or several arbitrary proportion mixture in ammonia, sodium hydroxide, potassium hydroxide, Tetramethylammonium hydroxide, tetraethyl ammonium hydroxide, ethylenediamine, diethylamine, ethanolamine.
Concrete, generally use in the way of solution in view of pH value regulator and described acid solution and aqueous slkali are generally demarcated with concentration, consider based on this kind, the mass fraction of described pH value regulator can be acid solution or the addition of aqueous slkali of variable concentrations, such as: described acid solutions can be 1 mole every liter, described alkaline concentration can be 1 mole every liter, and the mass fraction of described pH value regulator is described acid solution or the quality of aqueous slkali adding 1 mole every liter.Meanwhile, described pH value regulator can also use solid peracid or solid base, and the application is not limited thereto.
Further, described pH value regulator can the pH value of solution during neutral coating agent of photocatalysis described in regulating allocation, when described pH value regulator selects acid solution or aqueous slkali can be equipped with according to reality, before adding pH value regulator, the pH of solution is acid or alkaline, and then selects targetedly to add described pH value regulator.
It is an advantage of the current invention that: 1. the described neutral coating agent of photocatalysis that present embodiment provides, in neutral, non-corrosiveness, can be applicable to all kinds of base material.2. the photocatalysis performance with excellence is fixed on base material in the described neutral coating agent of photocatalysis coating that present embodiment provides.3. the described neutral coating agent of photocatalysis that present embodiment provides can be adhesively fixed closely on multiple base material, difficult drop-off.4. the described neutral coating agent of photocatalysis itself that present embodiment provides has the higher transparency, disperses suspending stabilized.5. present embodiment provides described neutral coating agent of photocatalysis synthesis and coating processes are simple, it is easy to large-scale production and use.6. the described neutral coating agent of photocatalysis itself that present embodiment provides need to have environmental protection, nontoxic advantage.
In one preferably embodiment, through inventor's lot of experiments, in described neutral coating agent of photocatalysis, add described metal ion can improve the photocatalysis efficiency of photocatalyst largely, it is possible to obtain the catalytic efficiency of visible ray, there is preferable practical application effect.
Concrete, described neutral coating agent of photocatalysis can also comprise the metal ion that mass fraction is 0.001 to 0.2 part simultaneously；The described metal ion one or several arbitrary proportion mixture in gold ion, silver ion, platinum ion, palladium ion, rhodium ion, iridium ion, copper ion, iron ion, cobalt ion, nickel ion, manganese ion, vanadium ion, chromium ion, tantalum ion, lanthanum ion, cerium ion.Generally exist in the way of slaine in view of described metal ion, and then in actual applications, the mass fraction of described metal ion can be the mass fraction of slaine.
A kind of embodiment of the application also provides for the preparation method of a kind of neutral coating agent of photocatalysis as above, and it comprises the following steps:
S1, being scattered in the described deionized water of 100 parts by the described water-soluble titanium compound of 0.01 to 3 part, stirring forms titanium compound aqueous solution；
S2, being joined by the described binding agent of 0.01 to 2 part in the described titanium compound aqueous solution that step S1 is made into, stirring forms the titanium compound aqueous solution containing binding agent；
S3, being joined by the described nano-photocatalyst material of 0.1 to 20 part in the titanium compound aqueous solution containing binding agent that step S2 is made into, stirring is mixed evenly, and obtains the suspension of titanium compound aqueous solution containing catalysis material and binding agent；
S4, described pH value regulator being joined in the suspension that step S3 is made into, make the pH value of suspension be adjusted to 6 to 8, the product obtained is described neutral coating agent of photocatalysis.
In one preferably embodiment, in described step S3, the metal ion of 0.001 to 0.2 part can be added during described stirring is mixed evenly.
The application also provides for the painting method of a kind of neutral coating agent of photocatalysis as above, including: use dipping, blade coating, spin coating, one or more of mode that spray or sputter at coating agent of photocatalysis described in the surface-coated of base material；Described base material includes one or more in body of wall, metope, floor, glass, metal, pottery, timber, naturally occurring or synthetic fiber and weaving thereof and supatex fabric.
After the described neutral coating agent of photocatalysis of table coating to base material, described base material is carried out heat treated；Described heat treatment temperature is 200 degrees Celsius to 600 degrees Celsius；Heating treatment time is 1 hour to 24 hours.Concrete, described heating treatment time suitably can shorten along with the increase of described heat treatment temperature, and such as when with 200 degrees Celsius for described heat treatment temperature, described heating treatment time can be 24 hours.
The present patent application principle is specifically described below in conjunction with multiple embodiments.
The nano-photocatalyst material used one or several arbitrary proportion mixture in nano titanium oxide, nano zine oxide, nanometer iron sesquioxide, nano ferrous iron oxide, nano ferriferrous oxide, nano cuprous oxide, nano tin dioxide, nano zirconium dioxide, Nano cadmium sulphide, nano tungsten trioxide, nano-cerium oxide, nano-manganese dioxide in following embodiment.The binding agent used one or several arbitrary proportion mixture in fructose, glucose, sucrose, lactose, maltose, starch, cellulose, resin, waterglass.The water-soluble titanium compound used one or several arbitrary proportion mixture in metatitanic acid, metatitanic acid, titanous chloride., titanium tetrachloride, titanium tetrafluoride, titanium sulfate, titanyl sulfate, titanium peroxide, titanocenes, ammonium titanium fluoride, potassium fluotitanate.PH value regulator used includes acid solution or the aqueous slkali of 1 mole every liter, the described acid solution one or several arbitrary proportion mixture in hydrochloric acid, nitric acid, acetic acid, phosphoric acid, sulphuric acid, lactic acid, citric acid, tartaric acid, malic acid.The described aqueous slkali one or several arbitrary proportion mixture in ammonia, sodium hydroxide, potassium hydroxide, Tetramethylammonium hydroxide, tetraethyl ammonium hydroxide, ethylenediamine, diethylamine, ethanolamine.The metal ion used one or several arbitrary proportion mixture in gold ion, silver ion, platinum ion, palladium ion, rhodium ion, iridium ion, copper ion, iron ion, cobalt ion, nickel ion, manganese ion, vanadium ion, chromium ion, tantalum ion, lanthanum ion, cerium ion.The base material used one or several arbitrary proportion mixture in body of wall, metope, floor, glass, metal, pottery, timber, naturally occurring or synthetic fiber and weaving thereof and supatex fabric.
Embodiment 1
Taking 3 grams of water-soluble titanium compounds, be scattered in the deionized water of 100 grams in the case of being stirred vigorously, continuing vigorous stirring is until forming titanium compound aqueous solution；Subsequently, adding 2 grams of binding agents in the case of being stirred vigorously in above-mentioned titanium compound aqueous solution, continuing vigorous stirring is until forming the titanium compound aqueous solution containing binding agent；Subsequently, in the case of being stirred vigorously, adding 20 grams of nano-photocatalyst materials in the titanium compound aqueous solution containing binding agent slowly, continuing vigorous stirs 2 hours, obtains the suspension of titanium compound aqueous solution containing catalysis material and binding agent；Subsequently, in the case of being stirred vigorously, being slowly added pH value regulator in above-mentioned suspension, make the pH value of suspension be adjusted to 6, the product obtained is described neutral coating agent of photocatalysis.
Embodiment 2
Taking 1 gram of water-soluble titanium compound, be scattered in the deionized water of 100 grams in the case of being stirred vigorously, continuing vigorous stirring is until forming titanium compound aqueous solution；Subsequently, adding 1 gram of binding agent in the case of being stirred vigorously in above-mentioned titanium compound aqueous solution, continuing vigorous stirring is until forming the titanium compound aqueous solution containing binding agent；Subsequently, in the case of being stirred vigorously, adding 10 grams of nano-photocatalyst materials in the titanium compound aqueous solution containing binding agent slowly, continuing vigorous stirs 2 hours, obtains the suspension of titanium compound aqueous solution containing catalysis material and binding agent；Subsequently, in the case of being stirred vigorously, being slowly added pH value regulator in above-mentioned suspension, make the pH value of suspension be adjusted to 8, the product obtained is described neutral coating agent of photocatalysis.
Embodiment 3
Taking 0.01 gram of water-soluble titanium compound, be scattered in the deionized water of 100 grams in the case of being stirred vigorously, continuing vigorous stirring is until forming titanium compound aqueous solution；Subsequently, adding 0.01 gram of binding agent in the case of being stirred vigorously in above-mentioned titanium compound aqueous solution, continuing vigorous stirring is until forming the titanium compound aqueous solution containing binding agent；Subsequently, in the case of being stirred vigorously, adding 0.2 gram of nano-photocatalyst material in the titanium compound aqueous solution containing binding agent slowly, continuing vigorous stirs 2 hours, obtains the suspension of titanium compound aqueous solution containing catalysis material and binding agent；Subsequently, in the case of being stirred vigorously, being slowly added pH value regulator in above-mentioned suspension, make the pH value of suspension be adjusted to 7, the product obtained is described neutral coating agent of photocatalysis.
Embodiment 4
Taking 0.5 gram of water-soluble titanium compound, be scattered in the deionized water of 100 grams in the case of being stirred vigorously, continuing vigorous stirring is until forming titanium compound aqueous solution；Subsequently, adding 0.5 gram of binding agent in the case of being stirred vigorously in above-mentioned titanium compound aqueous solution, continuing vigorous stirring is until forming the titanium compound aqueous solution containing binding agent；Subsequently, in the case of being stirred vigorously, the metal ion salt compound of 5 grams of nano-photocatalyst materials and 0.02 gram is added slowly in the titanium compound aqueous solution containing binding agent, continuing vigorous stirs 2 hours, obtains the suspension of titanium compound aqueous solution containing catalysis material, binding agent and metal ion；Subsequently, in the case of being stirred vigorously, being slowly added pH value regulator in above-mentioned suspension, make the pH value of suspension be adjusted to 6.8, the product obtained is described neutral coating agent of photocatalysis.
Embodiment 5
Arbitrary coating agent of photocatalysis in Example 1 to embodiment 4, is sprayed at substrate material surface and forms thin layer, put into after drying in baking oven, in 250 degrees Celsius of lower heat treated 20 hours, i.e. obtains coating the base material of catalysis material.
Embodiment 6
Arbitrary coating agent of photocatalysis in Example 1 to embodiment 4, is sprayed at substrate material surface and forms thin layer, put into after drying in Muffle furnace, in 500 degrees Celsius of lower heat treated 2 hours, i.e. obtains coating the base material of catalysis material.
Embodiment 7
Arbitrary coating agent of photocatalysis in Example 1 to embodiment 4, is sprayed at substrate material surface and forms thin layer, put into after drying in Muffle furnace, in 400 degrees Celsius of lower heat treated 10 hours, i.e. obtains coating the base material of photocatalyst.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; the principle that the present invention is simply described described in above-described embodiment and description; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements both fall within the scope of protection of present invention.Claimed scope is defined by appending claims and equivalent thereof.
Claims (10)
1. a neutral coating agent of photocatalysis, it is characterised in that including: be made up of the proportioning of following mass fraction, nano-photocatalyst material 0.1 to 20 part, binding agent 0.01 to 2 part, water-soluble titanium compound 0.01 to 3 part, pH value regulator and deionized water 100 parts；Described pH value regulator can make the pH value of described neutral coating agent of photocatalysis be 6 to 8.
2. neutral coating agent of photocatalysis as claimed in claim 1, it is characterised in that: described neutral coating agent of photocatalysis also comprises the metal ion that mass fraction is 0.001 to 0.2 part；The described metal ion one or several arbitrary proportion mixture in gold ion, silver ion, platinum ion, palladium ion, rhodium ion, iridium ion, copper ion, iron ion, cobalt ion, nickel ion, manganese ion, vanadium ion, chromium ion, tantalum ion, lanthanum ion, cerium ion.
3. neutral coating agent of photocatalysis as claimed in claim 1, it is characterised in that: the described nano-photocatalyst material one or several arbitrary proportion mixture in nano titanium oxide, nano zine oxide, nanometer iron sesquioxide, nano ferrous iron oxide, nano ferriferrous oxide, nano cuprous oxide, nano tin dioxide, nano zirconium dioxide, Nano cadmium sulphide, nano tungsten trioxide, nano-cerium oxide, nano-manganese dioxide.
4. neutral coating agent of photocatalysis as claimed in claim 1, it is characterised in that: the described binding agent one or several arbitrary proportion mixture in fructose, glucose, sucrose, lactose, maltose, starch, cellulose, resin, waterglass.
5. neutral coating agent of photocatalysis as claimed in claim 1, it is characterised in that: the described water-soluble titanium compound one or several arbitrary proportion mixture in metatitanic acid, metatitanic acid, titanous chloride., titanium tetrachloride, titanium tetrafluoride, titanium sulfate, titanyl sulfate, titanium peroxide, pertitanic acid, the titanium complex of peroxy, titanocenes, ammonium titanium fluoride, potassium fluotitanate.
6. neutral coating agent of photocatalysis as claimed in claim 1, it is characterised in that: described pH value regulator is acid solution or aqueous slkali；The described acid solution one or several arbitrary proportion mixture in hydrochloric acid, nitric acid, acetic acid, phosphoric acid, sulphuric acid, lactic acid, citric acid, tartaric acid, malic acid；The described aqueous slkali one or several arbitrary proportion mixture in ammonia, sodium hydroxide, potassium hydroxide, Tetramethylammonium hydroxide, tetraethyl ammonium hydroxide, ethylenediamine, diethylamine, ethanolamine.
7. the preparation method of a neutral coating agent of photocatalysis as claimed in claim 1, it is characterised in that including:
S1, being scattered in the described deionized water of 100 parts by the described water-soluble titanium compound of 0.01 to 3 part, stirring forms titanium compound aqueous solution；
S2, being joined by the described binding agent of 0.01 to 2 part in the described titanium compound aqueous solution that step S1 is made into, stirring forms the titanium compound aqueous solution containing binding agent；
S3, being joined by the described nano-photocatalyst material of 0.1 to 20 part in the titanium compound aqueous solution containing binding agent that step S2 is made into, stirring is mixed evenly, and obtains the suspension of titanium compound aqueous solution containing catalysis material and binding agent；
S4, described pH value regulator being joined in the suspension that step S3 is made into, make the pH value of suspension be adjusted to 6 to 8, the product obtained is described neutral coating agent of photocatalysis.
8. preparation method as claimed in claim 7, it is characterised in that: in described step S3, during described stirring is mixed evenly, add the metal ion of 0.001 to 0.2 part.
9. the painting method of a neutral coating agent of photocatalysis as claimed in claim 1, it is characterised in that including: use dipping, blade coating, spin coating, one or more of mode that spray or sputter at coating agent of photocatalysis described in the surface-coated of base material；Described base material includes one or more in body of wall, metope, floor, glass, metal, pottery, timber, naturally occurring or synthetic fiber and weaving thereof and supatex fabric.
10. painting method as claimed in claim 9, it is characterised in that: after the described neutral coating agent of photocatalysis of table coating to base material, described base material is carried out heat treated；Described heat treatment temperature is 200 degrees Celsius to 600 degrees Celsius；Heating treatment time is 1 hour to 24 hours.
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