CN109011920A - A kind of antibacterial air-filtering membrane - Google Patents
A kind of antibacterial air-filtering membrane Download PDFInfo
- Publication number
- CN109011920A CN109011920A CN201810978381.9A CN201810978381A CN109011920A CN 109011920 A CN109011920 A CN 109011920A CN 201810978381 A CN201810978381 A CN 201810978381A CN 109011920 A CN109011920 A CN 109011920A
- Authority
- CN
- China
- Prior art keywords
- tio
- powder
- filtering membrane
- antibacterial
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 77
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 50
- 238000001914 filtration Methods 0.000 title claims abstract description 42
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 59
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 30
- 229910001845 yogo sapphire Inorganic materials 0.000 claims abstract description 30
- 238000001179 sorption measurement Methods 0.000 claims abstract description 23
- 238000009987 spinning Methods 0.000 claims abstract description 22
- 230000003115 biocidal effect Effects 0.000 claims abstract description 14
- 239000004695 Polyether sulfone Substances 0.000 claims abstract description 11
- 229920006393 polyether sulfone Polymers 0.000 claims abstract description 11
- 235000012489 doughnuts Nutrition 0.000 claims abstract description 8
- 238000009941 weaving Methods 0.000 claims abstract description 4
- 239000000243 solution Substances 0.000 claims description 54
- 239000000843 powder Substances 0.000 claims description 43
- 229920001661 Chitosan Polymers 0.000 claims description 26
- 150000001875 compounds Chemical class 0.000 claims description 25
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 24
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 20
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 18
- 238000002360 preparation method Methods 0.000 claims description 17
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 14
- 239000000835 fiber Substances 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 14
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 12
- 239000000725 suspension Substances 0.000 claims description 12
- 239000002253 acid Substances 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 8
- 229960000583 acetic acid Drugs 0.000 claims description 8
- 230000032683 aging Effects 0.000 claims description 8
- 239000011521 glass Substances 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
- 238000011068 loading method Methods 0.000 claims description 8
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 6
- 235000019253 formic acid Nutrition 0.000 claims description 6
- FDWREHZXQUYJFJ-UHFFFAOYSA-M gold monochloride Chemical compound [Cl-].[Au+] FDWREHZXQUYJFJ-UHFFFAOYSA-M 0.000 claims description 6
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims description 5
- 230000008676 import Effects 0.000 claims description 5
- 150000007524 organic acids Chemical class 0.000 claims description 5
- SJUCACGNNJFHLB-UHFFFAOYSA-N O=C1N[ClH](=O)NC2=C1NC(=O)N2 Chemical compound O=C1N[ClH](=O)NC2=C1NC(=O)N2 SJUCACGNNJFHLB-UHFFFAOYSA-N 0.000 claims description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 4
- 238000001354 calcination Methods 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 239000012362 glacial acetic acid Substances 0.000 claims description 4
- 239000008236 heating water Substances 0.000 claims description 4
- 239000004310 lactic acid Substances 0.000 claims description 4
- 235000014655 lactic acid Nutrition 0.000 claims description 4
- 150000007522 mineralic acids Chemical class 0.000 claims description 4
- 239000011259 mixed solution Substances 0.000 claims description 4
- 238000010345 tape casting Methods 0.000 claims description 4
- 238000002604 ultrasonography Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- -1 Ether sulfone Chemical class 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 235000011054 acetic acid Nutrition 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims 1
- 238000001291 vacuum drying Methods 0.000 claims 1
- 230000000845 anti-microbial effect Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- ZWYDDDAMNQQZHD-UHFFFAOYSA-L titanium(ii) chloride Chemical compound [Cl-].[Cl-].[Ti+2] ZWYDDDAMNQQZHD-UHFFFAOYSA-L 0.000 abstract description 2
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 description 7
- 241000894006 Bacteria Species 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 229910017604 nitric acid Inorganic materials 0.000 description 3
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical class [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 description 2
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical compound [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 2
- 230000002421 anti-septic effect Effects 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 150000003457 sulfones Chemical class 0.000 description 2
- 241000252212 Danio rerio Species 0.000 description 1
- 206010029350 Neurotoxicity Diseases 0.000 description 1
- 206010044221 Toxic encephalopathy Diseases 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005713 exacerbation Effects 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 210000001161 mammalian embryo Anatomy 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 230000007135 neurotoxicity Effects 0.000 description 1
- 231100000228 neurotoxicity Toxicity 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/54—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
- B01D46/543—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using membranes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention discloses a kind of antibacterial air-filtering membranes, it is related to air filting material technical field, the antibacterial air-filtering membrane includes the second adsorption layer, antibiotic layer and first adsorption layer from the inside to the outside, second adsorption layer be two-component doughnut be formed by weaving without spinning membrane filter, the antibiotic layer is compounded in the outer surface of the second adsorption layer, and the antibiotic layer is loaded nano Au-Al2O3/TiO2Film, the first adsorption layer are compounded in the outer surface of antibiotic layer, and the first adsorption layer is polyethersulfone membranes.The object of the present invention is to provide a kind of antibacterial air-filtering membranes, together by nanogold, aluminium oxide, titanium dichloride load, to solve the problems, such as that existing air-filtering membrane antibacterial action is weak, antibacterial range is narrow, and it prepares antimicrobial filtering film and is not easy aliquation in use, be tightly combined between each layer.
Description
Technical field
The present invention relates to air filting material technical fields, and in particular to a kind of antibacterial air-filtering membrane.
Background technique
In recent years, with the exacerbation of environmental pollution, the pollutant loads such as dust in air are also being continuously increased, serious to endanger
Victimize health, hence it is imperative that a kind of easy to use, the filter membrane with significant detergent power and bactericidal property
Product.
Currently, having been reported by adding nano silver on glass fibre air filter paper surface to assign glass fibre mistake
Filter paper is with anti-microbial property, but nano silver is in granular form, and can only often be gathered in the privileged site of filter paper, can not be evenly distributed on
Surface, to influence the antibacterial effect of filter paper, and nano silver can not combine closely with glass fibre, in use
It is easy to fall off, to influence the service life of filter paper.On the other hand, now it has been reported that nano silver and silver ion have
Potential bio-toxicity effect, shows breathing toxicity and neurotoxicity, is exposed to nano silver and silver ion to zebrafish embryo
After show the death rate increase with hatching rate reduce, and have delay hatch the phenomenon that.And now studying have it is antibacterial,
Although the nanogold of antibacterial, gold ion do not have trophism to human body, it can be smoothly discharged in vitro, not generate toxic side effect,
So be good antibacterial agent, but its to be carried on difficulty on filter membrane larger.
Semiconductor material nano-TiO with photo-catalysis function2Not only active height, antibacterial speed are fast, thermal stability
Good, the advantages that price is low and nontoxic to the human body, and can task decomposition granularity, there is purification, from knot, deodorization and drive away NOxEqual function
Can, thus become a kind of inorganic antiseptic of greatest concern, but single use nano-TiO2It is still deposited as inorganic antiseptic
In some problems, do not have that property is killed in selection to bacterium and antibacterial action is still weaker etc., makes it in application field by one
Fixed limitation.And aluminium ion to bacterium, mould have good bacteria removing effect, by aluminium ion and titanium dioxide it is compound after have compared with
Wide bactericidal range.
Therefore, a kind of antibacterial air-filtering membrane that antibacterial action is strong is developed to have a very important significance.
Summary of the invention
In view of the above shortcomings of the prior art, the object of the present invention is to provide a kind of antibacterial air-filtering membranes, will receive
Together, to solve, existing air-filtering membrane antibacterial action is weak, antibacterial range is narrow for meter Jin, aluminium oxide, titanium dichloride load
Problem, and prepare antimicrobial filtering film and be not easy aliquation in use, it is tightly combined between each layer.
To achieve the goals above, present invention employs following technical solutions:
A kind of antibacterial air-filtering membrane, the antibacterial air-filtering membrane include from the inside to the outside the second adsorption layer, antibiotic layer and
First adsorption layer, second adsorption layer be two-component doughnut be formed by weaving without spinning membrane filter, the antibiotic layer is compounded in
The outer surface of second adsorption layer, the antibiotic layer are loaded nano Au-Al2O3/TiO2Film, the first adsorption layer are compounded in
The outer surface of antibiotic layer, the first adsorption layer are polyethersulfone membranes.
Further, the no spinning membrane filter is with two-component doughnut knot made of ptt fiber and PET fiber Compound spinning
Structure.
Further, the supported nano-Au-Al2O3/TiO2The raw material for preparing of film includes: aluminium oxide, gold chloride, metatitanic acid
Butyl ester, chitosan, methanol, acid solution.
Further, a kind of antibacterial air-filtering membrane the preparation method is as follows:
No spinning membrane filter one end is imported on the third heating roller of compound film device, and is compressed with pressure roller, 160-200 is passed through
DEG C circulating air；By supported nano-Au-Al2O3/TiO2Film one end imports on the second roller of compound film device, and with pressure roller pressure
Tightly；Polyethersulfone membranes one end is imported on the first heating roller of compound film device, is passed through 120-150 DEG C of circulating air, and with pressure
Roll-in is tight；Compound film device is opened, linear velocity and tension value are set, it will be without spinning membrane filter, supported nano-Au-Al2O3/TiO2Film,
Polyethersulfone membranes draw simultaneously it is compound to carrying out on composite roll, it is compound after with traction roller to front haulage, obtain filter membrane blank；It will
Filter membrane blank flash severing, obtains antibacterial air-filtering membrane.
Further, in the antibacterial air-filtering membrane preparation, the linear velocity set is as 0.1~0.2m/min, tension value
10~15N.
Further, the supported nano-Au-Al2O3/TiO2Film is prepared using following method:
(1) chitosan is added into the acid solution of pH=1-5, obtains chitosan solution；Wherein, the chitosan and acid are molten
The mass volume ratio of liquid is 1~3g:100mL；
(2) 100gAu-Al is weighed2O3/TiO2Powder is placed in load ware, will be obtained in step (1) using liquid-transfering gun
Chitosan solution is all added in load wares, and ultrasound 30min after dropwise addition is placed in air aging for 24 hours；Later by obtained powder
End is placed under air atmosphere, is heated to 350 DEG C with the heating rate of 5 DEG C/min, that is, is obtained the Au-Al of loading chitosan2O3/
TiO2Powder, it is spare；
(3) Au-Al of the loading chitosan of step (2) preparation is weighed2O3/TiO2Powder 10g is placed in test tube, side stirring
While methanol solution is added into test tube, and ultrasonic wave disperses, and obtains suspension；
(4) above-mentioned suspension flow is extended down on glass dish using the tape casting, after glass dish is placed in 80 DEG C of vacuum
Constant temperature 3h is under baking oven to get Au-Al2O3/TiO2Film.
Further, acid solution described in step (1) is organic acid soln and/or inorganic acid solution, and the organic acid includes
Acetic acid, formic acid, lactic acid, the inorganic acid include hydrochloric acid, nitric acid or phosphoric acid.
Further, the Au-Al2O3/TiO2The preparation step of powder is as follows:
It weighs butyl titanate to be slowly dropped in ethanol solution, after magnetic stirrer 10-12min, obtain
Yellow clear solution, and the mixed solution of glacial acetic acid and ethanol solution is added in yellow clear solution, pH=3 is adjusted, in
Au-Al is added after 40 DEG C of heating water bath stirring 30min2O3Powder, continues to stir 1-2h to gel, after standing aging 12h, in
Freeze-day with constant temperature 10h at 150 DEG C, calcining 2.5-3h obtains Au-Al at 500 DEG C2O3/TiO2Powder.
Further, the Au-Al2O3The preparation step of powder is as follows:
It weighs gold chloride to be dissolved in deionized water, chlorauric acid solution is prepared, add alumina powder and surpassed
Sound wave dispersion, dispersion form the ethanol solution of addition 65-70wt% after suspension, carry out ultrasonic wave and are stirred and heated to 80-90
DEG C, Au-Al is obtained after reacting 0.5-2h2O3Powder.
Compared with prior art, the invention has the following beneficial effects:
1, the present invention is with chitosan loaded in nanometer Au-Al2O3/TiO2Antibiotic layer is prepared on film, mainly utilizes chitosan
With strong adsorptivity, microbial bacterial can be adsorbed, simultaneously because there are a large amount of free ammonias in chitosan molecule structure, it can
With Au-Al2O3/TiO2Powder forms stable chelate, and the Au-Al as carrier2O3/TiO2Powder is because under light illumination may be used
To generate electron-hole pair, absorption is dissolved in Au-Al2O3/TiO2The oxygen acquisition on surface is electronically generated superoxides, superoxides
It can be reacted with the organic matter in bacterium, and then play the purpose of sterilization, antibacterial, the suction-operated of chitosan can promote carrier
Au-Al2O3/TiO2The sterilization of powder, antibacterial action, so that the supported nano-Au-Al of preparation2O3/TiO2Film is as antibiotic layer
When antimicrobial efficiency it is higher, the final antibacterial action for improving antibacterial air-filtering membrane.
2, antibacterial air-filtering membrane of the present invention is designed to three-layer composite structure, and the purpose designed in this way is so that filtering
Film can accommodate, adsorb more substances to be adsorbed, to improve the working efficiency of filter membrane.Wherein, biggish in air
Grain is first filtered out by first adsorption layer, and the substance not filtered out passes through antibiotic layer, passes through supported nano-Au-Al2O3/TiO2Film
Bacterium is killed, the second adsorption layer makees further absorption to the particulate matter in air, not only kills bacterium but also energy to reach
Achieve the effect that filter out particle in air.
3, first adsorption layer of the invention uses supported nano-Au-Al using polyethersulfone membranes, antibiotic layer2O3/TiO2
Film, the second adsorption layer using two-component doughnut be formed by weaving without spinning membrane filter, in recombination process, the first heating roller heating
To 120-150 DEG C, the second roller is not heated, and third roller is heated to 160-200 DEG C, and the film of first adsorption layer and the second adsorption layer is added
Three layers are closely combined with each other, it is not easy to which aliquation achievees the purpose that multiple filtration by heat to micro- molten state using hot melt.
Specific embodiment
Below with reference to specific embodiment, the present invention is described in detail:
Embodiment 1: supported nano-Au-Al2O3/TiO2Film preparation one
Supported nano-Au-Al manufactured in the present embodiment2O3/TiO2Film should first prepare Au-Al first2O3/TiO2Powder,
Preparation step is as follows:
It weighs 20g gold chloride to be dissolved in 2L deionized water, chlorauric acid solution is prepared, add 30g alumina powder
End carries out ultrasonic wave and disperses 10min, and dispersion forms the ethanol solution of addition 65wt% after suspension, carries out ultrasonic wave stirring and adds
Heat obtains Au-Al after reacting 2h to 80 DEG C2O3Powder；
It weighs 100ml butyl titanate to be slowly dropped in 200ml ethanol solution, with magnetic stirrer 12min
Afterwards, yellow clear solution is obtained, and the mixed solution of 150ml glacial acetic acid and 10ml ethanol solution is added to yellow clear solution
In, pH=3 is adjusted with hydrochloric acid, Au-Al is added after 40 DEG C of heating water baths stir 30min2O3Powder continues to stir 1h to gel
Shape, after standing aging 12h, the freeze-day with constant temperature 10h at 150 DEG C, calcining 2.5h obtains Au-Al at 500 DEG C2O3/TiO2Powder.
It prepares according to the method described above and completes Au-Al2O3/TiO2After powder, supported nano-Au-Al is carried out2O3/TiO2Film system
Standby, steps are as follows:
(1) 30g chitosan is added into the 3000ml inorganic acid salt acid solution of pH=1, obtains chitosan solution；Wherein,
The mass volume ratio of chitosan and hydrochloric acid solution is 1~3g:100mL；
(2) 100g Au-Al is weighed2O3/TiO2Powder is placed in load ware, will be obtained in step (1) using liquid-transfering gun
Chitosan solution is all added in load wares, and ultrasound 30min after dropwise addition is placed in air aging for 24 hours；Later by obtained powder
End is placed under air atmosphere, is heated to 350 DEG C with the heating rate of 5 DEG C/min, that is, is obtained the Au-Al of loading chitosan2O3/
TiO2Powder, it is spare；
(3) Au-Al of the loading chitosan of step (2) preparation is weighed2O3/TiO2Powder 10g is placed in test tube, side stirring
While methanol solution is added into test tube, and ultrasonic wave disperses, and obtains 65wt% suspension；
(4) above-mentioned suspension flow is extended down on glass dish using the tape casting, after glass dish is placed in 80 DEG C of vacuum
Constant temperature 3h is under baking oven to get Au-Al2O3/TiO2Film.
Wherein, the hydrochloric acid solution used in step (1) can also choose one of acetic acid, formic acid, lactic acid, nitric acid or phosphoric acid
Or it is a variety of.
Embodiment 2: supported nano-Au-Al2O3/TiO2Film preparation two
Supported nano-Au-Al manufactured in the present embodiment2O3/TiO2Film should first prepare Au-Al first2O3/TiO2Powder,
Preparation step is as follows:
It weighs 10g gold chloride to be dissolved in 1L deionized water, chlorauric acid solution is prepared, add 15g alumina powder
End carries out ultrasonic wave and disperses 6min, and dispersion forms the ethanol solution of addition 70wt% after suspension, carries out ultrasonic wave stirring and adds
Heat obtains Au-Al after reaction 0.5 to 90 DEG C2O3Powder；
It weighs 50ml butyl titanate to be slowly dropped in 150ml ethanol solution, with magnetic stirrer 10min
Afterwards, yellow clear solution is obtained, and the mixed solution of 75ml glacial acetic acid and 5ml ethanol solution is added to yellow clear solution
In, pH=3 is adjusted with hydrochloric acid, Au-Al is added after 40 DEG C of heating water baths stir 30min2O3Powder continues to stir 2h to gel
Shape, after standing aging 12h, the freeze-day with constant temperature 10h at 150 DEG C, calcining 3h obtains Au-Al at 500 DEG C2O3/TiO2Powder.
It prepares according to the method described above and completes Au-Al2O3/TiO2After powder, supported nano-Au-Al is carried out2O3/TiO2Film system
Standby, steps are as follows:
(1) 30g chitosan is added into the 1000ml organic acid formic acid solution of pH=3, obtains chitosan solution；Wherein,
The mass volume ratio of chitosan and formic acid solution is 1~3g:100mL；
(2) 100g Au-Al is weighed2O3/TiO2Powder is placed in load ware, will be obtained in step (1) using liquid-transfering gun
Chitosan solution is all added in load wares, and ultrasound 30min after dropwise addition is placed in air aging for 24 hours；Later by obtained powder
End is placed under air atmosphere, is heated to 350 DEG C with the heating rate of 5 DEG C/min, that is, is obtained the Au-Al of loading chitosan2O3/
TiO2Powder, it is spare；
(3) Au-Al of the loading chitosan of step (2) preparation is weighed2O3/TiO2Powder 10g is placed in test tube, side stirring
While methanol solution is added into test tube, and ultrasonic wave disperses, and obtains 70wt% suspension；
(4) above-mentioned suspension flow is extended down on glass dish using the tape casting, after glass dish is placed in 80 DEG C of vacuum
Constant temperature 3h is under baking oven to get Au-Al2O3/TiO2Film.
Wherein, the formic acid solution used in step (1) can also choose one of acetic acid, hydrochloric acid, lactic acid, nitric acid or phosphoric acid
Or it is a variety of.
Embodiment 4: antibacterial air-filtering membrane one
The method for preparing antibacterial air-filtering membrane is as follows:
Ptt fiber and PET fiber are passed through into the third that compound film device is imported without spinning membrane filter one end that composite spinning is formed
It on heating roller, and is compressed with pressure roller, is passed through 160 DEG C of circulating airs；Supported nano-Au-Al prepared by embodiment one2O3/
TiO2Film one end imports on the second roller of compound film device, and is compressed with pressure roller；Polyethersulfone membranes one end importing composite membrane is set
On the first standby heating roller, 150 DEG C of circulating airs are passed through, and compressed with pressure roller；Compound film device is opened, sets 0.1m/min's
The tension value of linear velocity and 10N, will be without spinning membrane filter, supported nano-Au-Al2O3/TiO2Film, polyethersulfone membranes are drawn extremely simultaneously
Carried out on composite roll it is compound, it is compound after with traction roller to front haulage, ratio of drawing is 1.1 times, obtains filter membrane blank；It will filtering
Film blank flash severing, obtains antibacterial air-filtering membrane.
Wherein, the two-component doughnut formed through ptt fiber and PET fiber by composite spinning is without spinning membrane filter and polyethers
Sulfone filter membrane can directly be bought from chemical fibre market.
Embodiment 5: antibacterial air-filtering membrane two
The method for preparing antibacterial air-filtering membrane is as follows:
Ptt fiber and PET fiber are passed through into the third that compound film device is imported without spinning membrane filter one end that composite spinning is formed
It on heating roller, and is compressed with pressure roller, is passed through 200 DEG C of circulating airs；Supported nano-Au-Al prepared by embodiment two2O3/
TiO2Film one end imports on the second roller of compound film device, and is compressed with pressure roller；Polyethersulfone membranes one end importing composite membrane is set
On the first standby heating roller, 120 DEG C of circulating airs are passed through, and compressed with pressure roller；Compound film device is opened, sets 0.2m/min's
The tension value of linear velocity and 15N, will be without spinning membrane filter, supported nano-Au-Al2O3/TiO2Film, polyethersulfone membranes are drawn extremely simultaneously
Carried out on composite roll it is compound, it is compound after with traction roller to front haulage, ratio of drawing is 1.3 times, obtains filter membrane blank；It will filtering
Film blank flash severing, obtains antibacterial air-filtering membrane.
Wherein, the two-component doughnut formed through ptt fiber and PET fiber by composite spinning is without spinning membrane filter and polyethers
Sulfone filter membrane can directly be bought from chemical fibre market.
The above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to preferred embodiment to this hair
It is bright to be described in detail, those skilled in the art should understand that, it can modify to technical solution of the present invention
Or equivalent replacement should all cover without departing from the objective and range of technical solution of the present invention in claim of the invention
In range.Technology not described in detail in the present invention, shape, construction portion are well-known technique.
Claims (9)
1. a kind of antibacterial air-filtering membrane, which is characterized in that the antibacterial air-filtering membrane include from the inside to the outside the second adsorption layer,
Antibiotic layer and first adsorption layer, second adsorption layer be two-component doughnut be formed by weaving without spinning membrane filter, the antibacterial
Layer is compounded in the outer surface of the second adsorption layer, and the antibiotic layer is loaded nano Au-Al2O3/TiO2Film, first absorption
Layer is compounded in the outer surface of antibiotic layer, and the first adsorption layer is polyethersulfone membranes.
2. a kind of antibacterial air-filtering membrane according to claim 1, which is characterized in that the no spinning membrane filter is with PTT fibre
Two-component doughnut structure made of peacekeeping PET fiber Compound spinning.
3. a kind of antibacterial air-filtering membrane according to claim 1, which is characterized in that the supported nano-Au-Al2O3/
TiO2The raw material for preparing of film includes: aluminium oxide, gold chloride, butyl titanate, chitosan, methanol, acid solution.
4. a kind of antibacterial air-filtering membrane according to claim 1-3, which is characterized in that antibacterial air-filtering membrane
The preparation method is as follows:
No spinning membrane filter one end is imported on the third heating roller of compound film device, and is compressed with pressure roller, 160-200 DEG C of circulation is passed through
Hot wind；By supported nano-Au-Al2O3/TiO2Film one end imports on the second roller of compound film device, and is compressed with pressure roller；It will gather
Ether sulfone filter membrane one end imports on the first heating roller of compound film device, is passed through 120-150 DEG C of circulating air, and compressed with pressure roller；
Compound film device is opened, linear velocity and tension value are set, it will be without spinning membrane filter, supported nano-Au-Al2O3/TiO2Film, polyether sulfone
Filter membrane draw simultaneously it is compound to carrying out on composite roll, it is compound after with traction roller to front haulage, obtain filter membrane blank；By filter membrane
Blank flash severing, obtains antibacterial air-filtering membrane.
5. a kind of antibacterial air-filtering membrane according to claim 4, which is characterized in that the antibacterial air-filtering membrane preparation
In, the linear velocity that sets as 0.1~0.2m/min, tension value be 10~15N.
6. a kind of antibacterial air-filtering membrane according to claim 5, which is characterized in that the supported nano-Au-Al2O3/
TiO2Film is prepared using following method:
(1) chitosan is added into the acid solution of pH=1-5, obtains chitosan solution；Wherein, the chitosan and acid solution
Mass volume ratio is 1~3g:100mL；
(2) 100gAu-Al is weighed2O3/TiO2Powder is placed in load ware, the chitosan that will be obtained in step (1) using liquid-transfering gun
Solution is all added in load wares, and ultrasound 30min after dropwise addition is placed in air aging for 24 hours；Obtained powder is placed in sky later
Under gas atmosphere, 350 DEG C are heated to the heating rate of 5 DEG C/min, that is, obtains the Au-Al of loading chitosan2O3/TiO2Powder, it is standby
With；
(3) Au-Al of the loading chitosan of step (2) preparation is weighed2O3/TiO2Powder 10g is placed in test tube, while stirring to
Methanol solution is added in test tube, and ultrasonic wave disperses, and obtains suspension；
(4) above-mentioned suspension flow is extended down on glass dish using the tape casting, after glass dish is placed in 80 DEG C of vacuum drying ovens
Lower constant temperature 3h is to get Au-Al2O3/TiO2Film.
7. a kind of antibacterial air-filtering membrane according to claim 6, which is characterized in that acid solution described in step (1) is
Organic acid soln and/or inorganic acid solution, the organic acid include acetic acid, formic acid, lactic acid, and the inorganic acid includes hydrochloric acid, nitre
Acid or phosphoric acid.
8. a kind of antibacterial air-filtering membrane according to claim 7, which is characterized in that the Au-Al2O3/TiO2Powder
Preparation step is as follows:
It weighs butyl titanate to be slowly dropped in ethanol solution, after magnetic stirrer 10-12min, obtains yellow
Clear solution, and the mixed solution of glacial acetic acid and ethanol solution is added in yellow clear solution, pH=3 is adjusted, in 40 DEG C
Au-Al is added after heating water bath stirring 30min2O3Powder continues to stir 1-2h to gel, after standing aging 12h, in 150 DEG C
Lower freeze-day with constant temperature 10h, calcining 2.5-3h obtains Au-Al at 500 DEG C2O3/TiO2Powder.
9. a kind of antibacterial air-filtering membrane according to claim 8, which is characterized in that the Au-Al2O3The preparation of powder
Steps are as follows:
It weighs gold chloride to be dissolved in deionized water, chlorauric acid solution is prepared, add alumina powder and carry out ultrasonic wave
Dispersion, dispersion form the ethanol solution of addition 65-70wt% after suspension, carry out ultrasonic wave and are stirred and heated to 80-90 DEG C, instead
Au-Al is obtained after answering 0.5-2h2O3Powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810978381.9A CN109011920B (en) | 2018-08-27 | 2018-08-27 | Antibacterial air filtering membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810978381.9A CN109011920B (en) | 2018-08-27 | 2018-08-27 | Antibacterial air filtering membrane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109011920A true CN109011920A (en) | 2018-12-18 |
| CN109011920B CN109011920B (en) | 2020-08-14 |
Family
ID=64624546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810978381.9A Active CN109011920B (en) | 2018-08-27 | 2018-08-27 | Antibacterial air filtering membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109011920B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115445326A (en) * | 2022-09-29 | 2022-12-09 | 天津日津科技股份有限公司 | A composite antibacterial air filter membrane |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5543046A (en) * | 1992-05-21 | 1996-08-06 | Van Rijn; Cornelis J. M. | Inorganic membrane for microfiltration, and a process for production of such an inorganic membrane |
| JP2002193777A (en) * | 2000-12-27 | 2002-07-10 | Sangi Co Ltd | Oral composition |
| CN1714930A (en) * | 2004-06-14 | 2006-01-04 | 中国科学院生态环境研究中心 | Formaldehyde gas oxidation catalyst at room temperature |
| WO2007055663A1 (en) * | 2005-11-14 | 2007-05-18 | Agency For Science, Technology And Research | Highly dispersed metal calatysts |
| CN101210081A (en) * | 2007-12-20 | 2008-07-02 | 江汉大学 | Preparation of Chitosan/TiO2 Composite |
| CN101259381A (en) * | 2007-12-19 | 2008-09-10 | 天津大学 | A kind of hollow fiber composite membrane and preparation method and application |
| CN101559377A (en) * | 2009-05-21 | 2009-10-21 | 浙江师范大学 | Supported catalyst for eliminating formaldehyde, preparation method and application thereof |
| CN106345311A (en) * | 2016-09-19 | 2017-01-25 | 江苏海纳空调净化设备有限公司 | Antibacterial non-woven filter film and weaving process thereof |
-
2018
- 2018-08-27 CN CN201810978381.9A patent/CN109011920B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5543046A (en) * | 1992-05-21 | 1996-08-06 | Van Rijn; Cornelis J. M. | Inorganic membrane for microfiltration, and a process for production of such an inorganic membrane |
| JP2002193777A (en) * | 2000-12-27 | 2002-07-10 | Sangi Co Ltd | Oral composition |
| CN1714930A (en) * | 2004-06-14 | 2006-01-04 | 中国科学院生态环境研究中心 | Formaldehyde gas oxidation catalyst at room temperature |
| WO2007055663A1 (en) * | 2005-11-14 | 2007-05-18 | Agency For Science, Technology And Research | Highly dispersed metal calatysts |
| CN101259381A (en) * | 2007-12-19 | 2008-09-10 | 天津大学 | A kind of hollow fiber composite membrane and preparation method and application |
| CN101210081A (en) * | 2007-12-20 | 2008-07-02 | 江汉大学 | Preparation of Chitosan/TiO2 Composite |
| CN101559377A (en) * | 2009-05-21 | 2009-10-21 | 浙江师范大学 | Supported catalyst for eliminating formaldehyde, preparation method and application thereof |
| CN106345311A (en) * | 2016-09-19 | 2017-01-25 | 江苏海纳空调净化设备有限公司 | Antibacterial non-woven filter film and weaving process thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115445326A (en) * | 2022-09-29 | 2022-12-09 | 天津日津科技股份有限公司 | A composite antibacterial air filter membrane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109011920B (en) | 2020-08-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104145993B (en) | A kind of chitosan and silver-bearing copper are blended the method preparing complex antimicrobials | |
| CN102233269B (en) | Integral nano material with high-efficiency removing formaldehyde at room temperature and broad-spectrum long-acting antibacterial property at same time | |
| CN105174859B (en) | Based on kieselguhr micropowder except formaldehyde in indoor air, abnormal flavour interior wall coating and preparation method thereof | |
| CN1331400C (en) | Preparation method of composite photocatalyst antibacterial agent | |
| CN107830591A (en) | A kind of hospital department exhaust disposal device and processing method | |
| CN105992916A (en) | Home appliance including photocatalyst for visible rays | |
| CN106665651A (en) | Preparation method of stable sepiolite antibacterial powder | |
| CN102017997A (en) | High-efficiency monatomic silver nanowire antibiotic material | |
| CN114288406B (en) | Zn-MOF@Ti 3 C 2 T x Hybrid material, preparation method and application thereof | |
| CN104264450B (en) | A kind of silk fabric antibacterial finishing agent and preparation method thereof | |
| Rao et al. | Polyethyleneimine induced highly dispersed Ag nanoparticles over g-C3N4 nanosheets for efficient photocatalytic and antibacterial performance | |
| CN105754136A (en) | Antibacterial aerogel with cellulose loaded with nano silver and preparation method and application thereof | |
| CN107115721A (en) | A kind of air purifier screen pack composite and preparation method thereof | |
| Zhang et al. | ZIF-8 modified by isocyanate as a photocatalytic antibacterial agent | |
| CN115137669A (en) | Preparation method of silicon dioxide loaded nano-silver composite material | |
| CN102284291A (en) | Titanium dioxide load-type nanometer cold catalyst for air purifier inside car | |
| CN110938230B (en) | A kind of multifunctional foamed natural rubber with both high catalytic performance and antibacterial performance and preparation method thereof | |
| CN109011920A (en) | A kind of antibacterial air-filtering membrane | |
| CN102085481A (en) | Preparation and application of composite photo-catalysis bactericide for visible light response | |
| CN109354935A (en) | A kind of mould proof diatom ooze coating of resistant and preparation method thereof | |
| Pan et al. | AgNPs/gC 3 N 4/PVA antibacterial hydrogel with excellent photocatalytic antibacterial activity for wound dressing | |
| CN114532364B (en) | Method for preparing nano-selenium/attapulgite composite antibacterial material by using olive leaf extract | |
| CN106689201B (en) | Nano silver antibacterial agent and preparation method thereof | |
| CN109621932A (en) | White carbon black-titanic oxide composite photochemical catalyst antibacterial agent preparation method | |
| CN108654664A (en) | A kind of emulation plant and preparation method with visible light-responded catalysis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: An antibacterial air filter membrane Effective date of registration: 20230317 Granted publication date: 20200814 Pledgee: Fuyang sub branch of Bank of Hangzhou Co.,Ltd. Pledgor: HANGZHOU BODA PURIFYING EQUIPMENT Co.,Ltd. Registration number: Y2023330000556 |