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CN107803112A - Photocatalyst air purifying agent and preparation method thereof - Google Patents

Photocatalyst air purifying agent and preparation method thereof Download PDF

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Publication number
CN107803112A
CN107803112A CN201711073731.9A CN201711073731A CN107803112A CN 107803112 A CN107803112 A CN 107803112A CN 201711073731 A CN201711073731 A CN 201711073731A CN 107803112 A CN107803112 A CN 107803112A
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weight
parts
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air purifying
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卯志华
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Changsha Qiudianbing Information Technology Co ltd
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
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    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/48—Silver or gold
    • B01J23/50—Silver
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    • B01J35/39—Photocatalytic properties
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/106—Silica or silicates
    • B01D2253/11—Clays
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    • B01D2255/802—Photocatalytic
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01D2257/91—Bacteria; Microorganisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/06—Polluted air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
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    • B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation

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Abstract

The invention provides a photocatalyst air purifying agent and a preparation method thereof, and the photocatalyst air purifying agent comprises the following steps: mixing titanium tetrachloride with water to obtain a titanium tetrachloride solution; mixing polyethylene glycol, silver nitrate and water to obtain mixed solution M1; dripping the mixed solution M1 into a titanium tetrachloride solution to prepare silver-loaded nano titanium dioxide; mixing attapulgite clay and a silane coupling agent for reaction, and drying to obtain modified attapulgite clay; mixing toluene, modified attapulgite clay, acrylamide and azobisisobutyronitrile, filtering and drying to obtain a composite material M2; mixing silver-loaded nano titanium dioxide and the composite material M2, filtering and drying to obtain a composite material M3; soaking herba Artemisiae Annuae, radix Sophorae Flavescentis, herba Menthae, Coptidis rhizoma and fructus Schisandrae chinensis in ethanol to obtain soaking solution; and (3) soaking the composite material M3 in a soaking solution, and drying to obtain the photocatalyst air purifying agent. The problem that indoor air is poor, especially organic matters such as formaldehyde and germs cause harm to human health is solved.

Description

Photocatalyst air purifying agent and preparation method thereof
Technical field
The present invention relates to air purifying preparation field, especially, is related to a kind of photocatalyst air purifying agent and preparation method thereof.
Background technology
With the continuous development of science and technology, whether daily life or work, the time that people spend indoors is increasingly It is more.Not only the toxic and harmful gas such as caused formaldehyde causes huge injury to people's cognition in fitment process, and stays in for a long time Interior, air not enough circulate, while densely populated place degree is larger, and these can all cause germ etc. to concentrate on interior for a long time, especially In office, as long as people's flu, then often occur the phenomenon caught a cold again and again, if things go on like this, to the health of human body Cause great harm so that resistance declines.
Application No. CN200910153373.1 patent discloses a kind of system of load type nano titanium dioxide catalyst Preparation Method, wherein being mainly used for the degradation treatment to the organic matter in water body, for air, especially indoor environment and germ Do not referred to Deng；Application No. CN201410401174.9 patent discloses a kind of novel photocatalyst air purifying preparation and system Preparation Method, although wherein disclose the purification to air, the wherein place primarily directed to organic matters such as the formaldehyde in finishing Reason, to germ still without processing still do not have preferable processing mode.And in our real lifes, the production of the finishing such as formaldehyde Raw poisonous and harmful substance, often can effectively it be kept away by buying product or the ventilation longer time of preferable quality Exempt from, but germ carried etc. can then follow people to be propagated, it is at all uncontrollable.
The content of the invention
Present invention aims at providing a kind of photocatalyst air purifying agent and preparation method thereof, with solve room air compared with The problem of organic matters such as difference, especially formaldehyde and germ etc. damage to health.
To achieve the above object, the invention provides a kind of preparation method of photocatalyst air purifying agent, wherein, including with Lower step：
1) under conditions of temperature is 0-5 DEG C, titanium tetrachloride and water is mixed, obtain titanium tetrachloride solution；
2) polyethylene glycol, silver nitrate and water are mixed, mixed liquor M1 is made；
3) under conditions of heating water bath, mixed liquor M1 is added dropwise in titanium tetrachloride solution, after reacting 6-8h, filtering, Precipitation drying is taken, Ag-carried nanometer titanium dioxide is made；
4) in the presence of a solvent, by after attapulgite clay and silane coupler hybrid reaction 3-8h, above-mentioned will mix Compound filtration drying, obtain modified attapulgite clay；
5) under conditions of nitrogen protection, toluene, modified attapulgite clay, acrylamide and azodiisobutyronitrile are mixed Filter, dry after reaction 3-5h, obtain composite M2；
6), will be obtained in obtained Ag-carried nanometer titanium dioxide in step 3) and step 5) under the conditions of existing for acetone Filtering, dry, obtained composite M3 after composite M2 is mixed under conditions of being 40-80 DEG C in temperature；
7) sweet wormwood, kuh-seng, peppermint, the coptis and the fruit of Chinese magnoliavine are placed in ethanol and soaked, take soak；
8) composite M3 is placed in soak after soaking, dries, photocatalyst air purifying agent is made.
As preferable, relative to the titanium tetrachloride of 100 parts by weight, the dosage of polyethylene glycol is 5-20 parts by weight, nitric acid The dosage of silver is 0.1-1 parts by weight.
Also include adding activated carbon granule as preferable, in step 2) and carry out vibration mixing.
As preferable, relative to the titanium tetrachloride of 100 parts by weight, the dosage of activated carbon is 0.1-1 parts by weight.
As preferable, the activated carbon granule also passes through preprocessing process before combination, and the preprocessing process includes： Activated carbon granule is placed in the potassium bichromate solution that concentration is 0.4-0.6mol/L after soaking 20-30h, then it is 6- to be placed in concentration After soaking 30-50h in 8 weight % hydrogen peroxide solution, it is cleaned and dried, the activated carbon granule after being handled.
As preferable, in step 4), the solvent is selected from least one of toluene, ethanol and acetone；The silane Coupling agent is selected from KH560 and/or KH570 silane couplers；And it is relative to 10g attapulgite clay, the dosage of the solvent 200-400mL, the dosage of the silane coupler is 8-15mL；Mixed process in step 4) is that to be first placed in temperature be 35-50 Under conditions of DEG C, after first sonic oscillation mixing 30-60min, then 3-7h is stirred with 150-500r/min stir speed (S.S.).
As preferable, in step 5), relative to 10g modified attapulgite clay, the dosage of toluene is 300-600mL, The dosage of acrylamide is 10-15g, and the dosage of azodiisobutyronitrile is 1-3g.
As preferable, in step 6), relative to the composite M2 of 10 parts by weight, the dosage of Ag-carried nanometer titanium dioxide For 3-8 parts by weight.
As preferable, in step 7), relative to the ethanol of 100 parts by weight, the dosage of sweet wormwood is 20-30 parts by weight, bitter The dosage of ginseng is 5-20 parts by weight, and the dosage of peppermint is 3-10 parts by weight, and the dosage of the coptis is 5-10 parts by weight, the use of the fruit of Chinese magnoliavine Measure as 5-10 parts by weight.
As preferable, in step 8), relative to the soak of 100 parts by weight, composite M3 dosage is 50-100 Parts by weight.
A kind of photocatalyst air purifying agent is additionally provided, wherein, the photocatalyst air purifying agent is according to described above Preparation method is made.
The invention has the advantages that：
The titanium tetrachloride of the present invention mixes under conditions of for 0-5 DEG C with water, obtains titanium tetrachloride aqueous solution, titanium tetrachloride It is present in TiOCl construction unit in water, forms precursor construction, then polyethylene glycol, silver nitrate and water are mixed, is formed mixed Liquid M1 is closed, mixed liquor M1 is added dropwise in the above-mentioned titanium tetrachloride solution for being formed as precursor construction, in heating water bath and poly- second On the premise of glycol is as reducing agent, precursor construction hydrolyzes to form nano-TiO2, while hydrolyzing to form TiO2During wrap Silver salt is covered, silver ion is carried on nano-TiO2Surface, it is effectively improved TiO2Photocatalytic effect, be carried on nano-TiO2On Silver ion also can effectively sustained-release antibacterial；At the same time, attapulgite clay is made into its crystal structure through silane coupler modified In further form a series of crystal ducts, improve its specific surface area, then add acrylamide and azodiisobutyronitrile thereto, So that amide groups is grafted on attapulgite clay by graft reaction, and substantial amounts of silicone hydroxyl is contained on attapulgite clay surface, can Composite is generated by above-mentioned graft reaction with amide groups, further improved brilliant present in the crystal structure of attapulgite clay Volume defect and room, make it that not only there is more preferable absorption property, and the energy above-mentioned Ag-carried nanometer titanium dioxide of pay(useful) load, and Ag-carried nanometer titanium dioxide can be filled in above-mentioned crystal defect and room, compensate for the crystal defect of attapulgite clay, and is carried Silver nanoparticle titanium dioxide easily gathers in itself, and the problems such as causing light sensitivity difference also can be by composite M2 to silver-carrying nano titanium dioxide The effectively scattered of titanium further improves its dispersiveness and light sensitivity, realizes the preferably purification to debirs.
Further, sweet wormwood, kuh-seng, peppermint, the coptis and the fruit of Chinese magnoliavine are placed in ethanol and soaked, volatile oil in sweet wormwood, Qinghaosu etc., matrine, Anagyrine in kuh-seng, peppermint oil in peppermint etc., the coptisine in the coptis, five in the fruit of Chinese magnoliavine It taste element etc., can effectively be gone out by alcohol steep, and be loaded with the nano-TiO of silver2It is placed in above-mentioned leaching liquor, in leaching liquor Above-mentioned a variety of extraction elements can effectively be attached to nano-TiO2On, the nano-TiO under the conditions of light-catalysed2It is effectively organic to part Thing is degraded, and above-mentioned material is traveled further into the sustained release of silver ion in air, is effectively realized to a variety of germs Killing.Above-mentioned material is nontoxic, and can effectively decomposing organic matter and kill germ, realize to the effective of room air Purification.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages. The present invention is further detailed explanation below.
Embodiment
Embodiments of the invention are described in detail below, but the present invention can be limited and covered according to claim Multitude of different ways implement.
The invention provides a kind of preparation method of photocatalyst air purifying agent, wherein, comprise the following steps：
1) under conditions of temperature is 0-5 DEG C, titanium tetrachloride and water is mixed, obtain titanium tetrachloride solution；
2) polyethylene glycol, silver nitrate and water are mixed, mixed liquor M1 is made；
3) under conditions of heating water bath, mixed liquor M1 is added dropwise in titanium tetrachloride solution, after reacting 6-8h, filtering, Precipitation drying is taken, Ag-carried nanometer titanium dioxide is made；
4) in the presence of a solvent, by after attapulgite clay and silane coupler hybrid reaction 3-8h, above-mentioned will mix Compound filtration drying, obtain modified attapulgite clay；
5) under conditions of nitrogen protection, toluene, modified attapulgite clay, acrylamide and azodiisobutyronitrile are mixed Filter, dry after reaction 3-5h, obtain composite M2；
6), will be obtained in obtained Ag-carried nanometer titanium dioxide in step 3) and step 5) under the conditions of existing for acetone Filtering, dry, obtained composite M3 after composite M2 is mixed under conditions of being 40-80 DEG C in temperature；
7) sweet wormwood, kuh-seng, peppermint, the coptis and the fruit of Chinese magnoliavine are placed in ethanol and soaked, take soak；
8) composite M3 is placed in soak after soaking, dries, photocatalyst air purifying agent is made.
The invention has the advantages that：The titanium tetrachloride of the present invention mixes under conditions of for 0-5 DEG C with water, obtains Titanium tetrachloride aqueous solution, titanium tetrachloride are present in water with TiOCl construction unit, form precursor construction, then by poly- second two Alcohol, silver nitrate and water mixing, form mixed liquor M1, mixed liquor M1 are added dropwise into the above-mentioned titanium tetrachloride for being formed as precursor construction In solution, on the premise of heating water bath and polyethylene glycol are as reducing agent, precursor construction hydrolyzes to form nano-TiO2, simultaneously Hydrolyzing to form TiO2During coat silver salt, silver ion is carried on nano-TiO2Surface, it is effectively improved TiO2Light urge Change effect, meanwhile, it is carried on nano-TiO2On silver ion also can effectively sustained-release antibacterial；At the same time, by attapulgite clay Through silane coupler modified, make further to form a series of crystal ducts in its crystal structure, improve its specific surface area, then to its Middle addition acrylamide and azodiisobutyronitrile so that amide groups is grafted on attapulgite clay by graft reaction, and concavo-convex Rod surface of clay contains substantial amounts of silicone hydroxyl, can generate composite by above-mentioned graft reaction with amide groups, further improve Crystal defect present in the crystal structure of attapulgite clay and room, make it that not only there is more preferable absorption property, and can have Effect loads above-mentioned Ag-carried nanometer titanium dioxide, realizes the preferably purification to debirs.Further, by sweet wormwood, kuh-seng, thin Lotus, the coptis and the fruit of Chinese magnoliavine, which are placed in ethanol, to be soaked, volatile oil, qinghaosu in sweet wormwood etc., matrine, An Naji in kuh-seng Alkali, the peppermint oil in peppermint etc., the coptisine in the coptis, schizandrin in the fruit of Chinese magnoliavine etc., effectively can be gone out by alcohol steep, And it is loaded with the nano-TiO of silver2It is placed in above-mentioned leaching liquor, above-mentioned a variety of extraction elements in leaching liquor can effectively be attached to nanometer TiO2On, the nano-TiO under the conditions of light-catalysed2Effectively partial organic substances are degraded, and above-mentioned material is with silver ion Sustained release and travel further into air, effectively realize the killing to a variety of germs.Above-mentioned material is nontoxic, and can Effective decomposing organic matter and killing germ, realize effective purification to room air.
The dosage of above-mentioned raw materials can select in wide scope, for example, in a kind of preferred embodiment, relative to The titanium tetrachloride of 100 parts by weight, the dosage of polyethylene glycol is 5-20 parts by weight, and the dosage of silver nitrate is 0.1-1 parts by weight.Certainly In titanium tetrachloride solution and mixed liquor M1 the concentration of each material can according to being actually adjusted, of course, it is possible to for saturation it is molten Liquid, or the solution that concentration is relatively low, are seldom explained herein.
In further embodiment, in order that nano titanium oxide can preferably load having in silver salt and soak Composition is imitated, further improves the performances such as antibacterial, also including addition activated carbon granule in step 2) carries out vibration mixing.
In preferred embodiment, relative to the titanium tetrachloride of 100 parts by weight, the dosage of activated carbon is 0.1-1 parts by weight.
In further preferred embodiment, exist to preferably improve absorption and load effect, the activated carbon granule Also pass through preprocessing process before mixing, the preprocessing process includes：It is 0.4-0.6mol/L that activated carbon granule is placed in into concentration Potassium bichromate solution in soak 20-30h after, then be placed in concentration be 6-8 weight % hydrogen peroxide solution in soak 30-50h after, It is cleaned and dried, the activated carbon granule after being handled.
Solvent, silane coupler in step 4) can be selected from wide scope, for example, the solvent is selected from toluene, ethanol At least one of with acetone；The silane coupler is selected from KH560 and/or KH570 silane couplers.It is further preferred In, relative to 10g attapulgite clay, the dosage of the solvent is 200-400mL, and the dosage of the silane coupler is 8- 15mL；Mixed process in step 4) is first to be placed under conditions of temperature is 35-50 DEG C, first sonic oscillation mixing 30-60min Afterwards, then with 150-500r/min stir speed (S.S.) it is stirred 3-7h.
It is further preferably in, in step 5), relative to 10g modified attapulgite clay, the dosage of toluene is 300- 600mL, the dosage of acrylamide is 10-15g, and the dosage of azodiisobutyronitrile is 1-3g.
Similarly, in step 6), relative to the composite M2 of 10 parts by weight, the dosage of Ag-carried nanometer titanium dioxide is 3- 8 parts by weight.
In order that the active constituent content that extracts in soak is higher and cause the active ingredient in each raw material as far as possible Can sufficiently it be extracted, in step 7), relative to the ethanol of 100 parts by weight, the dosage of sweet wormwood is 20-30 parts by weight, kuh-seng Dosage be 5-20 parts by weight, the dosage of peppermint is 3-10 parts by weight, and the dosage of the coptis is 5-10 parts by weight, the dosage of the fruit of Chinese magnoliavine For 5-10 parts by weight.
Further, in step 8), relative to the soak of 100 parts by weight, composite M3 dosage is 50-100 weights Measure part.
A kind of photocatalyst air purifying agent is additionally provided, wherein, the photocatalyst air purifying agent is according to described above Preparation method is made.
It is specific embodiment below.Wherein, activated carbon is activated carbon after pretreatment, and preprocess method is：Will be living Property charcoal particle be placed in the potassium bichromate solution that concentration is 0.5mol/L and soak 25h after, rinse colourless to washing lotion, then be placed in concentration After soaking 40h in 6-8 weight % hydrogen peroxide solution, it is cleaned and dried, the activated carbon granule after being handled.
Embodiment 1
1) under conditions of temperature is 0 DEG C, 100 parts by weight titanium tetrachlorides and 500 parts by weight water is mixed, obtain four chlorinations Titanium solution；
2) 5 parts by weight polyethylene glycol, 0.1 parts by weight silver nitrate, 20 parts by weight water and 0.1 parts by weight of activated carbon are vibrated mixed Close, mixed liquor M1 is made；
3) under conditions of heating water bath, mixed liquor M1 is added dropwise in titanium tetrachloride solution, after reacting 6h, filtering, taken Drying is precipitated, Ag-carried nanometer titanium dioxide is made；
4) it is 35 by 10g attapulgite clays and 8mLKH570 silane couplers temperature under the conditions of existing for 200mL toluene , will be above-mentioned mixed after first sonic oscillation mixing 30min, then after being stirred 3h with 150r/min stir speed (S.S.) under conditions of DEG C Compound filtration drying, obtain modified attapulgite clay；
5) it is under conditions of nitrogen protection, 300mL toluene, 10g modified attapulgites clay, 10g acrylamides and 1g is even Filter, dry after nitrogen bis-isobutyronitrile hybrid reaction 3h, obtain composite M2；
6) under the conditions of existing for acetone, by obtained 3 parts by weight Ag-carried nanometer titanium dioxides and step 5) in step 3) In obtained 10 parts by weight composite M2 be 40 DEG C in temperature under conditions of mix after filtering, dry, composite M3 is made；
7) 20 parts by weight sweet wormwoods, 5 parts by weight kuh-sengs, 3 parts by weight peppermints, the 5 parts by weight coptiss and the 5 parts by weight fruit ofs Chinese magnoliavine are put Soaked in 100 parts by weight of ethanol, take soak；
8) 50 parts by weight composite M3 are placed in 100 parts by weight soaks after soaking, dry, photocatalyst air is made Cleanser A1.
Embodiment 2
1) under conditions of temperature is 5 DEG C, 100 parts by weight titanium tetrachlorides and 1000 parts by weight water is mixed, obtain tetrachloro Change titanium solution；
2) 20 parts by weight polyethylene glycol, 1 parts by weight silver nitrate, 20 parts by weight water and 1 parts by weight of activated carbon are vibrated and mixed, Mixed liquor M1 is made；
3) under conditions of heating water bath, mixed liquor M1 is added dropwise in titanium tetrachloride solution, after reacting 8h, filtering, taken Drying is precipitated, Ag-carried nanometer titanium dioxide is made；
4) under the conditions of existing for -400mL toluene, it is by 10g attapulgite clays and 15mLKH570 silane coupler temperature , will be above-mentioned after first sonic oscillation mixing 60min, then after being stirred 7h with 500r/min stir speed (S.S.) under conditions of 50 DEG C Mixture filtration drying, obtain modified attapulgite clay；
5) it is under conditions of nitrogen protection, 600mL toluene, 10g modified attapulgites clay, 15g acrylamides and 3g is even Filter, dry after nitrogen bis-isobutyronitrile hybrid reaction 5h, obtain composite M2；
6) under the conditions of existing for acetone, by obtained 8 parts by weight Ag-carried nanometer titanium dioxides and step 5) in step 3) In obtained 10 parts by weight composite M2 be 80 DEG C in temperature under conditions of mix after filtering, dry, composite M3 is made；
7) by 30 parts by weight sweet wormwoods, 20 parts by weight kuh-sengs, 10 parts by weight peppermints, the 10 parts by weight coptiss and the 10 parts by weight five tastes Son, which is placed in 100 parts by weight of ethanol, to be soaked, and takes soak；
8) 100 parts by weight composite M3 are placed in 100 parts by weight soaks after soaking, dry, it is empty that photocatalyst is made Gas cleanser A2.
Embodiment 3
1) under conditions of temperature is 3 DEG C, 100 parts by weight titanium tetrachlorides and 700 parts by weight water is mixed, obtain four chlorinations Titanium solution；
2) 10 parts by weight polyethylene glycol, 0.5 parts by weight silver nitrate, 20 parts by weight water and 0.5 parts by weight of activated carbon are vibrated Mixing, mixed liquor M1 is made；
3) under conditions of heating water bath, mixed liquor M1 is added dropwise in titanium tetrachloride solution, after reacting 7h, filtering, taken Drying is precipitated, Ag-carried nanometer titanium dioxide is made；
4) under the conditions of existing for 300mL toluene, it is by 10g attapulgite clays and 12mLKH570 silane coupler temperature , will be above-mentioned after first sonic oscillation mixing 50min, then after being stirred 5h with 300r/min stir speed (S.S.) under conditions of 45 DEG C Mixture filtration drying, obtain modified attapulgite clay；
5) it is under conditions of nitrogen protection, 500mL toluene, 10g modified attapulgites clay, 12g acrylamides and 2g is even Filter, dry after nitrogen bis-isobutyronitrile hybrid reaction 4h, obtain composite M2；
6) under the conditions of existing for acetone, by obtained 5 parts by weight Ag-carried nanometer titanium dioxides and step 5) in step 3) In obtained 10 parts by weight composite M2 be 60 DEG C in temperature under conditions of mix after filtering, dry, composite M3 is made；
7) by 25 parts by weight sweet wormwoods, 10 parts by weight kuh-sengs, 7 parts by weight peppermints, the 7 parts by weight coptiss and the 7 parts by weight fruit ofs Chinese magnoliavine It is placed in 100 parts by weight of ethanol and soaks, takes soak；
8) 80 parts by weight composite M3 are placed in 100 parts by weight soaks after soaking, dry, photocatalyst air is made Cleanser A3.
Embodiment 4
Prepare as described in Example 3, unlike, activated carbon granule is added without in step 2) and is mixed, obtained light touches Matchmaker's air purifying preparation A4.
Embodiment 5
Prepare as described in Example 1, unlike, the dosage of sweet wormwood is 10 parts by weight, and the dosage of kuh-seng is 3 parts by weight, The dosage of peppermint is 2 parts by weight, and the dosage of the coptis is 2 parts by weight, and the dosage of the fruit of Chinese magnoliavine is 2 parts by weight, and photocatalyst air is made Cleanser A5.
Embodiment 6
Prepare as described in Example 2, unlike, it is to be directly stirred with 150r/min stir speed (S.S.) in step 4) 3h, and the dosage of acrylamide is 5g in step 5), the dosage of azodiisobutyronitrile is 0.5g, and photocatalyst air purifying agent is made A6。
Comparative example 1
Prepare as described in Example 1, unlike, silver nitrate is added without, photocatalyst air purifying agent B1 is made.
Comparative example 2
Prepare as described in Example 2, unlike, to be carried out under conditions of room temperature (i.e. 20-25 DEG C) in step 3), it is made Cleanser B2.
Comparative example 3
Prepare as described in Example 3, unlike, without step 7) and step 8), silver-carrying nano dioxy is directly made Change titanium B3.
Comparative example 4
Prepare as described in Example 1, unlike, without step 4) and step 5), and by composite in step 6) M2 replaces with attapulgite clay, and photocatalyst air purifying agent B4 is made.
Test data
A1-A6, B1-B4 are detected for formaldehyde and TVOC in 24h according to QB2761, GB/T16129 and GB/T1883 Degradation rate, while above-mentioned A1-A5, B1-B3 are made into a diameter of 1cm respectively according to inhibition zone method, weight is 0.5g disk Shape, detects after its 24h that (concentration is 10 for Escherichia coli, staphylococcus aureus, mould and bacillus subtilis6cfu/ ML the diameter of antibacterial ring size).As a result it is as shown in the table.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies Change, equivalent substitution, improvement etc., should be included in the scope of the protection.

Claims (10)

1. a kind of preparation method of photocatalyst air purifying agent, it is characterised in that comprise the following steps：
1) under conditions of temperature is 0-5 DEG C, titanium tetrachloride and water is mixed, obtain titanium tetrachloride solution；
2) polyethylene glycol, silver nitrate and water are mixed, mixed liquor M1 is made；
3) under conditions of heating water bath, mixed liquor M1 is added dropwise in titanium tetrachloride solution, after reacting 6-8h, filtering, it is heavy to take Shallow lake drying, Ag-carried nanometer titanium dioxide is made；
4) in the presence of a solvent, by after attapulgite clay and silane coupler hybrid reaction 3-8h, by said mixture Filtration drying, obtain modified attapulgite clay；
5) under conditions of nitrogen protection, by toluene, modified attapulgite clay, acrylamide and azodiisobutyronitrile hybrid reaction Filter, dry after 3-5h, obtain composite M2；
6), will be obtained compound in obtained Ag-carried nanometer titanium dioxide in step 3) and step 5) under the conditions of existing for acetone Filtering, dry, obtained composite M3 after material M2 is mixed under conditions of being 40-80 DEG C in temperature；
7) sweet wormwood, kuh-seng, peppermint, the coptis and the fruit of Chinese magnoliavine are placed in ethanol and soaked, take soak；
8) composite M3 is placed in soak after soaking, dries, photocatalyst air purifying agent is made.
2. preparation method according to claim 1, it is characterised in that relative to the titanium tetrachloride of 100 parts by weight, poly- second two The dosage of alcohol is 5-20 parts by weight, and the dosage of silver nitrate is 0.1-1 parts by weight.
3. preparation method according to claim 2, it is characterised in that also include adding activated carbon granule progress in step 2) Vibration mixing；
Relative to the titanium tetrachloride of 100 parts by weight, the dosage of activated carbon is 0.1-1 parts by weight.
4. preparation method according to claim 3, it is characterised in that the activated carbon granule is before combination also by pre- place Reason process, the preprocessing process include：Activated carbon granule is placed in the potassium bichromate solution that concentration is 0.4-0.6mol/L After soaking 20-30h, then it is placed in the hydrogen peroxide solution that concentration is 6-8 weight % after immersion 30-50h, is cleaned and dried, obtains everywhere Activated carbon granule after reason.
5. preparation method according to claim 1 or 2, it is characterised in that in step 4), the solvent is selected from toluene, second At least one of alcohol and acetone；
The silane coupler is selected from KH560 and/or KH570 silane couplers；
And relative to 10g attapulgite clay, the dosage of the solvent is 200-400mL, and the dosage of the silane coupler is 8-15mL；
Mixed process in step 4) is first to be placed under conditions of temperature is 35-50 DEG C, after first sonic oscillation mixing 30-60min, 3-7h is stirred with 150-500r/min stir speed (S.S.) again.
6. preparation method according to claim 1 or 2, it is characterised in that in step 5), relative to the modified concavo-convex of 10g Rod clay, the dosage of toluene is 300-600mL, and the dosage of acrylamide is 10-15g, and the dosage of azodiisobutyronitrile is 1-3g.
7. preparation method according to claim 1 or 2, it is characterised in that in step 6), relative to the compound of 10 parts by weight Material M2, the dosage of Ag-carried nanometer titanium dioxide is 3-8 parts by weight.
8. preparation method according to claim 1, it is characterised in that in step 7), relative to the ethanol of 100 parts by weight, The dosage of sweet wormwood is 20-30 parts by weight, and the dosage of kuh-seng is 5-20 parts by weight, and the dosage of peppermint is 3-10 parts by weight, the coptis Dosage is 5-10 parts by weight, and the dosage of the fruit of Chinese magnoliavine is 5-10 parts by weight.
9. preparation method according to claim 1, it is characterised in that in step 8), relative to the immersion of 100 parts by weight Liquid, composite M3 dosage is 50-100 parts by weight.
10. a kind of photocatalyst air purifying agent, it is characterised in that the photocatalyst air purifying agent is according in claim 1-9 Preparation method described in any one is made.
CN201711073731.9A 2017-11-05 2017-11-05 Photocatalyst air purifying agent and preparation method thereof Withdrawn CN107803112A (en)

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CN109550316A (en) * 2018-12-10 2019-04-02 北京服装学院 A kind of flexible compound nano fibrous membrane and the preparation method and application thereof

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CN101342482A (en) * 2008-08-15 2009-01-14 淮阴师范学院 A kind of preparation method of attapulgite clay/polyacrylamide composite adsorbent
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CN106732427A (en) * 2016-12-29 2017-05-31 吴中区穹窿山德毅新材料技术研究所 A kind of Modified air cleanser and preparation method thereof

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CN101342482A (en) * 2008-08-15 2009-01-14 淮阴师范学院 A kind of preparation method of attapulgite clay/polyacrylamide composite adsorbent
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