CN110496649A - A kind of preparation method of emulsion paint metope photoactivation coating - Google Patents
A kind of preparation method of emulsion paint metope photoactivation coating Download PDFInfo
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- CN110496649A CN110496649A CN201910696746.3A CN201910696746A CN110496649A CN 110496649 A CN110496649 A CN 110496649A CN 201910696746 A CN201910696746 A CN 201910696746A CN 110496649 A CN110496649 A CN 110496649A
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- 239000000839 emulsion Substances 0.000 title claims abstract description 19
- 239000003973 paint Substances 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 238000000576 coating method Methods 0.000 title claims abstract description 14
- 239000011248 coating agent Substances 0.000 title claims abstract description 12
- 230000002186 photoactivation Effects 0.000 title claims abstract description 11
- -1 superoxide ion Chemical class 0.000 claims abstract description 29
- 230000005855 radiation Effects 0.000 claims abstract description 23
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 11
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 230000001376 precipitating effect Effects 0.000 claims abstract description 9
- 229910021642 ultra pure water Inorganic materials 0.000 claims abstract description 9
- 239000012498 ultrapure water Substances 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 239000000084 colloidal system Substances 0.000 claims description 7
- 238000011017 operating method Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 2
- HGWOWDFNMKCVLG-UHFFFAOYSA-N [O--].[O--].[Ti+4].[Ti+4] Chemical compound [O--].[O--].[Ti+4].[Ti+4] HGWOWDFNMKCVLG-UHFFFAOYSA-N 0.000 claims 1
- 239000011941 photocatalyst Substances 0.000 abstract description 37
- 150000001875 compounds Chemical class 0.000 abstract description 9
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 230000001590 oxidative effect Effects 0.000 abstract description 5
- 239000000243 solution Substances 0.000 description 46
- 239000000047 product Substances 0.000 description 23
- 238000005070 sampling Methods 0.000 description 20
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 14
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical class O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 13
- 230000015556 catabolic process Effects 0.000 description 8
- 238000006731 degradation reaction Methods 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 239000003344 environmental pollutant Substances 0.000 description 7
- 229910021645 metal ion Inorganic materials 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 231100000719 pollutant Toxicity 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 238000005286 illumination Methods 0.000 description 6
- 239000004408 titanium dioxide Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 239000002270 dispersing agent Substances 0.000 description 5
- 235000019256 formaldehyde Nutrition 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000006101 laboratory sample Substances 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 150000001450 anions Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001699 photocatalysis Effects 0.000 description 3
- 238000007146 photocatalysis Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 241000521257 Hydrops Species 0.000 description 2
- 206010030113 Oedema Diseases 0.000 description 2
- 229920001800 Shellac Polymers 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000006071 cream Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 125000000864 peroxy group Chemical group O(O*)* 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 239000004208 shellac Substances 0.000 description 2
- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 description 2
- 229940113147 shellac Drugs 0.000 description 2
- 235000013874 shellac Nutrition 0.000 description 2
- 241000894007 species Species 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 239000002966 varnish Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 description 1
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical compound [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000002155 anti-virotic effect Effects 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005354 coacervation Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- 239000012458 free base Substances 0.000 description 1
- 238000009396 hybridization Methods 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002120 nanofilm Substances 0.000 description 1
- 239000002086 nanomaterial Substances 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
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000243 photosynthetic effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
- B01J31/38—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of titanium, zirconium or hafnium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/34—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation
- B01J37/341—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation making use of electric or magnetic fields, wave energy or particle radiation
- B01J37/344—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation making use of electric or magnetic fields, wave energy or particle radiation of electromagnetic wave energy
- B01J37/346—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation making use of electric or magnetic fields, wave energy or particle radiation of electromagnetic wave energy of microwave energy
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a kind of preparation method of emulsion paint metope photoactivation coating, preparation step is as follows: (1) pouring into culture cup ultrapure water, then nano-titanium dioxide is added in culture cup；(2) colloidal solution after stirring is stood into 10min, and whether observe in cup has precipitating to occur；(3) superoxide ion reagent is injected into the colloidal solution after stirring by injection-tube；(4) mixed colloidal solution is placed in closed box, closed box is equipped with microwave radiation device, carries out comprehensive microwave radiation (5) for the solution left standstill 10-20min after radiation with the colloidal solution to its inside, can bottle.The present invention is doped with superoxide ion when preparing solution, and superoxide ion can not only effectively avoid the compound of electron-hole pair, improves absorption of the photocatalyst product to irradiation light, and can generate a large amount of hydroxyl radical free radical with strong oxidizing property.
Description
Technical field
The present invention relates to the preparation technical fields of photocatalyst product, apply more particularly to a kind of emulsion paint metope photoactivation
The preparation method of layer.
Background technique
Photocatalyst is a kind of using Nano titanium dioxide as the total of the photosemiconductor material with photo-catalysis function of representative
Claiming, oxidability is strong, and chemical property is stablized, and it is cheap and easy to get, it is nontoxic.Under the irradiation of light, itself does not occur photocatalyst
Chemical change but can produce similar photosynthetic light-catalyzed reaction.When it absorbs the energy in sunlight or other light sources
Afterwards, the electronics of ion surface is activated, and escapes from original track, while the hole that Surface Creation is positively charged, the electronics of evolution
With strong reducing property, hole can generate oxidizing force after then there is strong oxidizing property, the two to react with the aqueous vapor in air extremely strong certainly
By base, with harmful pollutant, foul smell, bacterium in environment of degrading etc., it is made to be degraded to stable and harmless water and carbon dioxide.
Present photocatalyst product is chiefly used in spray attachment on metope for the degradation to pollutants such as indoor formaldehydes after finishing.Existing light touching
Matchmaker's product has the disadvantage that
(1) emulsion paint that finishing metope uses generally is water soluble latex paints, and common photocatalyst product spray attachment is on metope
Shi Yinwei metope is loose porous, and part can penetrate into metope internal layer, prevent photocatalyst product is from receiving completely from outer
The light in portion irradiates, therefore reduces its degradation, can not effectively play the role of removal formaldehyde, carry out sterilizing and anti-virus.
(2) traditional photocatalyst product is only capable of under the ultraviolet light by higher-energy just showing photocatalysis work
Property, and the visible light in sunlight cannot efficiently use.
(3) photocatalyst product can not form one layer of complete molecular film in metope, after long-term ultraviolet irradiation, cream
The substances such as resin paint can gradually appear unsaturated state in shellac varnish, and metope can then turn yellow therewith, influence indoor beauty.
Summary of the invention
It is an object of the invention to: in order to overcome drawbacks described above, propose a kind of system of emulsion paint metope photoactivation coating
Preparation Method is to improve photocatalyst product to the degree of absorption of irradiation light and make its spray attachment that can form one complete point after metope
Sub- film.
To achieve the above object, the technical solution of the present invention is as follows: a kind of preparation side of emulsion paint metope photoactivation coating
Method, preparing raw material includes that nano-titanium dioxide, superoxide ion reagent and ultrapure water, preparation step are as follows:
(1) ultrapure water is poured into culture cup, then nano-titanium dioxide is added in culture cup, and when being added in cup
Solution is vigorously stirred, so that nano-titanium dioxide and ultrapure water form colloidal solution；
(2) colloidal solution after stirring is stood into 10min, and whether observe in cup has precipitating to occur；If being precipitated in cup,
Continue to be stirred colloidal solution 10min, and carry out standing 10min again, until occurring just carrying out down without precipitating after standing
One operating procedure；
(3) superoxide ion reagent is injected into the colloidal solution after stirring by injection-tube；
(4) mixed colloidal solution is placed in closed box, closed box is equipped with microwave radiation device, with the colloid to its inside
Solution carries out comprehensive microwave radiation；
(5) it by the solution left standstill 10-20min after radiation, can bottle.
Further, the microwave irradiation time is 1.5h-2h.
Further, its partial size of the nano-titanium dioxide is 3-5nm.
Further, the microwave radiation device is made of high frequency, the adjustable microwave oscillator of low-power and waveguide, can
Avoid colloidal solution own temperature when carrying out microwave radiation that from improving.
As the above scheme is adopted, the beneficial effects of the present invention are: the present invention proposes that a kind of emulsion paint metope is used up
The preparation method of catalyst coatings, benefit of the invention is that:
(1) present invention is doped with superoxide ion when preparing solution into colloidal solution, and superoxide ion can not only be avoided effectively
Electron-hole pair it is compound, improve absorption of the photocatalyst product to irradiation light, and can generate a large amount of with strong oxidizing property
Hydroxyl radical free radical further improves photocatalyst product to the degradation capability of pollutant.
(2) present invention carries out the microwave radiation of high frequency, low-power to colloidal solution, and microwave radiation can effectively change intermolecular
Active force, and it is dispersed, so that photocatalyst becomes the lesser particle of partial size, intermolecular connection is more stable, reduces
The hard aggregation of photocatalyst, the film forming after ensure that photocatalyst product spray attachment on emulsion paint metope.
Specific embodiment
Technical solution of the present invention will be clearly and completely described below, it is clear that described embodiment is this hair
Bright a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
Embodiment
A kind of preparation method of emulsion paint metope photoactivation coating, preparation step are as follows:
(1) ultrapure water of 100 parts by weight is poured into culture cup, then the nano-titanium dioxide of 2 parts by weight is added to culture cup
In, and solution in cup is vigorously stirred when being added, so that nano-titanium dioxide and ultrapure water form colloidal solution；
(2) colloidal solution after stirring is stood into 10min, and whether observe in cup has precipitating to occur；If being precipitated in cup,
Continue to be stirred colloidal solution 10min, and carry out standing 10min again, until occurring just carrying out down without precipitating after standing
One operating procedure；
(3) the superoxide ion reagent of 1 parts by weight is injected into the colloidal solution after stirring by injection-tube；
(4) mixed colloidal solution is placed in closed box, closed box is equipped with microwave radiation device, with the colloid to its inside
Solution carries out comprehensive microwave radiation；
(5) by the solution left standstill 10-20min after radiation, it can bottle, obtain photocatalyst product.
Titanium dioxide is wide bandgap semiconductor, and under normal circumstances, electronics will not transit to conduction band from valence band, when small with wavelength
Semiconductor is irradiated in the light of 387nm, i.e., when energy is greater than its forbidden bandwidth, photo-excited electron transits to conduction band, forms photoproduction electricity
Son then forms photohole in valence band accordingly.In general, semiconductor is capable of providing electronics to restore an electron acceptor, and it is empty
Cave can then move to surface and combine for the species of electron, so that the species aoxidize, to realize the drop to exterior materials
Solution.But because the energy that the semiconductor energy receives illumination is limited, electron-hole pair is easy to compound.So being
The light-catalysed efficiency of raising, to avoid the compound of electron-hole pair be critically important.
In traditional photocatalyst solution, the absorbability that metal ion can be added to expand photocatalyst product to sunlight,
Expand its absorption spectrum ranges.In photocatalyst solution, main component is titanium dioxide, the solution after preparation, titanium dioxide surface
There are peroxy groups, and peroxy is unstable, in illumination or heat, a large amount of hydroxide ions can be generated, according to chemical reaction
Basic common sense can obtain, and most metal ions, such as iron ion, silver ion can react with hydroxyl, and generate precipitating.So
After metal ion is added, after photocatalyst solution is sprayed on wall, under the irradiation of light, although can be more using in sunlight
Spectral region, but after excessive hydroxyl is in conjunction with metal ion, it may appear that precipitating.Precipitation capacity is excessive, and metal ion is then
The complex centre of electron-hole pair in entire photocatalyst can be become, so that electron-hole pair not redisperse, light-catalysed efficiency
The case where will appear decline instead.So the method for addition metal ion is only capable of the of short duration model for expanding photocatalyst and receiving spectrum
It encloses, after accumulation to be precipitated, the compound of electron-hole pair can be promoted instead, the photocatalysis effect of photocatalyst can still weaken.
The present invention is doped with superoxide ion when preparing solution into colloidal solution, and superoxide ion can be two as anion
Lacking oxygen is introduced in titanium oxide, or part thereof Lacking oxygen replaced by anion, so can effectively avoid titanium dioxide hollow cave-electricity
Sub is compound.It can be obtained by the principles of chemistry, oxygen has multiple tracks, and wherein energy level connects with its energy in the 2p track and anion of oxygen
After close p orbital hybridization, the band gap between the forbidden band of titanium dioxide may make to narrow, so as to widen the response model of its radiant light
It encloses, reinforces the absorption to irradiation light, the utilization so as to improve photocatalyst product to irradiation light improves the activity of titanium dioxide.
For addition metal ion, superoxide anion will not precipitate in the solution, and take occupy-place or introduce Lacking oxygen
Method can effectively avoid the compound of electron-hole pair.
Further, the principle of photocatalyst product degradation is that electron-hole pair can give birth in conjunction with water and oxygen in air
At the very strong hydroxyl free radical of oxidisability and Superoxide anion free radical, the pollutant in the two and air reacts, to it
Degradation, but because electron-hole pair is easy to that compound, the hydroxyl free radical and Superoxide anion free radical finally generated occurs
Be it is a small amount of, it is very low for leading to the degradation capability of traditional photocatalyst product.The present invention is added super directly in colloidal solution
Oxonium ion reagent, superoxide ion can be reacted with the hydrogen ion in solution generates hydrop free radical, and hydrop is free
Base can resolve into the hydroxyl radical free radical with strong oxdiative power under the action of illumination, and organic matter is decomposed to form by hydroxyl radical free radical again
Carbon dioxide, water and other inorganic small molecules.So superoxide ion can not only effectively avoid the compound of electron-hole pair,
Absorption of the photocatalyst product to irradiation light is improved, and a large amount of hydroxyl radical free radical with strong oxidizing property can be generated, further
Improve photocatalyst product to the degradation capability of pollutant.
Further, nano material is dispersed in aqueous, generally can is in colloid emulsion state, is easy to agglomerate, be
It avoids coacervation of colloid, all colloid emulsion can be consolidated using dispersing agent, it is avoided to reunite.But solution standing time compared with
Long afterwards, dispersing agent can reduce its active force, still can reunite between colloid, this is also that many photocatalyst products can not be in cream
The reason of forming complete coating on shellac varnish metope.The present invention carries out the microwave radiation of high frequency, low-power, microwave spoke to colloidal solution
Intermolecular active force can effectively be changed by penetrating, and be dispersed to it, so that photocatalyst becomes the lesser particle of partial size, it is intermolecular
It connects more stable, reduces the hard aggregation of photocatalyst.Even if the not auxiliary of dispersing agent, colloidal solution will not be sent out after irradiation
It is raw to reunite, it ensure that the film forming of photocatalyst product.
The solution made is after being sprayed on emulsion paint metope, due to its stable reference state free radical, between ion
It in conjunction with very closely, will not react with the metope for being coated with emulsion paint, coated film can be formed in metope rapidly, so that external irradiation
Light can be irradiated on the coating, so that photocatalyst is capable of the reception illumination of maximum area, and to the pollution in air
Object is degraded, and after film forming, because any variation will not occur for photocatalyst itself, wall can be effectively protected
Face, so that metope will not turn to be yellow because of the reason of external irradiation.
In the following, using 4 groups of reference examples and implementing to better illustrate the effect of the present embodiment and traditional photocatalyst product
Example is made comparisons, and respectively by the solution spray attachment of embodiment and reference examples on the emulsion paint system experiment metope of 6m2 size, measurement is real
Example and reference examples are applied using formaldehyde in air and the content of benzene homologues in experimental room where metope after 72h, and observes and continues
The color difference of illumination metope after a week (experimental room size is 2x3x3m).
Reference examples 1: superoxide ion reagent is added without in colloidal solution；Other steps are identical as embodiment, herein no longer
It repeats.
Reference examples 2: microwave radiation is not carried out to colloidal solution；Other steps are identical as embodiment, repeat no more herein.
Reference examples 3: after carrying out step 3, dispersing agent is added into colloidal solution, without microwave radiation；Other steps
Suddenly identical as embodiment, it repeats no more herein.
Reference examples 4: after carrying out step 2, dispersing agent being added into colloidal solution, without microwave radiation and super oxygen from
The addition of sub- reagent；Other steps are identical as embodiment, repeat no more herein.
Experimental method:
One, content of formaldehyde measures:
1. prepared by laboratory sample:
Respectively using the solution made in embodiment, reference examples 1 ~ 4 as laboratory sample；
2. instrument:
Instrument: Formaldehyde analyzer (INTERSCAN company, the U.S., 4160-19.99m type).
3. sampling processing:
It when sampling, will be closed by door and window in the room where sampling metope, sampled point is greater than 0.5m, relative altitude with a distance from wall
Between 0.5-1.5m.Formaldehyde analyzer is connected on white sampling handle with the crimp tube of plastic nut, crimp tube is another
End is connected to the air inlet at the instrument back side, and sampling handle is directed toward tested region, measurement result can be read after numerical stability.
Two, benzene homologues assay:
1. prepared by laboratory sample:
Respectively using the solution made in embodiment, reference examples 1 ~ 4 as laboratory sample；
2. instrument:
Instrument: gas chromatograph；Capillary column；Fixer be polyethylene glycol (PEG-20M), 30mX0.32mm, 1.00 μm of film thickness
Or equivalent capillary column；Oil-free sampling pump;Active carbon sampling pipe, inside are equipped with the active carbon of two sections of speciality of A, B, and A sections are sampling
Section, B sections are instruction section；Thermometer；Barometer；Microsyringe, 1 ~ 5 μ l；1ml pipette；5ml ground tool plug test tube.
3. sample treatment:
In sampling room, it sampling pipe will be connect with oil-free sampling pump always, and adjust oil-free sampling pump discharge, the only conduct of this sampling pipe
It adjusts flow to use, is not used as sampling analysis；The both ends for prying open active carbon sampling pipe again, connect that (A sections enter for gas with sampler
Mouthful), with the flow gas production 1-2h of 0.2 ~ 0.6L/min；Before sampling terminates, sampling flow is recorded, removes sampling pipe, and with poly- four
The both ends of vinyl fluoride cap closure active carbon sampling pipe, are protected from light closed preservation, and measurement in 8h at room temperature；By active carbon sampling pipe
Middle A sections and B sections taking-up, is respectively put into ground tool plug test tube, 1ml carbon disulfide is respectively added in each test tube, closed, in room temperature
After lower 1h, takes the 1 μ L of solution in different test tubes to be injected into gas chromatograph injection port respectively, analyzed.
Three, result:
It can be illustrated by above-mentioned experimental result, the addition of superoxide ion can effectively improve photocatalyst product to pollutants in air
Degradation, reduce the pollutants such as toluene in air；And microwave radiation is carried out to solution in preparation, photocatalyst product can be made
Complete coating is formed on metope, to protect metope colour-fast under long-term illumination, makes its color that difference not occur.
The superoxide ion reagent in the kit of the macro wise biological reagent consumptive material purchase in Nanjing by obtaining；The nanometer two
Its partial size of titanium oxide is 3-5nm, is bought in Beijing Deco Dao Jin Science and Technology Ltd.；The adjustable microwave oscillator purchase is in depth
Zhen Shi Ling Han electric wire Science and Technology Ltd.；Waveguide purchase is newly navigated microwave source producer in Henan；Experiment is purchased with closed box
It buys in Changsha Tian Chuan powder technology Co., Ltd.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (4)
1. a kind of preparation method of emulsion paint metope photoactivation coating, it is characterised in that: preparing raw material includes nanometer titanium dioxide
Titanium, superoxide ion reagent and ultrapure water, preparation step are as follows:
(1) ultrapure water is poured into culture cup, then nano-titanium dioxide is added in culture cup, and when being added in cup
Solution is vigorously stirred, so that nano-titanium dioxide and ultrapure water form colloidal solution；
(2) colloidal solution after stirring is stood into 10min, and whether observe in cup has precipitating to occur；If being precipitated in cup,
Continue to be stirred colloidal solution 10min, and carry out standing 10min again, until occurring just carrying out down without precipitating after standing
One operating procedure；
(3) superoxide ion reagent is injected into the colloidal solution after stirring by injection-tube；
(4) mixed colloidal solution is placed in closed box, closed box is equipped with microwave radiation device, with the colloid to its inside
Solution carries out comprehensive microwave radiation；
(5) it by the solution left standstill 10-20min after radiation, can bottle.
2. a kind of preparation method of emulsion paint metope photoactivation coating according to claim 1, it is characterised in that: described
Microwave irradiation time is 1.5h-2h.
3. a kind of preparation method of emulsion paint metope photoactivation coating according to claim 1, it is characterised in that: described
The partial size of nano-titanium dioxide is 3-5nm.
4. a kind of preparation method of emulsion paint metope photoactivation coating according to claim 1, it is characterised in that: described
Microwave radiation device is made of high frequency, the adjustable microwave oscillator of low-power and waveguide, and it is micro- in progress to can avoid colloidal solution
Own temperature can improve when wave radiation.
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101073768A (en) * | 2007-06-11 | 2007-11-21 | 大连海事大学 | Method for filming titanic oxide light-catalysed thin film at low-temperature |
| CN101337181A (en) * | 2008-08-15 | 2009-01-07 | 济南大学 | Preparation method of purificant in nano titanic oxide photochemical catalyst chamber |
| CN101757899A (en) * | 2008-11-18 | 2010-06-30 | 熊长宏 | Preparation method of nanometer titania photochemical catalyst |
| CN102127348A (en) * | 2010-12-31 | 2011-07-20 | 东莞市明天纳米科技有限公司 | Preparation method of nanometer titanium dioxide photo catalytic air purifying coating |
| CN103468042A (en) * | 2013-09-29 | 2013-12-25 | 杨奠基 | Interior wall latex paint with anion releasing function, far infrared function and formaldehyde removing function and preparing method thereof |
| CN104338522A (en) * | 2013-08-01 | 2015-02-11 | 京程科技股份有限公司 | Preparing method of titanium dioxide sol photocatalyst and applications of the titanium dioxide sol photocatalyst in decontamination and self-cleaning |
| CN104696933A (en) * | 2013-12-04 | 2015-06-10 | 上海汇轶环保科技有限公司 | Novel anion photocatalyst energy-saving lamp |
| CN104893470A (en) * | 2015-06-05 | 2015-09-09 | 宁波健利康生物研究科技有限公司 | Environmental-friendly coating and preparation technology thereof |
| CN105086733A (en) * | 2015-09-01 | 2015-11-25 | 天长市开林化工有限公司 | Health latex paint capable of releasing negative ions and with healthcare effect and preparation method for health latex paint |
| CN105778599A (en) * | 2016-03-15 | 2016-07-20 | 江苏纳科思科技发展有限公司 | Production method of self-cleaning nan-coatings capable of exciting photocatalysts in visible light |
| CN106433356A (en) * | 2016-11-17 | 2017-02-22 | 重庆文理学院 | Inner wall nano-paint for purifying formaldehyde by visible light catalysis |
| CN107601558A (en) * | 2017-10-25 | 2018-01-19 | 广西科技大学 | A kind of method that microwave heating prepares nano titanium oxide |
| CN109603524A (en) * | 2018-12-27 | 2019-04-12 | 秦皇岛威曼斯环保工程集团有限公司 | A kind of negative oxygen ion photocatalyst Formaldehyde decomposition liquid and preparation method thereof |
-
2019
- 2019-07-30 CN CN201910696746.3A patent/CN110496649A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101073768A (en) * | 2007-06-11 | 2007-11-21 | 大连海事大学 | Method for filming titanic oxide light-catalysed thin film at low-temperature |
| CN101337181A (en) * | 2008-08-15 | 2009-01-07 | 济南大学 | Preparation method of purificant in nano titanic oxide photochemical catalyst chamber |
| CN101757899A (en) * | 2008-11-18 | 2010-06-30 | 熊长宏 | Preparation method of nanometer titania photochemical catalyst |
| CN102127348A (en) * | 2010-12-31 | 2011-07-20 | 东莞市明天纳米科技有限公司 | Preparation method of nanometer titanium dioxide photo catalytic air purifying coating |
| CN104338522A (en) * | 2013-08-01 | 2015-02-11 | 京程科技股份有限公司 | Preparing method of titanium dioxide sol photocatalyst and applications of the titanium dioxide sol photocatalyst in decontamination and self-cleaning |
| CN103468042A (en) * | 2013-09-29 | 2013-12-25 | 杨奠基 | Interior wall latex paint with anion releasing function, far infrared function and formaldehyde removing function and preparing method thereof |
| CN104696933A (en) * | 2013-12-04 | 2015-06-10 | 上海汇轶环保科技有限公司 | Novel anion photocatalyst energy-saving lamp |
| CN104893470A (en) * | 2015-06-05 | 2015-09-09 | 宁波健利康生物研究科技有限公司 | Environmental-friendly coating and preparation technology thereof |
| CN105086733A (en) * | 2015-09-01 | 2015-11-25 | 天长市开林化工有限公司 | Health latex paint capable of releasing negative ions and with healthcare effect and preparation method for health latex paint |
| CN105778599A (en) * | 2016-03-15 | 2016-07-20 | 江苏纳科思科技发展有限公司 | Production method of self-cleaning nan-coatings capable of exciting photocatalysts in visible light |
| CN106433356A (en) * | 2016-11-17 | 2017-02-22 | 重庆文理学院 | Inner wall nano-paint for purifying formaldehyde by visible light catalysis |
| CN107601558A (en) * | 2017-10-25 | 2018-01-19 | 广西科技大学 | A kind of method that microwave heating prepares nano titanium oxide |
| CN109603524A (en) * | 2018-12-27 | 2019-04-12 | 秦皇岛威曼斯环保工程集团有限公司 | A kind of negative oxygen ion photocatalyst Formaldehyde decomposition liquid and preparation method thereof |
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Application publication date: 20191126 |