CN110193283A - A kind of full spectrum light catalytic air purification liquid and preparation method thereof - Google Patents
A kind of full spectrum light catalytic air purification liquid and preparation method thereof Download PDFInfo
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- CN110193283A CN110193283A CN201910404178.5A CN201910404178A CN110193283A CN 110193283 A CN110193283 A CN 110193283A CN 201910404178 A CN201910404178 A CN 201910404178A CN 110193283 A CN110193283 A CN 110193283A
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- oxide
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- air purification
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- 239000007788 liquid Substances 0.000 title claims abstract description 41
- 238000001228 spectrum Methods 0.000 title claims abstract description 28
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 27
- 238000004887 air purification Methods 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000006185 dispersion Substances 0.000 claims abstract description 35
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 30
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 22
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910001930 tungsten oxide Inorganic materials 0.000 claims abstract description 21
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000003756 stirring Methods 0.000 claims abstract description 17
- 239000005751 Copper oxide Substances 0.000 claims abstract description 16
- 229910000431 copper oxide Inorganic materials 0.000 claims abstract description 16
- 239000011941 photocatalyst Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000003381 stabilizer Substances 0.000 claims abstract description 10
- 239000008367 deionised water Substances 0.000 claims abstract description 9
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 9
- 238000003801 milling Methods 0.000 claims abstract description 5
- 239000003002 pH adjusting agent Substances 0.000 claims abstract description 5
- 239000004576 sand Substances 0.000 claims abstract description 5
- 239000003054 catalyst Substances 0.000 claims description 25
- 229960004643 cupric oxide Drugs 0.000 claims description 17
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 14
- 239000002002 slurry Substances 0.000 claims description 8
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 7
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 7
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 230000002378 acidificating effect Effects 0.000 claims description 4
- 239000003607 modifier Substances 0.000 claims description 4
- 238000002604 ultrasonography Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 2
- 239000004115 Sodium Silicate Substances 0.000 claims description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 2
- 239000000908 ammonium hydroxide Substances 0.000 claims description 2
- 239000004202 carbamide Substances 0.000 claims description 2
- 239000002270 dispersing agent Substances 0.000 claims description 2
- 239000000428 dust Substances 0.000 claims description 2
- 238000005360 mashing Methods 0.000 claims description 2
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 2
- 235000019795 sodium metasilicate Nutrition 0.000 claims description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 2
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 claims 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims 1
- MZSDGDXXBZSFTG-UHFFFAOYSA-M sodium;benzenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C1=CC=CC=C1 MZSDGDXXBZSFTG-UHFFFAOYSA-M 0.000 claims 1
- 230000001699 photocatalysis Effects 0.000 abstract description 25
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract description 15
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract description 11
- 230000003647 oxidation Effects 0.000 abstract description 11
- 238000007254 oxidation reaction Methods 0.000 abstract description 11
- 239000000725 suspension Substances 0.000 abstract description 11
- 238000007146 photocatalysis Methods 0.000 abstract description 10
- 238000004140 cleaning Methods 0.000 abstract description 6
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 230000002000 scavenging effect Effects 0.000 description 16
- 239000003795 chemical substances by application Substances 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 7
- 239000011268 mixed slurry Substances 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000000746 purification Methods 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 5
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- KEQXNNJHMWSZHK-UHFFFAOYSA-L 1,3,2,4$l^{2}-dioxathiaplumbetane 2,2-dioxide Chemical compound [Pb+2].[O-]S([O-])(=O)=O KEQXNNJHMWSZHK-UHFFFAOYSA-L 0.000 description 1
- WBIQQQGBSDOWNP-UHFFFAOYSA-N 2-dodecylbenzenesulfonic acid Chemical compound CCCCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O WBIQQQGBSDOWNP-UHFFFAOYSA-N 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- -1 Sodium alkyl benzene Chemical class 0.000 description 1
- 230000032900 absorption of visible light Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229940077388 benzenesulfonate Drugs 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000002508 compound effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229940060296 dodecylbenzenesulfonic acid Drugs 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 239000006194 liquid suspension Substances 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
- 238000002156 mixing Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000005829 trimerization reaction Methods 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- 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
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/888—Tungsten
-
- 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
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/80—Type of catalytic reaction
- B01D2255/802—Photocatalytic
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Catalysts (AREA)
Abstract
The present invention relates to a kind of full spectrum light catalytic air purification liquid and preparation method thereof, by recipe requirements, tungsten oxide, copper oxide, iron oxide and titanium oxide are beaten with deionized water first and are uniformly mixed, dispersion stabilizer is added to stir evenly, pH adjusting agent adjustment pH is added within the scope of 5-8, through the dispersion means such as sand milling or high speed dispersion, stable suspension is formed, the full spectrum light catalytic air purification liquid of stably dispersing is made.The visible and ultraviolet light of full spectrum of the photocatalysis air-cleaning liquid energy absorbing wavelength less than 730nm of the application preparation, and appearance color is white or linen photocatalyst dispersion liquid.For full spectrum light catalytic air purification liquid of the invention using safe, suspension stability is good, the performance under ultraviolet lamp, headlamp and sunlight all with pollutants such as excellent formaldehyde degradation by photocatalytic oxidation process, toluene.
Description
Technical field
The present invention relates to technical field of air purification, specifically, be a kind of full spectrum light catalytic air purification liquid and its
Preparation method.
Background technique
Photocatalysis is tempting air purifying process, and theoretically the technology there is the purification of broad spectrum activity to make various pollutants
With, and the harmless non-toxic inorganic small molecule such as can be mineralized into carbon dioxide and water.But current two for studying and applying extensively of activation
Titania based photochemical catalyst, needs ultraviolet light, is restricted applied to indoor air purification.The single light that can absorb visible light
On the one hand catalyst from principle, due to absorbing the visible light of certain wave band in colourless sunlight, is generally understood display color, is sprayed
Contamination phenomenon can be brought when being coated in body surface；On the other hand the cut-off for being only less than the photochemical catalyst to the absorption of visible light is inhaled
The light for receiving wavelength, as tungsten oxide can only light of the absorbing wavelength less than about 459nm；In addition, generally since forbidden bandwidth narrows, it is empty
The oxidability in cave declines, and carrier is relatively easy to compound, and photo-quantum efficiency is caused to reduce.
The application for defect existing for current photochemical catalyst, using tungsten oxide (absorb optical wavelength and be approximately less than 459nm),
Copper oxide (absorb optical wavelength and be approximately less than 729nm), iron oxide (absorb optical wavelength and be approximately less than 577nm), titanium oxide (absorb light
Wave wavelength is approximately less than 388nm) four kinds of nano-photocatalysts are compound, it may be implemented to the almost full spectrum of the light lower than 729nm
It is absorbed and utilized, therefore can realize the photocatalysis of indoor pollutant under the extensive illumination condition such as sunlight, headlamp, ultraviolet lamp
Purification process.And by the ratio for adjusting four kinds of oxidation photocatalysts, so that white or greyish white is presented in photocatalysis suspension
The color of color is sprayed on behind object (such as furniture, wall) surface the contamination that will not cause on visual angle.Four kinds of oxidation object lights are urged
Agent is under the action of dispersion stabilizer, through means such as sand milling, ultrasound, high speed dispersions, obtained composite photo-catalyst scavenging solution
In, there are heterojunction structures between different photocatalytic oxides, it is suppressed that carrier it is compound, significantly improve light quantum effect
Rate significantly improves photocatalysis efficiency.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of full spectrum light catalytic air purification liquid and its
Preparation method.By the allotment of tungsten oxide, four kinds of copper oxide, iron oxide and titanium oxide nano-photocatalysts, both realized in wavelength
Lower than the efficient light absorption and photocatalysis air-cleaning process of the full spectrum of 729nm, and it can make scavenging solution that there is white and canescence
" clean " effect.
The purpose of the present invention is achieved through the following technical solutions:
A kind of full spectrum light catalytic air purification liquid, includes following component according to 100 parts by weight:
Tungsten oxide, copper oxide, iron oxide and the titanium oxide is all high-activity nano photochemical catalyst, has excellent light
Catalytic activity, while there is excellent water dispersible.
Tungsten oxide is the good nanometer tungsten oxide photochemical catalyst of water dispersible, and partial size is at 2-50 nanometers.
Copper oxide is the good nano cupric oxide photochemical catalyst of water dispersible, and partial size is at 2-40 nanometers.
Iron oxide is the good nano iron oxide photochemical catalyst of water dispersible, and partial size is at 1-35 nanometers.
Titanium oxide is the good nano titanium oxide photocatalyst of water dispersible, and partial size is at 2-60 nanometers.
The proportion of the tungsten oxide, four kinds of copper oxide, iron oxide and titanium oxide nano-photocatalysts, can be according to application
Illumination condition be adjusted in the case where meeting final products and white or linen requirement being presented.
The dispersion stabilizer is aqueous dispersion, is good oxide dispersing agent, is selected from calgon, trimerization
One of sodium phosphate, sodium metasilicate, neopelex or composition.
The pH adjusting agent be the alkaline pH adjusting agent sodium hydroxide that can improve pH value, ammonium hydroxide, urea, in sodium bicarbonate
One kind or composition, or one of the acidic ph modifier dust technology of pH value, dilute hydrochloric acid, acetic acid, citric acid can be reduced or
Composition.Since the dispersion stabilizer that the type selecting of oxide is different and selects is different, by tungsten oxide, copper oxide, iron oxide, oxygen
The slurry pH that change titanium and dispersion stabilizer are mixed to get also can be different, according to the pH of the slurry, alkalinity or acid pH selected to adjust
Agent adjusts slurry pH between 5-8.
A kind of preparation method of full spectrum light catalytic air purification liquid, the specific steps are that:
(1) recipe requirements are pressed, in deionized water, tungsten oxide, copper oxide, iron oxide and titanium oxide, mashing mixing are added
Uniformly；
(2) dispersion stabilizer is added slowly with stirring in the slurry of above-mentioned mixed oxide, is stirred evenly；
(3) according to the pH value of mixed oxide slurry in (2), being added slowly with stirring alkalinity or acidic ph modifier makes
The pH of mixed slurry is between 5-8；
(4) through the methods of sand milling, ultrasound, high speed dispersion, dispersion obtains the full spectrum light catalytic air purification of stably dispersing
Liquid.
Compared with prior art, the positive effect of the present invention is:
The distinguishing feature of the full spectrum light catalytic air purification liquid of the application is: it is almost complete to be less than 729nm in wavelength
The optical range of spectrum has light catalytic purifying effect.It can be adapted for sunlight, various headlamps and ultraviolet lamp, greatly expand
The application range of existing photochemical catalyst.
A kind of distinguishing feature of full spectrum light catalytic air purification liquid of the application is: by adjusting four kinds of oxidation object lights
The proportion of catalyst is applied to the environment such as the inhabitation such as furniture and wall, office so that white or canescence is presented in final products,
It does not stain, has the characteristics that " clean " on visual angle, and general really effective single visible-light photocatalyst is that have face
Color, when paint application, is limited by very big visual requirement.
A kind of distinguishing feature of full spectrum light catalytic air purification liquid of the application is: by four kinds of oxidation photocatalysts
Under the action of dispersion stabilizer, through means such as sand milling, ultrasound, high speed dispersions, in obtained composite photo-catalyst scavenging solution, no
With between photocatalytic oxide, there are heterojunction structures, it is suppressed that carrier it is compound, significantly improve photo-quantum efficiency, i.e., it is aobvious
Work improves photocatalysis efficiency.
Specific embodiment
A kind of specific embodiment of full spectrum light catalytic air purification liquid of the present invention presented below and preparation method thereof.
Embodiment
In the deionized water of 89 parts by weight, being separately added into 5 parts by weight average grain diameters is that (laser particle size method D50 is cut 12nm
Only absorbing wavelength is 452nm) tungsten oxide photcatalyst, 1 parts by weight average grain diameter be 16nm (laser particle size method D50, cut-off absorption
Wavelength is 726nm) copper oxide photochemical catalyst, 1.5 parts by weight average grain diameters be 8nm (laser particle size method D50, cut-off absorption wavelength
It is that (laser particle size method D50, cut-off absorption wavelength are 20nm for 569nm) iron oxide photocatalyst, 2 parts by weight average grain diameters
381nm) titania photocatalyst, stirring to pulp are uniformly mixed；0.5 parts by weight sodium tripolyphosphate and 0.5 parts by weight 12 is added
Sodium alkyl benzene sulfonate is uniformly mixed, and obtains the mixed slurry that pH is 4.5；It is slowly added to 0.5 parts by weight carbonic acid while stirring
Hydrogen sodium；Dispersed 2 hours using high speed dispersion agent, obtains the photocatalysis air-cleaning liquid dispersion liquid that the pH of stably dispersing is 6.5, only
Change liquid is white suspension.
The nano-oxide photochemical catalyst that following reference examples use is consistent with previous embodiment.
Reference examples 1
In the deionized water of 89.9 parts by weight, it is separately added into 6 parts by weight tungsten oxide photcatalysts, the oxidation of 2.5 parts by weight
Titanium photochemical catalyst, stirring to pulp are uniformly mixed；0.5 parts by weight sodium tripolyphosphate and 0.5 parts by weight dodecyl benzene sulfonic acid is added
Sodium is uniformly mixed, and obtains the mixed slurry that pH is 4.3；It is slowly added to 0.6 parts by weight sodium bicarbonate while stirring；Using
High speed dispersion agent is dispersed 2 hours, and the photocatalysis air-cleaning liquid dispersion liquid that the pH of stably dispersing is 6.6 is obtained.Scavenging solution is general
Yellow milk-white coloured suspension.
Reference examples 2
In the deionized water of 89.3 parts by weight, it is separately added into 6 parts by weight tungsten oxide photcatalysts, the oxidation of 0.8 parts by weight
Bronzing catalyst, 2.5 parts by weight of titanium oxide photochemical catalysts, stirring to pulp are uniformly mixed；Be added 0.5 parts by weight sodium tripolyphosphate and
0.5 parts by weight neopelex, is uniformly mixed, and obtains the mixed slurry that pH is 4.7；It is slowly added to while stirring
0.4 parts by weight sodium bicarbonate；Dispersed 2 hours using high speed dispersion agent, the photocatalytic air that the pH for obtaining stably dispersing is 6.5 is net
Change liquid dispersion liquid.Scavenging solution is blue suspension.
Reference examples 3
In the deionized water of 89.2 parts by weight, it is separately added into 5.5 parts by weight tungsten oxide photcatalysts, the oxidation of 2 parts by weight
Iron photochemical catalyst, 1.8 parts by weight of titanium oxide photochemical catalysts, stirring to pulp are uniformly mixed；Be added 0.5 parts by weight sodium tripolyphosphate and
0.5 parts by weight neopelex, is uniformly mixed, and obtains the mixed slurry that pH is 4.6；It is slowly added to while stirring
0.5 parts by weight sodium bicarbonate；Dispersed 2 hours using high speed dispersion agent, the photocatalytic air that the pH for obtaining stably dispersing is 6.5 is net
Change liquid dispersion liquid.Scavenging solution is orange red suspension.
Reference examples 4
In the deionized water of 89.7 parts by weight, it is separately added into 6 parts by weight tungsten oxide photcatalysts, the oxidation of 1.6 parts by weight
Iron photochemical catalyst, 1.2 parts by weight copper oxide photochemical catalysts, stirring to pulp are uniformly mixed；Be added 0.5 parts by weight sodium tripolyphosphate and
0.5 parts by weight neopelex, is uniformly mixed, and obtains the mixed slurry that pH is 4.5；It is slowly added to while stirring
0.5 parts by weight sodium bicarbonate；Dispersed 2 hours using high speed dispersion agent, the photocatalytic air that the pH for obtaining stably dispersing is 6.5 is net
Change liquid dispersion liquid.Scavenging solution is canescence suspension.
Reference examples 5
In the deionized water of 89.2 parts by weight, it is separately added into 1.3 parts by weight copper oxide photochemical catalysts, the oxidation of 2 parts by weight
Iron photochemical catalyst, 4.8 parts by weight of titanium oxide photochemical catalysts, stirring to pulp are uniformly mixed；Be added 0.5 parts by weight sodium tripolyphosphate and
0.5 parts by weight neopelex, is uniformly mixed, and obtains the mixed slurry that pH is 4.5；It is slowly added to while stirring
0.5 parts by weight sodium bicarbonate；Dispersed 2 hours using high speed dispersion agent, the photocatalytic air that the pH for obtaining stably dispersing is 6.4 is net
Change liquid dispersion liquid.Scavenging solution is canescence suspension.
Full spectrum light catalytic air purification liquid formaldehyde, the detection test of toluene purifying property:
Sensing chamber is two 1300 × 900 × 1100mm (length × width × height) built by glass plate and aluminum alloy framework
Laboratory Module, built-in small fan install 2 watts of energy-saving lamps at the top of Laboratory Module, are divided into experimental group first and control group second；It, will when detection
The scavenging solution of preparation is sprayed on the two sides of two pieces of 500 × 500mm glass plates, and it is diagonal that airing is placed on detection cabin, glass plate and ground
Face is in 45 °, and two blocks of blank glass plates for not spraying scavenging solution are placed in second sensing chamber, close sealing detection cabin.Temperature in control cabinet
It is 25 ± 1 DEG C, injects formalin into two Laboratory Modules of first, second with micro syringe and toluene passes through sky after 24 hours
The sampling of gas sampler, then with the concentration of acetylacetone,2,4-pentanedione Spectrophotometric Determination Method of Formaldehyde.It is referring in terms of by the blank value of second sensing chamber
Calculate the purification efficiency of formaldehyde.The analysis of toluene is carried out with 1.0 milliliters of syringe samplings with gas chromatography directly from Laboratory Module,
It is referring to the purification efficiency for calculating toluene with the blank value of second sensing chamber.
1 scavenging solution performance of table compares
Wherein, stability of suspension refers to that well scavenging solution stands one month and has no that obvious sediment, stability difference refer to purification
Liquid, which stands one month, obvious sediment generation.
By the dispersion stabilization in table it is found that by selecting suitable dispersion stabilizer, control pH appropriate and using suitable
When the methods of dispersion means, the nanometer photocatalytic purification liquid suspensions system of stably dispersing can be prepared.Also by data in table 1
It can be seen that although the paler colour of reference examples 1, reference examples 1 to reference examples 3 because be not by tungsten oxide of the invention, copper oxide,
Four kinds of nano-photocatalysts of iron oxide and titanium oxide are combined, thus all display colors, when this scavenging solution is sprayed on light color
When furniture and metope, contamination is necessarily brought；Although canescence, meeting after spraying is dry is presented in reference examples 4 and 5 suspension of reference examples
There are various coloured speckles, illustrate if not using the present invention claims four kinds of oxides deployed, i.e., it is enabled obtain it is close
The scavenging solution of white (such as canescence), but there is color separation after spraying drying as a result, showing the spot of various colors；And embodiment
Middle air cleaning liquid of the invention is white, so being " clean " when spraying.Philips's LED light of use, although having seldom
The ultraviolet of amount, feux rouges and infrared light, but main emission wavelength, in 437-616nm, main light emission area is located at the region of 550-650nm.
Reference examples 1 are the compound of tungsten oxide and titanium oxide, and cut-off absorption wavelength is lower than 452nm, not in the main uptake zone of experiment lamp
It is interior, therefore photocatalytic activity is very low；The cut-off absorption wavelength of reference examples 2 is lower than 726nm, covers the main uptake zone of experiment lamp,
Show high light catalytic activity, the cut-off absorption wavelength of reference examples 3 is lower than 569nm, has been overlapped most of main suction of experiment lamp
Receive area, it may have higher photocatalytic activity, reference examples 4 and 5 are simultaneously containing the copper oxide for covering the main uptake zone of experiment lamp
And titanium oxide, show high photocatalytic activity.Only when using tungsten oxide of the invention, copper oxide, iron oxide and titanium oxide
When four kinds of nano-photocatalyst complex techniques, photocatalytic activity is significantly improved, with excellent air cleaning activity.
Laboratory photocatalytic activity test result shows the photocatalytic activity difference of embodiment scavenging solution under simulated solar
It is 3.2 times and 4.7 times of reference examples 4 and reference examples 5, this is further illustrated in entire sunlight area (full spectral regions), the present invention
Scavenging solution shows more excellent photocatalytic activity, this is primarily due to the collaboration of four kinds of oxidation photocatalysts of the invention
Full spectral absorption light ability, and reached heterojunction structure when use preparation method of the invention, inhibit current-carrying to have
The compound effect of son, significantly improves photocatalysis efficiency.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member, without departing from the inventive concept of the premise, can also make several improvements and modifications, these improvements and modifications also should be regarded as
In protection scope of the present invention.
Claims (8)
1. a kind of full spectrum light catalytic air purification liquid, which is characterized in that according to 100 parts by weight include following component:
2. a kind of full spectrum light catalytic air purification liquid as described in claim 1, which is characterized in that tungsten oxide is water dispersible
Good nanometer tungsten oxide photochemical catalyst, partial size is at 2-50 nanometers.
3. a kind of full spectrum light catalytic air purification liquid as described in claim 1, which is characterized in that copper oxide is water dispersible
Good nano cupric oxide photochemical catalyst, partial size is at 2-40 nanometers.
4. a kind of full spectrum light catalytic air purification liquid as described in claim 1, which is characterized in that iron oxide is water dispersible
Good nano iron oxide photochemical catalyst, partial size is at 1-35 nanometers.
5. a kind of full spectrum light catalytic air purification liquid as described in claim 1, which is characterized in that titanium oxide is water dispersible
Good nano titanium oxide photocatalyst, partial size is at 2-60 nanometers.
6. a kind of full spectrum light catalytic air purification liquid as described in claim 1, which is characterized in that the dispersion stabilizer
It is good oxide dispersing agent for aqueous dispersion, is selected from calgon, sodium tripolyphosphate, sodium metasilicate, dodecyl
One of benzene sulfonic acid sodium salt or composition.
7. a kind of full spectrum light catalytic air purification liquid as described in claim 1, which is characterized in that the pH adjusting agent is
One of the alkaline pH adjusting agent sodium hydroxide of pH value, ammonium hydroxide, urea, sodium bicarbonate or composition can be improved, or can be reduced
One of the acidic ph modifier dust technology of pH value, dilute hydrochloric acid, acetic acid, citric acid or composition.
8. a kind of preparation method of full spectrum light catalytic air purification liquid as described in claim 1, the specific steps are that:
(1) recipe requirements are pressed, in deionized water, tungsten oxide, copper oxide, iron oxide and titanium oxide are added, mashing is uniformly mixed；
(2) dispersion stabilizer is added slowly with stirring in the slurry of above-mentioned mixed oxide, is stirred evenly；
(3) according to the pH value of mixed oxide slurry in (2), being added slowly with stirring alkalinity or acidic ph modifier makes to mix
The pH of slurry is between 5-8；
(4) through the methods of sand milling, ultrasound, high speed dispersion, dispersion obtains the full spectrum light catalytic air purification liquid of stably dispersing.
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