CN1692982A - Nanometer catalyst for used under sunlight and its prepn. method - Google Patents
Nanometer catalyst for used under sunlight and its prepn. method Download PDFInfo
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- CN1692982A CN1692982A CN 200510042115 CN200510042115A CN1692982A CN 1692982 A CN1692982 A CN 1692982A CN 200510042115 CN200510042115 CN 200510042115 CN 200510042115 A CN200510042115 A CN 200510042115A CN 1692982 A CN1692982 A CN 1692982A
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- film
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- out light
- catalytic
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Links
- 238000000034 method Methods 0.000 title claims description 9
- 239000003054 catalyst Substances 0.000 title 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052980 cadmium sulfide Inorganic materials 0.000 claims abstract description 9
- 239000011521 glass Substances 0.000 claims abstract description 7
- WUPHOULIZUERAE-UHFFFAOYSA-N 3-(oxolan-2-yl)propanoic acid Chemical compound OC(=O)CCC1CCCO1 WUPHOULIZUERAE-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000010408 film Substances 0.000 claims description 36
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 claims description 14
- 239000005357 flat glass Substances 0.000 claims description 12
- 238000005406 washing Methods 0.000 claims description 12
- 239000002202 Polyethylene glycol Substances 0.000 claims description 8
- 239000007864 aqueous solution Substances 0.000 claims description 8
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 8
- 239000004327 boric acid Substances 0.000 claims description 8
- NMGYKLMMQCTUGI-UHFFFAOYSA-J diazanium;titanium(4+);hexafluoride Chemical compound [NH4+].[NH4+].[F-].[F-].[F-].[F-].[F-].[F-].[Ti+4] NMGYKLMMQCTUGI-UHFFFAOYSA-J 0.000 claims description 8
- 229920001223 polyethylene glycol Polymers 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 7
- 230000001699 photocatalysis Effects 0.000 claims description 7
- 239000004408 titanium dioxide Substances 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 239000011799 hole material Substances 0.000 claims description 5
- 239000010409 thin film Substances 0.000 claims description 5
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 4
- 239000012153 distilled water Substances 0.000 claims description 4
- 229910017604 nitric acid Inorganic materials 0.000 claims description 4
- 239000000376 reactant Substances 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 2
- 238000006555 catalytic reaction Methods 0.000 abstract description 4
- 238000000576 coating method Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 abstract description 2
- 239000002120 nanofilm Substances 0.000 abstract 1
- 229910052793 cadmium Inorganic materials 0.000 description 18
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 18
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 15
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 10
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 9
- 238000006303 photolysis reaction Methods 0.000 description 8
- 230000003197 catalytic effect Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 5
- 229910021529 ammonia Inorganic materials 0.000 description 5
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000007146 photocatalysis Methods 0.000 description 3
- 238000003916 acid precipitation Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 2
- 239000005348 self-cleaning glass Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 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 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 238000013032 photocatalytic reaction Methods 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001235 sensitizing effect Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- Catalysts (AREA)
Abstract
A catalyzing nanofilm able to play its catalysis role under sunlight is prepared from TiO2 as carrier and cadmium sulfide as active component through proportional mixing, coating it on glass, heating treating in tubular furnace, and maintaining the temp for 2 hr.
Description
(1) technical field
The present invention relates to a kind of nano-photo catalytic film that is used to purify air, be specifically related to a kind of light-catalysed nano-catalytic film and preparation method thereof that under sunshine, carries out.
(2) background technology
Preceding 20 years of 21 century was the critical period of international development nano material, and nanometer technology will be brought new opportunity to the every field development.Serious day by day along with environmental problem in the world wide, nano-photocatalyst material are widely studied and at present as novel environment-friendly materials.Self-cleaning glass as one of them branch is with titanium dioxide (TiO
2) be main body, adopt eco-friendly surface sensitizing technology, airborne greasy dirt and other harmful substance are realized that efficient pollution-free transforms.
Traditional self-cleaning glass is with coating TiO
2Single composition is main, because titanium dioxide (TiO
2) energy gap be 2ev, its photocatalysis characteristic is only limited to ultraviolet band, and the sunshine that is used for catalytic degradation mainly is distributed in the 0.25-2.5 mu m range, at this wave band ultraviolet light only about 2%, thereby titanium dioxide (TiO
2) directly to utilize sunshine to carry out the efficient of photocatalytic degradation lower, can't be with a wide range of applications.
In order to address this problem, people are once at TiO
2In utilize precious metal element, rare earth element etc. to carry out doping vario-property, wish to cause the red shift of ABSORPTION EDGE.Though obtain certain effect, light-catalyzed reaction still need be carried out under high-pressure sodium lamp or uviol lamp, can't fundamentally improve the efficient of titanium dioxide photocatalytic degradation under sunshine.
(3) summary of the invention
For solving the deficiency that prior art exists, the invention provides a kind of light-catalysed nano-catalytic film and preparation method thereof that under sunshine, carries out, this film can be by light-catalyzed reaction, common trace harmful gases in air is converted into harmless product, formaldehyde that can the human lives place is common, hydrogen sulfide, methyl mercaptan, ammonia etc. have the trace harmful gases of foul odour to be eliminated, to purify air.
The present invention realizes by following measure:
As carrier, is active component with the cadmium sulfide with titanium dioxide, coats laminated film at glass surface, and the mol ratio of titanium dioxide and cadmium sulfide is 45%; Laminated film is heat-treated under room temperature-450 ℃ in tube furnace, and 450 ℃ of following constant temperature 2 hours promptly.
Be coated with the pure TiO that a layer thickness is 28-34nm on the above-mentioned gained composite membrane surface again
2Film, and be coated with pure TiO
2Hole material polyethylene glycol or the trifluoroacetic acid that add 5% percentage by weight in the thin-film process.Titanium dioxide crystal form is the anatase type.
Under sunshine, carry out light-catalysed nano-catalytic film and preparation method thereof, comprise the steps:
(1) in the aqueous solution of the CdS solution that contains 0.1mol/L-0.2mol/L ammonium titanium fluoride and 0.3mol/L-0.5mol/L boric acid and 0.22mol/L-0.25mol/L, adds 0.5mgTiO
2Crystallite must react stoste after the stirring;
(2) will at room temperature leave standstill 5h-6h respectively through the vertical reactant liquor of putting into of sheet glass after rare nitric acid, absolute ethyl alcohol and the distilled water supersound washing of percentage by weight 5%, and take out the washing back and dry naturally;
(3) sheet glass after drying places tube furnace, heat-treats under room temperature-450 ℃, when reaching 450 ℃, 450 ℃ of following constant temperature 2 hours;
(4) sheet glass of handling well is put into the polyethylene glycol of 0.1mol/L-0.2mol/L ammonium titanium fluoride and 0.3mol/L-0.5mol/L boric acid and 5% percentage by weight or the aqueous solution of trifluoroacetic acid and left standstill 5h-6h, take out the washing back and dry naturally;
(5) sheet glass after drying places tube furnace, heat-treats under room temperature-450 ℃, when reaching 450 ℃, 450 ℃ of following constant temperature 2 hours, promptly obtains a kind of porous photocatalytic film of stable performance.
In order to reduce the stripping quantity of film surface cadmium, reduce the decay of film light catalytic activity, can continue following steps:
(6) the laminated film surface after heat treatment is coated with the pure TiO of last layer thickness 28-34nm
2Film, and be coated with pure TiO
2Hole material polyethylene glycol or the trifluoroacetic acid that add percentage by weight 5% in the thin-film process.
Quantity of cadmium release is the important safety sanitary index of silicate product.The existence of cadmium is owing to contain due to the cadmium in the composition that the product surface processing procedure is introduced, and as if improper process control or improper use, very easily causes the excessive stripping of cadmium in use.Therefore product in this experiment will consider the influence that quantity of cadmium release uses film because introduced cadmium element in the surface coating process in test process.
Standard GB 12651-92 " the ceramic lead that contacts with food, quantity of cadmium release tolerance limit " is a state compulsory standard, and its scope of application has covered all domestic ceramics wares.Standard code: the good fortune stripping quantity of any single product does not allow to surpass 0.5ppm.
The present invention adopts AAS to measure the cadmium amount of stripping.Method of testing: the solvent that can touch when glass contacts with air during according to practical application has only water, has acid rain under with serious pollution situation.Therefore be solvent with water when measuring, water is mixed with pH value is 5 dilute acid soln to the acid rain composition in the imitation atmosphere.Diluted acid is poured in the beaker that fills glass substrate,, in 20 ℃ ± 2 ℃ environment temperature, soaked 24 hours, measure its quantity of cadmium release until till overfall 5mm place.
Cubage quantity of cadmium release with the cadmium in the diluted acid of test.The cadmium of unit glass surface stripping (Cd) in test, its result mg/dm
2Be expressed as follows: ρ A (M)=ρ (M) x V/1000xl/A.
In the formula: the cadmium of ρ A (M)-stripping; ρ (the M)-concentration of cadmium in extract, mg/L; V adds the volume of the water in the beaker, mL one by one; The surface area of A-test, dm
2Represent the concentration (Cd) of cadmium stripping and with mg/dm with mg/L
2The cadmium content (Cd) of representation unit surface institute stripping.The seepage discharge of cadmium is as the criterion to be lower than national standard.
Nano-photo catalytic film of the present invention is used for sealing or the elimination of hemi-closure space pernicious gas, the nano-photo catalytic reaction with sunshine as excitation source.
Nano-photo catalytic film reaction condition is: the employing sunshine is an excitation source, is 1-5h at optical response time.Catalytic film is carried on glass surface, is placed in the closed container of printing opacity.In container and a fan is arranged, the gas flow that makes internal tank is to reach concentration balance.
The present invention compared with prior art excellent results is as follows:
1. Zhi Bei film is transparent, with the base material strong adhesion.
2.UV move to the visible light direction and to work, under sunshine, just can carry out photocatalysis.
3. photocatalysis film is active high, and after the light-catalyzed reaction, air quality reaches the level close with outdoor air.
4. nano-photo catalytic film coating process is simple, does not require special installation
(4) specific embodiment
Embodiment 1:
(1) aqueous solution that will contain the CdS solution of 0.2mol/L ammonium titanium fluoride and 0.5mol/L boric acid and 0.25mol/L adds 0.5mgTiO
2Crystallite must react stoste after the stirring; (2) will pass through rare nitric acid respectively, absolute ethyl alcohol and the vertical reactant liquor of putting into of sheet glass after the distilled water supersound washing, at room temperature leave standstill 6h, taking out the washing back dries naturally, (3) sheet glass after drying places tube furnace, under room temperature-450 ℃, heat-treat, and 450 ℃ of following constant temperature 2 hours; (4) then, the aqueous solution of this slide of handling well being put into again 0.1mol/L ammonium titanium fluoride and 0.3mol/L boric acid and 5% (percentage by weight) polyethylene glycol leaves standstill 6h, taking out the washing back dries naturally, (5) in tube furnace, under room temperature-450 ℃, heat-treat then, and, obtain a kind of porous photocatalytic film of stable in properties 450 ℃ of following constant temperature 2 hours.Relevant test data is as follows: at 0.0256m
3In the closed container, the initial concentration that makes formaldehyde is 25ppm, and behind solar light irradiation reaction 5h, the photodissociation rate of formaldehyde is 81%; The initial concentration that makes hydrogen sulfide is 18ppm, and behind solar light irradiation reaction 5h, the photodissociation rate of hydrogen sulfide is 94%; The initial concentration that makes methyl mercaptan is 12ppm, and behind solar light irradiation reaction 5h, the photodissociation rate of methyl mercaptan is 89%; The initial concentration that makes ammonia is 23ppm, and behind solar light irradiation reaction 5h, the photodissociation rate of ammonia is 77%.
Embodiment 2:
(1) aqueous solution that will contain the CdS solution of 0.1mol/L ammonium titanium fluoride and 0.3mol/L boric acid and 0.22mol/L adds 0.5mgTiO
2Crystallite must react stoste after the stirring; (2) will pass through rare nitric acid respectively, absolute ethyl alcohol and the vertical reactant liquor of putting into of sheet glass after the distilled water supersound washing, at room temperature leave standstill 6h, taking out the washing back dries naturally, (3) sheet glass after drying places tube furnace, under room temperature-450 ℃, heat-treat, and 450 ℃ of following constant temperature 2 hours; (4) then, the aqueous solution of this slide of handling well being put into again the trifluoroacetic acid of 0.2mol/L ammonium titanium fluoride and 0.5mol/L boric acid and 5% percentage by weight leaves standstill 6h, taking out the washing back dries naturally, (5) in tube furnace, under room temperature-450 ℃, heat-treat then, and, obtain a kind of porous photocatalytic film of stable in properties 450 ℃ of following constant temperature 2 hours.Relevant test data is as follows: at 0.0256m
3In the closed container, the initial concentration that makes formaldehyde is 23ppm, and behind solar light irradiation reaction 5h, the photodissociation rate of formaldehyde is 80%; The initial concentration that makes hydrogen sulfide is 21ppm, and behind solar light irradiation reaction 5h, the photodissociation rate of hydrogen sulfide is 92%; The initial concentration that makes methyl mercaptan is 16ppm, and behind solar light irradiation reaction 5h, the photodissociation rate of methyl mercaptan is 87%; The initial concentration that makes ammonia is 22ppm, and behind solar light irradiation reaction 5h, the photodissociation rate of ammonia is 75%.
Embodiment 3: as described in embodiment 1, different is after step (5), continues the pure TiO that the laminated film surface of step (6) after heat treatment is coated with last layer thickness 30nm
2Film, and be coated with pure TiO
2A hole material polyethylene glycol that adds percentage by weight 5% in the thin-film process.
Claims (5)
1. one kind is carried out light-catalysed nano-catalytic film under sunshine, it is characterized in that, titanium dioxide is active component as carrier with the cadmium sulfide, coats laminated film at glass surface, and the mol ratio of titanium dioxide and cadmium sulfide is 45%; Laminated film is to heat-treat under room temperature-450 ℃ in tube furnace, and obtained in 2 hours at 450 ℃ of following constant temperature.
2. as claimed in claim 1ly under sunshine, carry out light-catalysed nano-catalytic film, it is characterized in that, scribble the pure TiO of a layer thickness 28-34nm on the gained laminated film surface again
2Film, and be coated with pure TiO
2Hole material polyethylene glycol or the trifluoroacetic acid that add 5% percentage by weight in the thin-film process.
3. as claimed in claim 1ly under sunshine, carry out light-catalysed nano-catalytic film, it is characterized in that titanium dioxide crystal form is the anatase type.
4. a preparation method who carries out light-catalysed nano-catalytic film under sunshine comprises the steps:
(1) in the aqueous solution of the CdS solution that contains 0.1mol/L-0.2mol/L ammonium titanium fluoride and 0.3mol/L-0.5mol/L boric acid and 0.22mol/L-0.25mol/L, adds 0.5mgTiO
2Crystallite must react stoste after the stirring;
(2) will pass through rare nitric acid respectively, absolute ethyl alcohol and the vertical reactant liquor of putting into of sheet glass after the distilled water supersound washing at room temperature leave standstill 6h, take out the washing back and dry naturally;
(3) sheet glass after drying places tube furnace, heat-treats under room temperature-450 ℃, when reaching 450 ℃, 450 ℃ of following constant temperature 2 hours;
(4) sheet glass of handling well is put into the polyethylene glycol of 0.1mol/L-0.2mol/L ammonium titanium fluoride and 0.3mol/L-0.5mol/L boric acid and 5% percentage by weight or the aqueous solution of trifluoroacetic acid and left standstill 6h, take out the washing back and dry naturally;
(5) sheet glass after drying places tube furnace, heat-treats under room temperature-450 ℃, when reaching 450 ℃, 450 ℃ of following constant temperature 2 hours, promptly obtains a kind of porous photocatalytic film of stable performance.
5. the preparation method who carries out light-catalysed nano-catalytic film under sunshine as claimed in claim 4 is characterized in that, comprises that also step (6) is coated with the pure TiO of last layer thickness 28-34nm on the laminated film surface
2Film, and be coated with pure TiO
2Hole material polyethylene glycol or the trifluoroacetic acid that add 5% percentage by weight in the thin-film process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100421158A CN1318136C (en) | 2005-03-02 | 2005-03-02 | Nanometer catalyst for used under sunlight and its prepn. method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100421158A CN1318136C (en) | 2005-03-02 | 2005-03-02 | Nanometer catalyst for used under sunlight and its prepn. method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1692982A true CN1692982A (en) | 2005-11-09 |
| CN1318136C CN1318136C (en) | 2007-05-30 |
Family
ID=35352218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100421158A Expired - Fee Related CN1318136C (en) | 2005-03-02 | 2005-03-02 | Nanometer catalyst for used under sunlight and its prepn. method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1318136C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100348318C (en) * | 2005-11-28 | 2007-11-14 | 浙江大学 | Nanometer, composite semiconductor photocatalyst, and its prepn. method |
| CN100351013C (en) * | 2006-02-27 | 2007-11-28 | 西安交通大学 | CdS/Ti-MCM-41 loaded platinum photo catalyst and its preparation method |
| CN100448780C (en) * | 2007-01-19 | 2009-01-07 | 北京工业大学 | A method for making the surface of cadmium sulfide film hydrophilic by using light |
| CN110655141A (en) * | 2019-09-20 | 2020-01-07 | 蚌埠学院 | Method for repairing water microecosystem by using CdS glass colored glaze |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60118239A (en) * | 1983-11-29 | 1985-06-25 | Toshiba Corp | Semiconductor photocatalyst |
| KR100304349B1 (en) * | 1998-09-09 | 2001-11-30 | 김충섭 | Photocatalyst for generating cadmium sulfide hydrogen and its production method and hydrogen production method using the same |
| KR100301281B1 (en) * | 1999-06-18 | 2001-09-13 | 김충섭 | The Manufacturing Method of CdS Photocatalyst for Hydrogen Production and Method for Producing Hydrogen by use of the same |
| CN1269565C (en) * | 2004-05-26 | 2006-08-16 | 鞍山市环境保护研究所 | SiO2/TiO2 composite nanometer photocatalysis membrane for treating indoor light pollution air and preparing method thereof |
-
2005
- 2005-03-02 CN CNB2005100421158A patent/CN1318136C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100348318C (en) * | 2005-11-28 | 2007-11-14 | 浙江大学 | Nanometer, composite semiconductor photocatalyst, and its prepn. method |
| CN100351013C (en) * | 2006-02-27 | 2007-11-28 | 西安交通大学 | CdS/Ti-MCM-41 loaded platinum photo catalyst and its preparation method |
| CN100448780C (en) * | 2007-01-19 | 2009-01-07 | 北京工业大学 | A method for making the surface of cadmium sulfide film hydrophilic by using light |
| CN110655141A (en) * | 2019-09-20 | 2020-01-07 | 蚌埠学院 | Method for repairing water microecosystem by using CdS glass colored glaze |
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| Publication number | Publication date |
|---|---|
| CN1318136C (en) | 2007-05-30 |
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