CN1569714A - Photo-catalyzed self-cleaning coating composition and method for preparing same - Google Patents
Photo-catalyzed self-cleaning coating composition and method for preparing same Download PDFInfo
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- CN1569714A CN1569714A CN 03130468 CN03130468A CN1569714A CN 1569714 A CN1569714 A CN 1569714A CN 03130468 CN03130468 CN 03130468 CN 03130468 A CN03130468 A CN 03130468A CN 1569714 A CN1569714 A CN 1569714A
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- self
- cleaning
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- deposition
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Abstract
The invention discloses a catalytic self-cleaning coating composition, which is selected from one or several of TiO2, Fe2O3, W2O3, Al2O3, SiO2, V2O5, ZnO, SnO2, SrTiO3, SiTiO3, Bi2O3, and CeO2.
Description
Technical field
The present invention relates to a kind of coating composition and preparation method thereof with catalytic self-cleaning effect.
Background technology
In this technical field, known publication number is CN1260767A, and name is called in the patent application of " photo catalytic activation self cleaning product and preparation method thereof ", and it utilizes the method for chemical vapor deposition technology light-plated catalysis self-cleaning coat, with the titanium isopropylate is raw material, N
2Be carrier gas, in carrier gas, add NH simultaneously
3, coating TiO
2Coating forms light and urges self-cleaning coat on matrix.In addition, before deposition light is urged self-cleaning coat, at matrix surface deposition one deck sodium ion diffusion impervious layer, to prevent the sodium ion migration; When in this invention, urging the light self-cleaning coat with chemical vapor-phase method deposition light, the travelling speed of glass ribbon only has 76m/h, glass run speed during far below the float glass ordinary production, according to this invention if will satisfy the self-cleaning net layer of depositing photocatalytic on the continuous float glass belt, need to reduce the glass ribbon travelling speed, so not only can fall output, the unit cost of product is increased.
As what those of ordinary skill in the art understood, the method for plated film has chemical vapor deposition and spray pyrolysis method usually on continuous float glass belt.Spray pyrolysis method is poor owing to the rete firmness that forms, evenly difficult, and seldom is used.Chemical gaseous phase depositing process is a kind of generally acknowledged method that is used for continuous float glass belt plated film.In process for chemical vapor deposition of materials with via, parameters such as additive in the speed that the velocity of flow of the concentration of raw material in carrier gas, carrier gas, waste gas are discharged, glass ribbon travelling speed, the carrier gas (quickening the deposition of raw material) concentration all can influence the sedimentation effect and the quality of rete.
Summary of the invention
One of purpose of the present invention provides a kind of catalytic self-cleaning coating composition, guarantees the catalytic self-cleaning active while of coating, does not need to deposit the sodium ion diffusion impervious layer.
Two of purpose of the present invention provides a kind of method that deposits above-mentioned catalytic self-cleaning coating composition, and sedimentation rate is improved, to satisfy depositing photocatalytic self-cleaning coat on the successive float glass belt.
For achieving the above object, catalytic self-cleaning coating composition of the present invention, this coating composition comprise and select titanium dioxide TiO for use
2, ferric oxide Fe
2O
3, three oxidations, two tungsten W
2O
3, aluminium sesquioxide Al
2O
3, silicon-dioxide SiO
2, Vanadium Pentoxide in FLAKES V
2O
5, zinc oxide ZnO, tindioxide SnO
2, strontium titanate SrTiO
3, bismuth titanates BiTiO
3, bismuthous oxide bismuth trioxide Bi
2O
3, cerium oxide CeO
2In one or more; Utilize said composition to be deposited on matrix surface and form the catalytic self-cleaning coating by chemical vapor deposition method or spray pyrolysis method.
Described coating composition comprises titanium dioxide TiO at least
2, cerium oxide CeO
2
Raw materials used titanium isopropylate, titanium tetrachloride, titanium ethanolate and the Ce (DPM) of being selected from of described matrix surface deposited coatings
4One or more.
The matrix of described deposited coatings comprises glass, metal, enamel.
A kind of method that is used for float glass matrix surface deposition self-cleaning coat comprises the steps:
In successive float glass ribbon matrix, adopt atmospheric pressure chemical vapor deposition (APCVD) method deposited coatings, make the surface temperature of matrix be at least 400 ℃-700 ℃ in the deposition process;
Described carry out the chemical vapor deposition self-cleaning coat in, feed N to matrix surface
2Protection gas;
Described coating material is heated at least 100 ℃, and carries with carrier gas;
The translational speed of described continuous glass ribbon is 100m/h-500m/h;
The sedimentation velocity of described catalytic self-cleaning coating is at least 20 nm/sec;
Described catalytic self-cleaning coat-thickness is 100nm at least.
Be selected from N by the carrier gas described in above-mentioned
2, Ar, He a kind of.
Described carrier gas floating coat material concentration is 5%-50%;
The O that comprises 0.1%-2% in the described carrier gas
2Water vapor with 0-5%.
Positively effect of the present invention:
The present invention is at depositing Ti O
2Deposit CeO in the coating procedure simultaneously
2Particle makes and contains portion C eO in the coating
2Particle reaches and makes photocatalyst avoid Na
+The purpose that ion is poisoned can also partly improve photocatalysis efficiency simultaneously.Avoid Na although also be difficult to explain it at present in theory
+The reason that ion is poisoned, but actual effect is apparent in view, and with the catalytic self-cleaning coating comparison that was coated with coating of stack pile, the catalytic self-cleaning effect slightly improves.
Embodiment
The activity of catalytic self-cleaning coating is represented with the degradation rate of methyl orange aqueous solution, it is strong more to be worth high more explanation activity, tropeolin-D is dissolved in the deionized water, be mixed with the concentration of 20mg/l, the sample that scribbles the catalytic self-cleaning coating is cut into 30mm * 30mm size, get the 25ml methyl orange aqueous solution and put into the weighing bottle of φ 35mm, sample is dipped in the solution, the weighing bottleneck is built with quartz glass plate, with the ultraviolet germicidal of 20W predominant wavelength 254nm as light source, vertical irradiation weighing bottle, ultraviolet ray intensity are 1mw/cm
2, measure methyl orange solution concentration after a while, calculate the degradation rate of sample to methyl orange solution.
Coat-thickness is measured with ellipsometer.
Embodiment 1
Be equipped with the TiO that thickness is about 110nm with the APCVD legal system
2Coating
(300mm * 300mm * 3mm) be heated to 600 ℃ in the CVD test furnace feeds N with 10 standard liter/min flows simultaneously in test furnace with float glass
2Protection is transported glass by the CVD deposition apparatus by travelling belt with the speed of 400m/h, obtains the thick TiO of about 110nm
2Film.N in the CVD deposition apparatus
2, O
2, water vapor, titanium isopropylate steam total flux be 40 standard liter/min, the titanium isopropylate vapor volume accounts for 30% of total flux, O
2Volume accounts for 0.5% of total flux, and the water vapor volume accounts for 1% of total flux, carrier gas N
2Temperature be controlled at 100 ℃.
Embodiment 2
The TiO that on the sample that plates silicon fiml (the about 100nm of thickness), prepares the about 110nm of thickness with the APCVD method
2Coating
(300mm * 300mm * 5mm) be heated to 600 ℃ in the APCVD test furnace, the flow with 10 standard liter/min feeds N in test furnace simultaneously will to plate silicon fiml glass
2Protection is transported glass ribbon by the APCVD deposition apparatus by travelling belt with the speed of 400m/h, obtains the TiO of about 100nm thickness
2+ CeO
2Composite membrane.N in the CVD deposition apparatus
2, O
2, water vapour, titanium isopropylate steam, Ce (DPM)
4Vapour volume accounts for 5% of total flux, O
2Volume accounts for 1.5% of total flux, H
2The O gas is long-pending to account for total flux 0.5%, carries the carrier gas N of titanium isopropylate
2Temperature be controlled at 100 ℃, carry Ce (DPM)
4The carrier gas N of steam
2Temperature be controlled at 200 ℃.
Measure the photocatalytic activity of three embodiment gained samples, the results are shown in Table 1.
The photocatalytic activity of three embodiment samples of table 1
| The rete composition | Thickness (nm) | Degradation speed (mg/lh) | |
| Embodiment 1 | ??TiO 2 | ????110 | ????2.29 |
| Embodiment 2 | Silicon counterdie+TiO 2 | ????110 | ????2.80 |
| Embodiment 3 | ??TiO 2+CeO 2 | ????100 | ????3.19 |
As can be seen from Table 1, contain TiO
2And CeO
2The sample photocatalytic activity of mixture is the highest, reaches 3.19; There is the sample photocatalytic activity of transition layer also higher, reaches 2.80; Pure TiO
2More preceding two samples of membrane sample photocatalytic activity are poor, only are 2.29.
Claims (8)
1, a kind of catalytic self-cleaning coating composition, this coating composition is selected from TiO
2, Fe
2O
3, W
2O
3, Al
2O
3, SiO
2, V
2O
5, ZnO, SnO
2, SrTiO
3, BiTiO
3, Bi
2O
3, CeO
2In one or more; Utilize said composition to be deposited on matrix surface and form the catalytic self-cleaning coating by chemical vapor deposition method or spray pyrolysis method.
2, catalytic self-cleaning coating composition as claimed in claim 1, wherein this coating composition comprises TiO at least
2, CeO
2
3, catalytic self-cleaning coating composition as claimed in claim 1, wherein said matrix surface deposition self-cleaning coat is selected titanium isopropylate, titanium tetrachloride, titanium ethanolate and Ce (DPM) for use with raw material
4One or more.
4, catalytic self-cleaning coating composition as claimed in claim 1, the matrix of wherein said deposition self-cleaning coat comprises glass, metal, enamel.
5, a kind of method that is used for float glass matrix surface deposition self-cleaning coat comprises the steps: to make the surface temperature of matrix be at least 400 ℃-700 ℃ at successive float glass belt matrix adopting atmospheric pressure chemical vapor deposition method deposition self-cleaning coat;
Described carry out the chemical vapor deposition self-cleaning coat in, feed N to matrix surface
2Protection gas;
Described coating material is heated at least 100 ℃, and carries with carrier gas;
The translational speed of described continuous float glass belt is 100m/n-500m/n;
The sedimentation velocity of described deposition self-cleaning coat is at least 20 nm/sec;
Described catalytic self-cleaning coat-thickness is 100nm at least.
6, method as claimed in claim 5, wherein said carrier gas is selected from N
2, Ar, He a kind of.
7, method as claimed in claim 5, wherein said carrier gas floating coat material concentration is 5%-50%.
8, method as claimed in claim 5 comprises the O of 0.1%-2% in the wherein said carrier gas
2Water vapor with 0-5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03130468 CN1569714A (en) | 2003-07-24 | 2003-07-24 | Photo-catalyzed self-cleaning coating composition and method for preparing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03130468 CN1569714A (en) | 2003-07-24 | 2003-07-24 | Photo-catalyzed self-cleaning coating composition and method for preparing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1569714A true CN1569714A (en) | 2005-01-26 |
Family
ID=34469760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03130468 Pending CN1569714A (en) | 2003-07-24 | 2003-07-24 | Photo-catalyzed self-cleaning coating composition and method for preparing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1569714A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406125C (en) * | 2006-01-19 | 2008-07-30 | 北京科技大学 | Method for preparing highly active Fe/Sn ion co-doped nano phtocatalyst of titanium dioxide |
| CN101485988B (en) * | 2009-02-18 | 2011-04-06 | 南京工业大学 | Catalyst for catalysis treatment of biomass with microwave and ultraviolet light as well as preparation method and application thereof |
| CN102080262A (en) * | 2010-12-21 | 2011-06-01 | 中国科学院上海硅酸盐研究所 | Visible light catalytic material, and preparation method and application thereof |
| CN103790000A (en) * | 2013-12-24 | 2014-05-14 | 东华大学 | Preparation method of photo-cured titanate air purification finishing agent specially used for fiber fabric |
| CN104726832A (en) * | 2013-12-20 | 2015-06-24 | 中国科学院兰州化学物理研究所 | Alumina self-cleaning film preparation method |
| CN106085346A (en) * | 2016-06-14 | 2016-11-09 | 广州市白云化工实业有限公司 | Anti-pollution silicone sealant with self-cleaning function and preparation method thereof |
| CN107759099A (en) * | 2017-10-23 | 2018-03-06 | 武汉理工大学 | A kind of fine and close net film glass of high transmission high catalytic activity super-hydrophilic self-cleaning and preparation method thereof |
| CN108722392A (en) * | 2018-04-04 | 2018-11-02 | 菏泽学院 | A kind of preparation method of flakes Zn-Bi-Al ternary photocatalyst materials |
| CN109126794A (en) * | 2018-08-08 | 2019-01-04 | 天津德天助非晶纳米科技有限公司 | Fe, Si co-doped nano TiO2The preparation method and application of composite powder and composite coating |
| CN109534692A (en) * | 2019-01-24 | 2019-03-29 | 福建工程学院 | A kind of scratch resistance decontamination photocatalysis glass and preparation method thereof |
-
2003
- 2003-07-24 CN CN 03130468 patent/CN1569714A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406125C (en) * | 2006-01-19 | 2008-07-30 | 北京科技大学 | Method for preparing highly active Fe/Sn ion co-doped nano phtocatalyst of titanium dioxide |
| CN101485988B (en) * | 2009-02-18 | 2011-04-06 | 南京工业大学 | Catalyst for catalysis treatment of biomass with microwave and ultraviolet light as well as preparation method and application thereof |
| CN102080262A (en) * | 2010-12-21 | 2011-06-01 | 中国科学院上海硅酸盐研究所 | Visible light catalytic material, and preparation method and application thereof |
| CN102080262B (en) * | 2010-12-21 | 2013-01-02 | 中国科学院上海硅酸盐研究所 | Visible light catalytic material, and preparation method and application thereof |
| CN104726832A (en) * | 2013-12-20 | 2015-06-24 | 中国科学院兰州化学物理研究所 | Alumina self-cleaning film preparation method |
| CN103790000B (en) * | 2013-12-24 | 2015-10-28 | 东华大学 | A kind of preparation method of fabric dedicated optical solidification titanate purification of air finishing agent |
| CN103790000A (en) * | 2013-12-24 | 2014-05-14 | 东华大学 | Preparation method of photo-cured titanate air purification finishing agent specially used for fiber fabric |
| CN106085346A (en) * | 2016-06-14 | 2016-11-09 | 广州市白云化工实业有限公司 | Anti-pollution silicone sealant with self-cleaning function and preparation method thereof |
| CN106085346B (en) * | 2016-06-14 | 2019-06-04 | 广州市白云化工实业有限公司 | Anti-pollution silicone sealant with self-cleaning function and preparation method thereof |
| CN107759099A (en) * | 2017-10-23 | 2018-03-06 | 武汉理工大学 | A kind of fine and close net film glass of high transmission high catalytic activity super-hydrophilic self-cleaning and preparation method thereof |
| CN108722392A (en) * | 2018-04-04 | 2018-11-02 | 菏泽学院 | A kind of preparation method of flakes Zn-Bi-Al ternary photocatalyst materials |
| CN108722392B (en) * | 2018-04-04 | 2019-03-19 | 菏泽学院 | A kind of preparation method of flakes Zn-Bi-Al ternary photocatalyst material |
| CN109126794A (en) * | 2018-08-08 | 2019-01-04 | 天津德天助非晶纳米科技有限公司 | Fe, Si co-doped nano TiO2The preparation method and application of composite powder and composite coating |
| CN109534692A (en) * | 2019-01-24 | 2019-03-29 | 福建工程学院 | A kind of scratch resistance decontamination photocatalysis glass and preparation method thereof |
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