CN102974336A - Method for preparing loaded photocatalyst film - Google Patents
Method for preparing loaded photocatalyst film Download PDFInfo
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- CN102974336A CN102974336A CN201210532277XA CN201210532277A CN102974336A CN 102974336 A CN102974336 A CN 102974336A CN 201210532277X A CN201210532277X A CN 201210532277XA CN 201210532277 A CN201210532277 A CN 201210532277A CN 102974336 A CN102974336 A CN 102974336A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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Abstract
The invention discloses a method for preparing a loaded photocatalyst film. The method comprises the following steps of: dropwise adding a sodium hydroxide solution to a zinc sulfate solution to generate precipitate; repeatedly washing the precipitate by using ethyl acetate; and dropwise adding tetrabutyl titanate under the condition of magnetic stirring, so as to obtain a colloid; and finally stirring, squeezing and air-drying the colloid to obtain the photocatalyst film loaded on the surface of a quartz fiber film. The film prepared by using the method is relatively high in photocatalytic activity and relatively high in inactivation resistance stability, can be well attached to a quartz fiber and has an extremely good application prospect.
Description
Technical field
The present invention relates to the catalysis material technical field, specifically a kind of load photocatalysis film preparation method.
Background technology
Photocatalysis is to utilize illumination that semiconductor light-catalyst is excited, thereby forms light induced electron and hole at semi-conductive conduction band and valence band location, and the light induced electron of generation and hole can participate in organic photocatalytic degradation reaction subsequently.Photochemical catalyst is the key component of photocatalytic process, and the active height of photochemical catalyst is that can photocatalysis practical deciding factor.At present, the catalyst that is used for the photocatalytic degradation environmental contaminants mostly is N-type semiconductor, such as TiO
2, ZnO, CdS, WO
3, Fe
2O
3Deng, TiO wherein
2Become with its good anti-chemistry and photoetch performance, the point such as cheap and to come in the past few decades most important photochemical catalyst, yet its practical flow of research does not have larger breakthrough for a long time, key is that its absorption to solar energy mainly concentrates on ultraviolet band, and photocatalytic activity is high not enough.And great majority research mainly concentrates on the photocatalyst powder of utilizing suspended state and administers pollution.That suspended state photochemical catalyst owing to have reclaims is difficult, the active component loss is large, easy characteristics such as cohesion in the water, serious restriction the application and development of Photocatalitic Technique of Semiconductor, and with TiO
2Make photocatalysis film and use and to address these problems, but still can not solve TiO
2The problem that photocatalytic activity is low.
Summary of the invention
The present invention is directed to the low problem of photocatalytic activity that existing TiO2 photocatalysis film exists, a kind of load photocatalysis film preparation method is provided.
Preparation method of the present invention is:
(1) preparation 5M solution of zinc sulfate is to wherein dripping the 2M sodium hydroxide solution, until generate till the white precipitate fully;
(2) after white precipitate is used the ethyl acetate cyclic washing, add an amount of glacial acetic acid, it is dissolved fully, and then add the ethylene glycol amine aqueous solution of glacial acetic acid volume 60%, mix;
(3) under magnetic agitation, in mentioned solution, slowly drip butyl titanate, obtain the transparent colloid of yellow-white;
(4) be that the quartz fibre of 1～3mm stirs in the jelly with diameter, with the rotating speed high-speed stirred of 3000r/min, then through being squeezed into wet film;
(5) wet film that obtains is 105 ℃ of lower freeze-day with constant temperature 2～3 hours in temperature, air-dry;
(6) at last 650 ℃～750 ℃ lower calcinings 6～8 hours, annealing can obtain a kind of photocatalysis film that is carried on quartz fibre film surface.
Application process of the present invention is: a kind of load photocatalysis film preparation method is mainly used in sewage disposal, for example Anhui Province's textile printing and dyeing factory dyeing waste water is dark brown aubergine, sharp aroma is arranged, and CODcr is 285mg/L, turbidity 45, colourity 18, water quality after processing through load photocatalysis film of the present invention by illumination 5h after water outlet CODcr be 73mg/L, turbidity 7, colourity 3, clearance reaches more than 70%, meets such waste water discharging standards.
Advantage of the present invention is: the film of the present invention's preparation has higher photocatalytic activity and anti-inactivation is stable preferably, and tack is good on quartz fibre, demonstrates fabulous application prospect.
The specific embodiment
Example 1: prepare first the 5M solution of zinc sulfate, to wherein dripping the 2M sodium hydroxide solution, until generate till the white precipitate fully; After white precipitate is used the ethyl acetate cyclic washing, add the 100g glacial acetic acid, it is dissolved fully, and then add the ethylene glycol amine aqueous solution of glacial acetic acid volume 60%, mix; Under magnetic agitation, in mentioned solution, slowly drip the 20g butyl titanate, obtain the transparent colloid of yellow-white; Be that the quartz fibre of 1mm stirs in the jelly with diameter, with the rotating speed high-speed stirred of 3000r/min, then through being squeezed into wet film; The wet film that obtains is 105 ℃ of lower freeze-day with constant temperature 2 hours in temperature, air-dry; 650 ℃ of lower calcinings 6 hours, annealing can obtain a kind of photocatalysis film that is carried on quartz fibre film surface at last.COD of sewage cr after process load photocatalysis film of the present invention is processed is 73mg/L, turbidity 7, and colourity 3, clearance reaches more than 70%, meets such waste water discharging standards.
Example 2: prepare first the 5M solution of zinc sulfate, to wherein dripping the 2M sodium hydroxide solution, until generate till the white precipitate fully; After white precipitate is used the ethyl acetate cyclic washing, add the 150g glacial acetic acid, it is dissolved fully, and then add the ethylene glycol amine aqueous solution of glacial acetic acid volume 60%, mix; Under magnetic agitation, in mentioned solution, slowly drip the 30g butyl titanate, obtain the transparent colloid of yellow-white; Be that the quartz fibre of 2mm stirs in the jelly with diameter, with the rotating speed high-speed stirred of 3000r/min, then through being squeezed into wet film; The wet film that obtains is 105 ℃ of lower freeze-day with constant temperature 2.5 hours in temperature, air-dry; 700 ℃ of lower calcinings 7 hours, annealing can obtain a kind of photocatalysis film that is carried on quartz fibre film surface at last.COD of sewage cr after process load photocatalysis film of the present invention is processed is 73mg/L, turbidity 7, and colourity 3, clearance reaches more than 70%, meets such waste water discharging standards.
Example 3: prepare first the 5M solution of zinc sulfate, to wherein dripping the 2M sodium hydroxide solution, until generate till the white precipitate fully; After white precipitate is used the ethyl acetate cyclic washing, add the 200g glacial acetic acid, it is dissolved fully, and then add the ethylene glycol amine aqueous solution of glacial acetic acid volume 60%, mix; Under magnetic agitation, in mentioned solution, slowly drip the 30g butyl titanate, obtain the transparent colloid of yellow-white; Be that the quartz fibre of 3mm stirs in the jelly with diameter, with the rotating speed high-speed stirred of 3000r/min, then through being squeezed into wet film; The wet film that obtains is 105 ℃ of lower freeze-day with constant temperature 3 hours in temperature, air-dry; 750 ℃ of lower calcinings 8 hours, annealing can obtain a kind of photocatalysis film that is carried on quartz fibre film surface at last.COD of sewage cr after process load photocatalysis film of the present invention is processed is 73mg/L, turbidity 7, and colourity 3, clearance reaches more than 70%, meets such waste water discharging standards.
Claims (1)
1. load photocatalysis film preparation method is characterized in that:
(1) preparation 5M solution of zinc sulfate is to wherein dripping the 2M sodium hydroxide solution, until generate till the white precipitate fully;
(2) after white precipitate is used the ethyl acetate cyclic washing, add an amount of glacial acetic acid, it is dissolved fully, and then add the ethylene glycol amine aqueous solution of glacial acetic acid volume 60%, mix;
(3) under magnetic agitation, in mentioned solution, slowly drip butyl titanate, obtain the transparent colloid of yellow-white;
(4) be that the quartz fibre of 1～3mm stirs in the jelly with diameter, with the rotating speed high-speed stirred of 3000r/min, then through being squeezed into wet film;
(5) wet film that obtains is 105 ℃ of lower freeze-day with constant temperature 2～3 hours in temperature, air-dry;
(6) at last 650 ℃～750 ℃ lower calcinings 6～8 hours, annealing can obtain a kind of photocatalysis film that is carried on quartz fibre film surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210532277XA CN102974336A (en) | 2012-12-11 | 2012-12-11 | Method for preparing loaded photocatalyst film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210532277XA CN102974336A (en) | 2012-12-11 | 2012-12-11 | Method for preparing loaded photocatalyst film |
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| CN102974336A true CN102974336A (en) | 2013-03-20 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1634653A (en) * | 2004-12-02 | 2005-07-06 | 上海大学 | Method for preparing loaded nano titanium dioxide photocatalysis film |
| CN1724146A (en) * | 2005-07-13 | 2006-01-25 | 北京化工大学 | Preparation for load type nano composite photocatalyst for catalyzing oxidizing degrading organism under sun lighting |
| JP2006182791A (en) * | 2003-02-10 | 2006-07-13 | Kansai Paint Co Ltd | Coating material for forming photocatalyst film |
| JP4107512B1 (en) * | 2007-04-24 | 2008-06-25 | 名古屋市 | Photocatalyst coating liquid and photocatalyst film forming method |
| CN101773844A (en) * | 2010-01-15 | 2010-07-14 | 中国林业科学研究院林产化学工业研究所 | Preparation method of activated carbon loaded and Zn2+/TiO2-doped photocatalyst |
| CN102658210A (en) * | 2012-05-29 | 2012-09-12 | 云南大学 | Imprinting-doped mesoporous TiO2 microspheres and preparation method and application thereof |
-
2012
- 2012-12-11 CN CN201210532277XA patent/CN102974336A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006182791A (en) * | 2003-02-10 | 2006-07-13 | Kansai Paint Co Ltd | Coating material for forming photocatalyst film |
| CN1634653A (en) * | 2004-12-02 | 2005-07-06 | 上海大学 | Method for preparing loaded nano titanium dioxide photocatalysis film |
| CN1724146A (en) * | 2005-07-13 | 2006-01-25 | 北京化工大学 | Preparation for load type nano composite photocatalyst for catalyzing oxidizing degrading organism under sun lighting |
| JP4107512B1 (en) * | 2007-04-24 | 2008-06-25 | 名古屋市 | Photocatalyst coating liquid and photocatalyst film forming method |
| CN101773844A (en) * | 2010-01-15 | 2010-07-14 | 中国林业科学研究院林产化学工业研究所 | Preparation method of activated carbon loaded and Zn2+/TiO2-doped photocatalyst |
| CN102658210A (en) * | 2012-05-29 | 2012-09-12 | 云南大学 | Imprinting-doped mesoporous TiO2 microspheres and preparation method and application thereof |
Non-Patent Citations (2)
| Title |
|---|
| 员汝胜等: "活性炭纤维负载TiO2薄膜的制备及对亚甲基蓝的光催化降解", 《精细化工》, vol. 22, no. 10, 31 October 2005 (2005-10-31), pages 748 - 751 * |
| 翟友存等: "纳米TiO2光催化氧化技术在处理气相污染物中的应用研究及进展", 《恶臭污染防治研究进展——第四届全国恶臭污染测试与控制技术研讨会论文集》, 11 October 2012 (2012-10-11), pages 220 - 225 * |
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Application publication date: 20130320 |