Preparation method of anatase rutile titania photocatalyst

A titanium dioxide, anatase type technology, applied in the field of synthesizing anatase type titanium dioxide powder, can solve problems such as unfavorable photocatalytic reaction, lengthy deposition time, reducing specific surface area, etc., and achieve low cost, low temperature and simple operation. Effect
CN101007289AInactive Publication Date: 2007-08-01FENG CHIA UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
FENG CHIA UNIVERSITY
Publication Date
2007-08-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention involves preparation method of anatase type TiO2 photo-catalytic powder making use principle of liquid phase precipitation method, it mainly includes: providing solution containing titanium, making the solution containing titanium and an acidic or alkaline solution react and purify at room temperature, said alkaline solution can be caustic soda, ammonium hydroxide and potassium hydrate, said acidic solution can be nitric acid, sulfuric acid, phosphoric acid, hydrochloric acid and boric acid. It is analyzed and displayed that by apparatus that, the titanium oxide powder prepared in the invention is anatase type TiO2, and according the photocatalysis experiments and antibiotic testing experiment results, the titanium oxide powder prepared in the invention has good photocatalysis and antibiotic performance.
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Description

technical field

[0001] The invention relates to an anatase type titanium dioxide (TiO 2 ) powder method, especially a method for synthesizing anatase titanium dioxide powder with mild and simple reaction conditions. Background technique

[0002] Titanium dioxide (TiO 2 ) has become the most attractive semiconductor photocatalyst due to its outstanding advantages in structure and properties. It has broad application prospects in photocatalytic reactions and environmental protection, and the crystal form of titanium dioxide has an important impact on its catalytic activity. Among the three crystal forms of titanium dioxide, the brookite type is unstable and is a metastable phase; 2 ) has strong adsorption capacity and high catalytic activity; the recombination speed of electrons and holes on the surface of rutile titanium dioxide is relatively fast, so its catalytic ability is poor. At present, the methods for preparing titanium dioxide mainly include sol-gel method, microe...

Claims

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