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Acta Phys. -Chim. Sin.  1998, Vol. 14 Issue (05): 424-428    DOI: 10.3866/PKU.WHXB19980508
Article     
Preparation of High Photocatalytic Activity Nano-crystalline Titanium Dioxide by High Temperature Thermo-Hydrolysis Method
Zhao Wen-Kuan, Fang You-Ling, Dong Qing-Hua, Wang Yi-Zhong
Department of Chemistry,Wuhan University,Wuhan 430072|State Key Laboratory of Environmental Aquatic Chemistry,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085
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Abstract  

Nano-crystalline titanium oxide(TiO2) was prepared by the high-temperature thermo-hydrolysis method and crystallized in organic media. Microcrystalline was characterized by TG-DTA, XRD, BET and TEM methods, the average diameter of this titanium dioxide is 12nm with the surface area greater than 100m2•g-1, and the crystal is of anatase structure over a relative wide temperature range. The photocatalytic activity of this titanium oxide was determinated by measuring the rate of degradation of methyl orange and the rate of formation of degradation product. The results showed that this titanium oxide has much higher photocatalytic activity.



Key wordsTitanium dioxide      Photocatalysts      Preparation and Characterization     
Received: 01 August 1997      Published: 15 May 1998
Corresponding Authors: Zhao Wen-Kuan   
Cite this article:

Zhao Wen-Kuan, Fang You-Ling, Dong Qing-Hua, Wang Yi-Zhong. Preparation of High Photocatalytic Activity Nano-crystalline Titanium Dioxide by High Temperature Thermo-Hydrolysis Method. Acta Phys. -Chim. Sin., 1998, 14(05): 424-428.

URL:

http://www.whxb.pku.edu.cn/10.3866/PKU.WHXB19980508     OR     http://www.whxb.pku.edu.cn/Y1998/V14/I05/424

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