PREPARATION AND CHARACTER OF TiO2·SiO2/BEADS

doi:10.7517/j.issn.1674-0475.2000.04.297

Imaging Science and Photochemistry ›› 2000, Vol. 18 ›› Issue (4): 297-301.DOI: 10.7517/j.issn.1674-0475.2000.04.297

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PREPARATION AND CHARACTER OF TiO₂·SiO₂/BEADS

ZHANG Xin-rong¹, ZHAO Meng-yue², CHEN Shi-fu³

1. Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, P. R. China;
2. College of Chemical Engineering, Zhengzhou University of Technology, Zhengzhou 450002, P. R. China;
3. Department of Chemistry, Huaibei Coal Normal College, Huai bei 235000, P. R. China

Received:2000-03-28 Revised:2000-06-01 Online:2000-11-20 Published:2000-11-20

Abstract

Abstract: The preparation of composite photocatalyst TiO₂·SiO₂/beads attached to the hollow glass microbeads using Sol?gel technique was investigated. While the photoactivity was evaluated. The results show that mole ratios of TiO₂·SiO₂/beads have the best value. When mole ratio of composite photocatalyst is 30/70,the best composite photocatalyst produces 2 times active than Degussa P 25 TiO₂. Moreover, the effect of the preparation methods and the preparation conditions and the mole ratios and adsorption of TiO₂·SiO₂/beads and calcination conditions and surface area on composite photocatalyst photoactivity were also studied in this paper.

Key words: TiO₂·SiO₂/beads, preparation, character

CLC Number:

ZHANG Xin-rong, ZHAO Meng-yue, CHEN Shi-fu. PREPARATION AND CHARACTER OF TiO₂·SiO₂/BEADS[J]. Imaging Science and Photochemistry, 2000, 18(4): 297-301.

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PREPARATION AND CHARACTER OF TiO₂·SiO₂/BEADS

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