Journal of Zhejiang University SCIENCE A
ISSN 1673-565X(Print), 1862-1775(Online), Monthly

2008   Vol. 9   No. 1   p. 109~112

Development of supported boron-doping TiO₂ catalysts by chemical vapor deposition

Xing-wang ZHANG, Le-cheng LEI^‡

(Institute of Environmental Pollution Controlling Technologies, Zhejiang University, Hangzhou 310028, China)
^‡ Corresponding Author
E-mail: xwzhang@zju.edu.cn; lclei@zju.edu.cn
Received Sept. 9, 2007; revision accepted Nov. 20, 2007; published online Dec. 14, 2007

Abstract: In this study, supported nonmetal (boron) doping TiO₂ coating photocatalysts were prepared by chemical vapor deposition (CVD) to enhance the activity under visible light irradiation and avoid the recovering of TiO₂. Boron atoms were successfully doped into the lattice of TiO₂ through CVD, as evidenced from XPS analysis. B-doped TiO₂ coating catalysts showed drastic and strong absorption in the visible light range with a red shift in the band gap transition. This novel B-TiO₂ coating photocatalyst showed higher photocatalytic activity in methyl orange degradation under visible light irradiation than that of the pure TiO₂ photocatalyst.

Key words: Chemical vapor deposition (CVD), TiO₂, Boron, Visible light, Photocatalysis
doi:10.1631/jzus.A073022             CLC number: X505

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