Science Letters:Development of supported boron-doping TiO_2 catalysts by chemical vapor deposition  

作　　者：Xing-wang ZHANG Le-cheng LEI 

机构地区：[1]nstitute of Environmental Pollution Controlling Technologies, Zhejiang University, Hangzhou 310028, China

出　　处：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2008年第1期109-112,共4页浙江大学学报（英文版）A辑（应用物理与工程）

基　　金：Project (Nos. 90610005 and 20576120) supported by the National Natural Science Foundation of China

摘　　要：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.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.

关 键 词：Chemical vapor deposition （CVD） TiO2 BORON Visible light PHOTOCATALYSIS 

分 类 号：X505[环境科学与工程—环境工程]