Preparation of TiO2 photocatalyst loaded with V2O5 for O2 evolution

被引：0
|
作者：
高友良 [1 ,2 ]
陈启元 [1 ]
童海霞 [1 ]
胡慧萍 [1 ]
钱东 [1 ]
杨亚辉 [1 ]
周建良 [1 ]
机构：
[1] School of Chemistry and Chemical Engineering,Central South University
[2] School of Materials Science and Engineering,Jingdezhen Ceramic Institute
来源：
JournalofCentralSouthUniversityofTechnology | 2009年 / 16卷 / 06期
关键词：
TiO2; V2O5; photocatalytic activity; O2; evolution;
D O I：
暂无
中图分类号：
O614.411 []; O643.36 [催化剂];
学科分类号：
摘要：
TiO2 photocatalysts loaded with V2O5 were prepared via a modified hydrolysis process,and characterized by X-ray diffraction,transmission electron microscopy,Raman spectra and diffuse reflectance UV-Vis spectra measurements. The photocatalytic activity of V2O5/TiO2 was investigated by employing splitting of water for O2 evolution. The results indicate that V2O5 loading can pronouncedly improve the photocatalytic activity of TiO2 with Fe3+ as an electron acceptor under UV or visible light irradiation. The optimum mass fraction of the loaded V2O5 is 8%,and the largest speed of O2 evolution for 8%V2O5 (mass fraction) loaded TiO2 catalyst is 118.2 μmol/(L.h) under UV irradiation,and 83.7 μmol/(L.h) under visible light irradiation.
引用
收藏
页码：919 / 925
页数：7
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