Preparation of TiO2 photocatalyst loaded with V2O5 for O2 evolution

被引：9
|
作者：
Gao You-liang [1 ,2 ]
Chen Qi-yuan [1 ]
Tong Hai-xia [1 ]
Hu Hui-ping [1 ]
Qian Dong [1 ]
Yang Ya-hui [1 ]
Zhou Jian-liang [1 ]
机构：
[1] Cent S Univ, Sch Chem & Chem Engn, Changsha 410083, Peoples R China
[2] Jingdezhen Ceram Inst, Sch Mat Sci & Engn, Jingdezhen 333403, Peoples R China
来源：
JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY | 2009年 / 16卷 / 06期
关键词：
TiO2; V2O5; photocatalytic activity; O-2; evolution; O-XYLENE; OXIDATION; REACTIVITY; CATALYSTS; SURFACE; DEACTIVATION; BEHAVIOR; ANATASE; NH3; NO;
D O I：
10.1007/s11771-009-0153-9
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
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 O-2 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 O-2 evolution for 8%V2O5 (mass fraction) loaded TiO2 catalyst is 118.2 A mu mol/(L center dot h) under UV irradiation, and 83.7 A mu mol/(L center dot h) under visible light irradiation.
引用
收藏
页码：919 / 925
页数：7
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