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

页码：919 / 925

页数：7

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