Preparation of TiO2 photocatalyst loaded with V2O5 for O2 evolution

TiO 2 photocatalysts loaded with V 2 O 5 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 V 2 O 5 /TiO 2 was investigated by emp...

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Bibliographic Details
Published inJournal of Central South University of Technology. Science & technology of mining and metallurgy Vol. 16; no. 6; pp. 919 - 925
Main Authors Gao, You-liang, Chen, Qi-yuan, Tong, Hai-xia, Hu, Hui-ping, Qian, Dong, Yang, Ya-hui, Zhou, Jian-liang
Format Journal Article
LanguageEnglish
Published Changsha Central South University 01.12.2009
Subjects
Engineering
Metallic Materials
TiO
evolution
photocatalytic activity
V
O
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Summary:TiO 2 photocatalysts loaded with V 2 O 5 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 V 2 O 5 /TiO 2 was investigated by employing splitting of water for O 2 evolution. The results indicate that V 2 O 5 loading can pronouncedly improve the photocatalytic activity of TiO 2 with Fe 3+ as an electron acceptor under UV or visible light irradiation. The optimum mass fraction of the loaded V 2 O 5 is 8%, and the largest speed of O 2 evolution for 8%V 2 O 5 (mass fraction) loaded TiO 2 catalyst is 118.2 µmol/(L·h) under UV irradiation, and 83.7 µmol/(L·h) under visible light irradiation.
ISSN:1005-9784
1993-0666
DOI:10.1007/s11771-009-0153-9