☆ 4.4 Article

Electrochemically assisted photocatalysis of hybrid WO3/TiO2 films:: Effect of the WO3 structures on charge separation behavior

TOPICS IN CATALYSIS (2008)

期刊

TOPICS IN CATALYSIS

卷 47, 期 3-4, 页码 148-154

出版社

SPRINGER/PLENUM PUBLISHERS

DOI: 10.1007/s11244-007-9026-3

关键词

WO3/TiO2; electrochemically assisted photocatalysis; band structure

类别

Chemistry, Applied Chemistry, Physical

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摘要

In this study, the photocatalysis of hybrid WO3/TiO2 films with different loadings of WO3 were investigated with and without potential bias. It was clearly indicated that hybrid WO3/TiO2 films show less photo-reactivity under only UV-irradiation, while more effective photocatalysis under potential bias than either TiO2 or WO3 by themselves, their photocatalytic performance depending on the loadings of WO3. In particular, a hybrid WO3/TiO2 film involving an amorphous-like WO3 phase plays a significant role in an enhancement of the electrochemically assisted photocatalysis.

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