Preparation and visible light catalytic activity of three-dimensional ordered macroporous CdS/TiO2 films

doi:10.1016/S1872-2067(12)60560-9

Chinese Journal of Catalysis ›› 2013, Vol. 34 ›› Issue (5): 949-955.DOI: 10.1016/S1872-2067(12)60560-9

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Preparation and visible light catalytic activity of three-dimensional ordered macroporous CdS/TiO₂ films

CHEN Xiaofang, ZHANG Jia, HUO Yuning, LI Hexing

Department of Chemistry, Shanghai Normal University, Shanghai 200234, China

Received:2013-01-06 Revised:2013-05-20 Online:2013-05-06 Published:2013-05-06
Supported by:
This work was supported by National Natural Science Foundation of China (20937003, 21261140333, 21237003, and 21207091) and Shanghai Government (11JC1409000, 12230706000, and 12YZ091).

Abstract

Abstract:

A three-dimensional ordered macroporous CdS/TiO₂ film was prepared by the sol-gel method with a colloidal crystal template and S^2- ion exchange, and it exhibited high visible light photocatalytic activity for the aqueous degradation of rhodamine B and 4-chlorophenol. The modification with CdS gave visible light absorption by photosensitization and better separation of photo-induced electrons and holes. The ordered macroporous structure gave higher light utilization and faster reactant transport.

Key words: CdS/TiO₂ film, Three-dimensional ordered macro-porous structure, Visible light, Photocatalysis

CHEN Xiaofang, ZHANG Jia, HUO Yuning, LI Hexing. Preparation and visible light catalytic activity of three-dimensional ordered macroporous CdS/TiO₂ films[J]. Chinese Journal of Catalysis, 2013, 34(5): 949-955.

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Preparation and visible light catalytic activity of three-dimensional ordered macroporous CdS/TiO₂ films

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