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Journal of Nanomaterials
Volume 2013 (2013), Article ID 371356, 8 pages
http://dx.doi.org/10.1155/2013/371356
Review Article

Semiconductor Photocatalyst: Possibilities and Challenges

Department of Applied Physics, Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, Hunan University, Changsha 410082, China

Received 30 January 2013; Accepted 8 March 2013

Academic Editor: Yongzhu Fu

Copyright © 2013 Gui-Fang Huang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Ag3PO4 as a photocatalyst has attracted enormous attention in recent years due to its great potential in harvesting solar energy for environmental purification and fuel production. The photocatalytic performance of Ag3PO4 strongly depends on its morphology, exposed facets, and particle size. The effects of morphology and orientation of Ag3PO4 on the catalytic performance and the efforts on the stability improvement of Ag3PO4 are reviewed here. This paper also discusses the current theoretical understanding of photocatalytic mechanism of Ag3PO4, together with the recent progress towards developing Ag3PO4 composite photocatalysts. The crucial issues that should be addressed in future research activities are finally highlighted.