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A Review of Photocatalysts Prepared by Sol-Gel Method for VOCs Removal
Department of Environmental Engineering and Sustainable Environment Research Center, National Cheng Kung University, 1 University Road, Tainan 701, Taiwan
* Author to whom correspondence should be addressed.
Received: 12 April 2010; in revised form: 11 May 2010 / Accepted: 21 May 2010 / Published: 28 May 2010
Abstract: The sol-gel process is a wet-chemical technique (chemical solution deposition), which has been widely used in the fields of materials science, ceramic engineering, and especially in the preparation of photocatalysts. Volatile organic compounds (VOCs) are prevalent components of indoor air pollution. Among the approaches to remove VOCs from indoor air, photocatalytic oxidation (PCO) is regarded as a promising method. This paper is a review of the status of research on the sol-gel method for photocatalyst preparation and for the PCO purification of VOCs. The review and discussion will focus on the preparation and coating of various photocatalysts, operational parameters, and will provide an overview of general PCO models described in the literature.
Keywords: sol-gel; photocatalytic oxidation; VOCs
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Tseng, T.K.; Lin, Y.S.; Chen, Y.J.; Chu, H. A Review of Photocatalysts Prepared by Sol-Gel Method for VOCs Removal. Int. J. Mol. Sci. 2010, 11, 2336-2361.
Tseng TK, Lin YS, Chen YJ, Chu H. A Review of Photocatalysts Prepared by Sol-Gel Method for VOCs Removal. International Journal of Molecular Sciences. 2010; 11(6):2336-2361.
Tseng, Ting Ke; Lin, Yi Shing; Chen, Yi Ju; Chu, Hsin. 2010. "A Review of Photocatalysts Prepared by Sol-Gel Method for VOCs Removal." Int. J. Mol. Sci. 11, no. 6: 2336-2361.