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Acta Phys. -Chim. Sin.  2011, Vol. 27 Issue (09): 2191-2199    DOI: 10.3866/PKU.WHXB20110924
CATALYSIS AND SURFACE SCIENCE     
Photocatalytic Degradation of Gaseous 1,2-Dichlorobenzene over TiO2/AC Photocatalysts
LU Sheng-Yong, HUANG Yi-Long, WANG Qiu-Lin, LI Xiao-Dong, YAN Jian-Hua
State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027, P. R. China
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Abstract  Using commercially available activated carbon (AC) as a carrier, photocatalysts of activated carbon-supported TiO2 (TiO2/AC) with different specific surface areas and TiO2 loading contents were prepared by the sol-gel method. Nitrogen adsorption, X-ray diffraction (XRD), and scanning electron microscopy (SEM) were used to obtain the performance parameters of the TiO2/AC catalysts. The photocatalytic performance of the TiO2/AC catalysts was studied by using gaseous 1,2-dichlorobenzene. The influence of catalyst dose, specific surface area, and gaseous 1,2-dichlorobenzene concentration on this photodegradation was investigated. The results show that a nano-TiO2 deposit was formed with a particle size of approximately 10 nm. The loading of TiO2 onto the AC with a large specific surface area enhanced the photocatalytic activity of TiO2 photocatalysis with regard to the degradation of gaseous 1,2- dichlorobenzene. We show that TiO2/AC catalysts have a synergetic effect on AC adsorption and TiO2 photocatalysis during the degradation of gaseous 1,2-dichlorobenzene by comparing the photocatalytic performance of a commercial P25 catalyst and TiO2/AC catalysts.

Key wordsSupported TiO2      Activated carbon support      Specific surface area      Photocatalyst      Gaseous 1,2-dichlorobenzene     
Received: 10 May 2011      Published: 15 July 2011
MSC2000:  O644  
  O649  
Fund:  

The project was supported by the National Key Basic Research Program of China (2011CB201500), National Key Technology Research and Development Program of China (2007BAC27B04-4) and NationalWater Pollution Control and Management Technology Major Projects, China (2009ZX07317-003).

Corresponding Authors: LU Sheng-Yong     E-mail: lushy@zju.edu.cn
Cite this article:

LU Sheng-Yong, HUANG Yi-Long, WANG Qiu-Lin, LI Xiao-Dong, YAN Jian-Hua. Photocatalytic Degradation of Gaseous 1,2-Dichlorobenzene over TiO2/AC Photocatalysts. Acta Phys. -Chim. Sin., 2011, 27(09): 2191-2199.

URL:

http://www.whxb.pku.edu.cn/10.3866/PKU.WHXB20110924     OR     http://www.whxb.pku.edu.cn/Y2011/V27/I09/2191

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