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Citation: 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[J]. Acta Physico-Chimica Sinica, ;2011, 27(09): 2191-2199. doi: 10.3866/PKU.WHXB20110924 shu

Photocatalytic Degradation of Gaseous 1,2-Dichlorobenzene over TiO2/AC Photocatalysts

  • 1.

    State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027, P. R. China

  • Received Date: 10 May 2011
    Available Online: 15 July 2011

    Fund Project: 国家重点基础研究发展计划项目(2011CB201500) (2011CB201500) 国家科技支撑计划项目(2007BAC27B04-4) (2007BAC27B04-4)水体污染控制与治理科技重大专项课题(2009ZX07317-003)资助 (2009ZX07317-003)

  • 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.
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