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Acta Physico-Chimica Sinica  2006, Vol. 22 Issue (01): 92-97    DOI: 10.3866/PKU.WHXB20060118
Note     
Effect of Magnetic Field on the Photocatalytic Oxidation of Benzene and Ethylene over Pt/TiO2
YANG Jun-wei; WANG Xu-xu; DAI Wen-xin; LI Dan-zhen; FU Xian-zhi
Research Institute of Photocatalysis, Fuzhou University, Fuzhou 350002, P. R. China
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Abstract  The effect of magnetic field on the photocatalytic oxidation of benzene and ethylene contained in air over Pt/TiO2 was studied under 365 nm irradiation in the range of magnetic field intensity of ≤0.2 T. It was found that when the UV lamp was near to or under a magnetic field, the magnetic field could enhance the photocatalytic conversion and mineralization of benzene and ethylene. However, no effect of magnetic field on the reactions was observed when the UV lamp was far away from the magnetic field and the light was transmitted onto the reactor by a focusing fiber. In the former case, the observed enhance of photocatalytic oxidation of the two reactants was a result of the increase of brightness of the UV lamp under magnetic field. This is because that high photo intensity provided high light energy for the reaction and led to increase of the reaction temperature. In the latter case, intensity of UV light wasn′t disturbed by the magnetic field, applying magnetic field had no effect on the two photocatalytic reactions. The results showed that there was no any inherent effect on the gas-solid phase photocatalytic reaction.

Key wordsPhotocatalysis      Magnetic field effect      Benzene      Ethylene     
Received: 13 June 2005      Published: 15 January 2006
Corresponding Authors: FU Xian-zhi     E-mail: xzfu@fzu.edu.cn
Cite this article:

YANG Jun-wei; WANG Xu-xu; DAI Wen-xin; LI Dan-zhen; FU Xian-zhi. Effect of Magnetic Field on the Photocatalytic Oxidation of Benzene and Ethylene over Pt/TiO2. Acta Physico-Chimica Sinica, 2006, 22(01): 92-97.

URL:

http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/10.3866/PKU.WHXB20060118     OR     http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/Y2006/V22/I01/92

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