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Citation: 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[J]. Acta Physico-Chimica Sinica, ;2006, 22(01): 92-97. doi: 10.3866/PKU.WHXB20060118 shu

Effect of Magnetic Field on the Photocatalytic Oxidation of Benzene and Ethylene over Pt/TiO₂

1.
Research Institute of Photocatalysis, Fuzhou University, Fuzhou 350002, P. R. China

Received Date: 13 June 2005
Available Online: 15 January 2006

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.
- Photocatalysis;Magnetic field effect;Benzene;Ethylene
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沈阳化工大学材料科学与工程学院沈阳 110142

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Effect of Magnetic Field on the Photocatalytic Oxidation of Benzene and Ethylene over Pt/TiO2

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通讯作者: 陈斌, bchen63@163.com

Effect of Magnetic Field on the Photocatalytic Oxidation of Benzene and Ethylene over Pt/TiO₂