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ISSN 1000-6818CN 11-1892/O6CODEN WHXUEU
Acta Phys Chim Sin >> 2003,Vol.19>> Issue(02)>> 100-104     doi: 10.3866/PKU.WHXB20030202         中文摘要
The Photocatalytic Enhancement Effect of CO on Pd/TiO2
Zhang Min;Jin Zhen-Sheng;Wang Shou-Bin;Zhang Shun-Li;Zhang Zhi-Jun
State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000;Laboratory of Special Functional Materials, Henan University, Kaifeng 475001
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The photocatalytic oxidation of CO on Pd(2%)/TiO2 was investigated. It was found that CO oxidation activity on Pd/TiO2 was greatly enhanced if illuminated with UV light(λ=365 nm) as compared with that in the dark(the ratio of the above two rate constants is ca. 15). But on bare TiO2 no CO oxidation reaction was observed both in the dark and under UV light illumination. The photocatalytic enhancement of CO on Pd/TiO2 could be elucidated by the increase of surface concentration of oxygen atoms (or O-) on Pd and the spillover of oxygen atoms from Pd to TiO2.

Keywords: CO oxidation   Pd(2%)/TiO2   Oxygen atom   Photocatalytic enhancement   Spillover  
Received: 2002-04-02 Accepted: 2002-06-24 Publication Date (Web): 2003-02-15
Corresponding Authors: Jin Zhen-Sheng; Email: zhenshengjin@henu.edu.cn


Cite this article: Zhang Min;Jin Zhen-Sheng;Wang Shou-Bin;Zhang Shun-Li;Zhang Zhi-Jun. The Photocatalytic Enhancement Effect of CO on Pd/TiO2[J]. Acta Phys. -Chim. Sin., 2003,19 (02): 100-104.    doi: 10.3866/PKU.WHXB20030202
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