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Citation: 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 Physico-Chimica Sinica, ;2003, 19(02): 100-104. doi: 10.3866/PKU.WHXB20030202 shu

The Photocatalytic Enhancement Effect of CO on Pd/TiO₂

1.
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

Received Date: 2 April 2002
Available Online: 15 February 2003

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.
- CO oxidation;Pd(2％)/TiO₂;Oxygen atom;Photocatalytic enhancement;Spillover
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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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The Photocatalytic Enhancement Effect of CO on Pd/TiO2

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通讯作者: 陈斌, bchen63@163.com

The Photocatalytic Enhancement Effect of CO on Pd/TiO₂