CO PHOTOCATALYTIC-OXIDATION ON TiO2

doi:10.7517/j.issn.1674-0475.2000.04.329

Abstract

Abstract: The photocatalytic oxidation of CO on the “oxidized” TiO₂ was investigated. No CO photooxidation reaction was observed with UV(λ =365 nm) radiation, but CO photocatalytic oxidation could be carried out with UV(λ =253.7 nm) radiation at room temperature. Referring to the catalytic oxidation mechanism of CO on transition metals, it was explained by: O_2(a)^- obtained by the ionsorption of O₂ on the “oxidized” TiO₂ could not oxidize CO, CO photooxidation reaction only occured when O_(a)^- was produced under UV(λ =253.7 nm) illumination.

Key words: TiO₂, CO, photocatalytic oxidation, O_(a)^-

CLC Number:

ZHANG Min, JIN Zhen-sheng, WANG Shou-bin, ZHANG Zhi-jun. CO PHOTOCATALYTIC-OXIDATION ON TiO₂[J]. Imaging Science and Photochemistry, 2000, 18(4): 329-335.

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CO PHOTOCATALYTIC-OXIDATION ON TiO₂

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