Title of article
Direct observation of the cascade hole transfer giving free radical cations of trans-stilbenes during TiO2 photocatalytic reactions
Author/Authors
Tachikawa، نويسنده , , Takashi and Tojo، نويسنده , , Sachiko and Fujitsuka، نويسنده , , Mamoru and Majima، نويسنده , , Tetsuro، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
5
From page
50
To page
54
Abstract
One-electron oxidation of 4-phenylbenzoic acid (PBA) by the photo-generated holes and cascade hole transfer from surface-bound radical cation of PBA to free trans-stilbenes (St) at the surface of TiO2 powder slurried in CH3CN has been investigated by time-resolved diffuse reflectance spectroscopy. Formation of radical cations of St (St+) was clearly observed, suggesting that St+ were generated by the cascade hole transfer from the radical cation of PBA adsorbed on the TiO2 surface to free St at the TiO2 surface. The hole transfer kinetics at the TiO2 surface and in the bulk CH3CN solution were also discussed in terms of Marcus theory.
Journal title
Chemical Physics Letters
Serial Year
2004
Journal title
Chemical Physics Letters
Record number
1784898
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