Studies on Electron Transfer on PtⅣClx /TiO2 Induced by Irradiation of  Visible Light

Abstract

Abstract:

AbstractA TiO₂ modified with Pt^Ⅳchloride was investigated by diffuse reflectance UV\|Vis spectra (DRS), X\|ray photoelectron spectroscopy (XPS), surface photovoltage spectroscopy(SPS) and electric field\|induced surface photovoltage spectroscopy(EFISPS). XPS showed that a Ti-O-Pt^ⅣCl_xsurface complex between Pt^Ⅳ chloride and TiO₂appears to be responsible for visible light absorption. An electron transfer from the surface-complexed Pt^ⅣClx to the conduction band of TiO₂ upon absorbing visible light was confirmed by SPS and EFISPS.

Key words: KeywordsPt^ⅣCl_x /TiO₂; Visible light; Surface photovoltage spectroscopy; Electron transfer

CLC Number:

O643

TrendMD:

CHEN Yi-Lin, LI Dan-Zhen, WU Qing-Ping, FU Xian-Zhi, WANG Xu-Xu. Studies on Electron Transfer on Pt^ⅣCl_x /TiO₂ Induced by Irradiation of Visible Light[J]. Chem. J. Chinese Universities, 2006, 27(2): 340.

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Studies on Electron Transfer on Pt^ⅣCl_x /TiO₂ Induced by Irradiation of Visible Light

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