A Study of Mechanism of Modified TiO2Photocatalysts for Photoreduction of CO2 with Surface Photovoltage Spectrum

Abstract

Abstract: The study of mechanism of modified TiO₂photocatalysts for photoreduction of CO₂with surface photovoltage spectrum(SPS) was reported for the first time. The results showed that a new surface photovoltaic response band appears in the SPS curve of Pd/TiO₂or Pd/RuO₂/TiO₂in near IRregion, moreover, the stronger SPS response intensity in near IRis, the higher the catalytic activities of photoreduction of CO₂.The surface state plays a role in the process of photocatalysis.

Key words: Titanium dioxide, Photocatalyst, Surface photovoltage, Reduction of carbon dioxide

CLC Number:

O643.32

TrendMD:

XU Yong-Jun, XIE Teng-Feng, WANG De-Jun, WANG Ying, LI Tie-Jin . A Study of Mechanism of Modified TiO₂Photocatalysts for Photoreduction of CO₂ with Surface Photovoltage Spectrum[J]. Chem. J. Chinese Universities, 1999, 20(3): 461.

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A Study of Mechanism of Modified TiO₂Photocatalysts for Photoreduction of CO₂ with Surface Photovoltage Spectrum

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