Oxidative power of aqueous non-irradiated TiO2-H2O2 suspensions : Methylene blue degradation and the role of reactive oxygen species

David Wiedmer,Einar Sagstuen,Ken Welch,Håvard J. Haugen,Hanna Tiainen

Applied Catalysis B: Environmental（2016）

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摘要

•Non-irradiated TiO2-H2O2 suspensions can degrade MB.•Degussa P25 shows the highest degradation of MB among five TiO2 catalysts.•Degradation of MB takes place at the catalysts surface.•EPR spin trapping verified the formation of highly oxidative ROS.

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关键词

TiO2,H2O2,Methylene blue,Reactive oxygen species,EPR

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