Enhanced visible-light photocatalytic activity of a TiO<sub>2</sub> hydrosol assisted by H<sub>2</sub>O<sub>2</sub>: Surface complexation and kinetic modeling

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Enhanced visible-light photocatalytic activity of a TiO₂ hydrosol assisted by H₂O₂: Surface complexation and kinetic modeling

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作者：Tongxu Liu^a ; ^{txliu@soil.gd.cn" class="auth_mail" title="E-mail the corresponding author} ; Xiaomin Li^a ; ^b ; Xiu Yuan^b ; Ying Wang^a ; Fangbai Li^a ; ^{cefbli@soil.gd.cn" class="auth_mail" title="E-mail the corresponding author}
关键词：TiO2 hydrosol ; H2O2 ; Visible-light photocatalytic activity ; Surface complexation ; Kinetic modeling
刊名：Journal of Molecular Catalysis A: Chemical
出版年：2016
出版时间：April 2016
年：2016
卷：414
期：Complete
页码：122-129
全文大小：942 K

文摘

•: The surface complex (>Ti-OOH) can be easily measured in liquid TiO₂ hydrosol with H₂O₂.
•: The fast formation kinetics of >Ti-OOH were examined in a stopped-flow spectral system.
•: The adsorption–desorption constant and formation rate constants are reported for the first time.
•: A kinetic model composed of well-known key reactions was established.
•: The rate constants for the photo-excitation of >Ti-OOH were determined.

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