Photocatalytic Aerobic Oxidation of Alcohols on TiO₂: The Acceleration Effect of a Brønsted Acid

Photocatalytic Aerobic Oxidation of Alcohols on TiO₂: The Acceleration Effect of a Brønsted Acid

Up to speed: Brønsted acids adsorbed onto TiO2 dramatically accelerated the photocatalytic oxidation of alcohols without any loss of selectivity (see scheme). This effect results from the decomposition of the Ti species, having a side‐on peroxide, on the TiO2 surface. The decomposition is aided by t...

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Veröffentlicht in:Angewandte Chemie (International ed.) 2010-10, Vol.49 (43), p.7976-7979
Hauptverfasser: Wang, Qi, Zhang, Miao, Chen, Chuncheng, Ma, Wanhong, Zhao, Jincai
Format: Artikel
Sprache:eng
Schlagworte:
alcohols
heterogeneous catalysis
oxidation
photochemistry
titanium
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Zusammenfassung:Up to speed: Brønsted acids adsorbed onto TiO2 dramatically accelerated the photocatalytic oxidation of alcohols without any loss of selectivity (see scheme). This effect results from the decomposition of the Ti species, having a side‐on peroxide, on the TiO2 surface. The decomposition is aided by the Brønsted acid, thereby regenerating the active Ti sites on the surface of the catalyst.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201001533