Issue 11, 2011

Tuning the light absorption of a molecular vanadium oxide system for enhanced photooxidation performance

Abstract

A new mechanism for enhancing the visible light absorption of a homogeneous polyoxovanadate system is described. The photoactive pentanuclear {V5} isopolyoxovanadate cluster is formed in situ by a thermally-induced condensation reaction starting from a tetranuclear {V4} precursor. Upon irradiation with visible light, {V5} undergoes a light induced reduction reaction resulting in the formation of a 2-electron reduced {V10} cluster. Simultaneously, the oxidant methanol is selectively oxidized to formaldehyde. The {V10} cluster can subsequently be re-oxidized using H2O2 or O2.

Graphical abstract: Tuning the light absorption of a molecular vanadium oxide system for enhanced photooxidation performance

Supplementary files

Article information

Article type
Communication
Submitted
13 Dec 2010
Accepted
11 Jan 2011
First published
24 Jan 2011

Chem. Commun., 2011,47, 3114-3116

Tuning the light absorption of a molecular vanadium oxide system for enhanced photooxidation performance

J. Forster, B. Rösner, M. M. Khusniyarov and C. Streb, Chem. Commun., 2011, 47, 3114 DOI: 10.1039/C0CC05536K

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