A simple approach to the Visible-light photoactivation of molecular metal oxides

Fujimoto, Satomi and Cameron, Jamie M. and Wei, Rong Jia and Kastner, Katharina and Robinson, David and Sans, Victor and Newton, Graham N. and Oshio, Hiroki (2017) A simple approach to the Visible-light photoactivation of molecular metal oxides. Inorganic Chemistry . ISSN 1520-510X

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Abstract

This study explores a new method to maximise the visible-light driven photocatalytic performance of organic-inorganic hybrid polyoxometalates (POMs). Experimental and theoretical investigations of a family of phosphonate substituted POMs shows that modification of grafted organic moieties can be used to tune the electronic structure and photo-activity of the metal oxide component. Unlike fully inorganic polyoxotungstates, these organic-inorganic hybrid species are responsive to visible-light and function as photocatalysts (λ > 420 nm) in the decomposition of a model environmental pollutant. The degree of photo-activation is shown to be dependent on the nature of the inductive effect exerted by the covalently-grafted substituent groups. This study emphasises the untapped potential that lies in an orbital engineering approach to hybrid-POM design and helps to underpin the next generation of bespoke, robust and cost-effective molecular metal oxide photo-active materials and catalysts.

Item Type: Article
Additional Information: This document is the Accepted Manuscript version of a Published Work that appeared in final form in Inorganic Chemistry, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/acs.inorgchem.7b01499
Keywords: Polyoxometalates, Photocatalysis, Visible Light, Photochemistry, Electrochemistry, Hybrid materials, Redox Chemistry, Density Functional Theory.
Schools/Departments: University of Nottingham, UK > Faculty of Engineering
University of Nottingham, UK > Faculty of Science > School of Chemistry
Identification Number: 10.1021/acs.inorgchem.7b01499
Depositing User: Smith, Ruth
Date Deposited: 08 Sep 2017 08:34
Last Modified: 08 Sep 2017 08:38
URI: http://eprints.nottingham.ac.uk/id/eprint/45529

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