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

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Fujimoto, Satomi, Cameron, Jamie M., Wei, Rong Jia, Kastner, Katharina, Robinson, David, Sans, Victor, 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
RIS ID: https://nottingham-repository.worktribe.com/output/878135
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: 04 May 2020 19:01
URI: https://eprints.nottingham.ac.uk/id/eprint/45529

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