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Alternative strategies in improving the photocatalytic and photoelectrochemical activities of visible light-driven BiVO4: a review

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Abstract

The research interest on bismuth vanadate (BiVO4) has heightened over the past decade due to its proven high activity for water oxidation and organic degradations under visible light. Although metal doping and water-oxidation cocatalyst loading have been widely demonstrated to be useful to overcome the poor electron transport and slow water oxidation kinetics of BiVO4, the efficiency of this material is still greatly limited by poor charge separation. Various efforts directed at modifying the surface and bulk properties to improve the performance of BiVO4-based materials have therefore been developed, including crystal facet engineering, coupling with graphitic carbon material, annealing treatment, and nanoscaling. This review aims to provide insights into the most recent progress in these strategies in regard to their influences on the charge separation, transport, and transfer aspects of BiVO4, all of which are crucial to govern photochemical conversion efficiency. Understanding of these charge kinetics in relation to the properties of BiVO4 is of fundamental importance for rational design of BiVO4 with optimum structures, which may serve as a general guideline for the fabrication of metal oxide photocatalysts.

Graphical abstract: Alternative strategies in improving the photocatalytic and photoelectrochemical activities of visible light-driven BiVO4: a review

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Publication details

The article was received on 22 May 2017, accepted on 30 Jun 2017 and first published on 03 Jul 2017


Article type: Review Article
DOI: 10.1039/C7TA04441K
Citation: J. Mater. Chem. A, 2017, Advance Article
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    Alternative strategies in improving the photocatalytic and photoelectrochemical activities of visible light-driven BiVO4: a review

    H. L. Tan, R. Amal and Y. H. Ng, J. Mater. Chem. A, 2017, Advance Article , DOI: 10.1039/C7TA04441K

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