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Issue 3, 2016
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2D phosphorene as a water splitting photocatalyst: fundamentals to applications

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Abstract

Hydrogen from direct splitting of water molecules using photons is reckoned to be a sustainable and renewable energy solution for the post fossil-fuel era. Efficient photocatalysts, including metal-free photocatalysts, are key determinants of cost-effective hydrogen generation at a large-scale. The search for new materials that are metal-free is therefore ongoing. Recently, 2D phosphorene, a phosphorus analogue of graphene, has been added as a new semiconductor to the family of monolayer-flatland materials. In this review, we focus on analysing the fundamental electronic, optical and chemical properties of 2D phosphorene and assess its suitability as a metal-free water splitting photocatalyst. We also critically analyse its stability against claims from environmental antagonists and attempt to predict its future as a photocatalyst. This review provides timely information for researchers, scientists and professionals devoted to materials research for photocatalysis.

Graphical abstract: 2D phosphorene as a water splitting photocatalyst: fundamentals to applications

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Publication details

The article was received on 11 Dec 2015, accepted on 18 Jan 2016 and first published on 18 Jan 2016


Article type: Review Article
DOI: 10.1039/C5EE03732H
Citation: Energy Environ. Sci., 2016,9, 709-728
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    2D phosphorene as a water splitting photocatalyst: fundamentals to applications

    M. Z. Rahman, C. W. Kwong, K. Davey and S. Z. Qiao, Energy Environ. Sci., 2016, 9, 709
    DOI: 10.1039/C5EE03732H

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