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Issue 9, 2017
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Two-dimensional nanomaterials for photocatalytic CO2 reduction to solar fuels

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Abstract

As a “kill two birds with one stone” approach, photocatalytic CO2 reduction to solar fuels can save supplying energy and simultaneously protect our environment. Specifically, the use of CO2 as the starting carbon source can help with the required emission cuts. Meanwhile, it directly generates short-chain hydrocarbon products such as CH4, CH3OH, C2H6 and so on, which can serve as a renewable energy source (solar fuels) to alleviate the increasingly tense energy crisis. Two-dimensional (2D) nanomaterials possess several extraordinary advantages, including large surface-to-volume ratio, abundant active sites, atomic thickness, and a high fraction of coordinated unsaturated surface sites, making them promising candidates with high photocatalytic activity for CO2 reduction. This review summarizes a series of typical 2D nanomaterials for photocatalytic CO2 conversion, such as graphene-based photocatalysts, graphitic carbon nitride-based photocatalysts, 2D metal oxide-based photocatalysts, 2D metal chalcogenide-based photocatalysts, 2D metal oxyhalide-based photocatalysts, and layered double hydroxide-based photocatalysts. Furthermore, based on the characteristics of 2D materials and the current status of research on photocatalytic CO2 reduction, the challenges and opportunities of 2D materials as prospective photocatalysts for CO2 reduction will also be discussed.

Graphical abstract: Two-dimensional nanomaterials for photocatalytic CO2 reduction to solar fuels

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Publication details

The article was received on 19 Jul 2017, accepted on 18 Aug 2017 and first published on 18 Aug 2017


Article type: Review Article
DOI: 10.1039/C7SE00344G
Citation: Sustainable Energy Fuels, 2017,1, 1875-1898
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    Two-dimensional nanomaterials for photocatalytic CO2 reduction to solar fuels

    Y. Chen, G. Jia, Y. Hu, G. Fan, Y. H. Tsang, Z. Li and Z. Zou, Sustainable Energy Fuels, 2017, 1, 1875
    DOI: 10.1039/C7SE00344G

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