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Largely enhanced photocatalytic activity of Au/XS2/Au (X = Re, Mo) antenna–reactor hybrids: charge and energy transfer

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Abstract

An antenna–reactor hybrid coupling plasmonic antenna with catalytic nanoparticles is a new strategy to optimize photocatalytic activity. Herein, we have rationally proposed a Au/XS2/Au (X = Re, Mo) antenna reactor, which has a large Au core as the antenna and small satellite Au nanoparticles as the reactor separated by an ultrathin two-dimensional transition-metal dichalcogenide XS2 shell (∼2.6 nm). Due to efficient charge transfer across the XS2 shell as well as energy transfer via coupling of the Au antenna and Au reactor, the photocatalytic activity has been largely enhanced: Au/ReS2/Au exhibits a 3.59-fold enhancement, whereas Au/MoS2/Au exhibits a 2.66-fold enhancement as compared to that of the sum of the three individual components. The different enhancement in the Au/ReS2/Au and Au/MoS2/Au antenna–reactor hybrid is related to the competition and cooperation of charge and energy transfer. These results indicate the great potential of the Au/XS2/Au antenna–reactor hybrid for the development of highly efficient plasmonic photocatalysts.

Graphical abstract: Largely enhanced photocatalytic activity of Au/XS2/Au (X = Re, Mo) antenna–reactor hybrids: charge and energy transfer

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Publication details

The article was received on 15 Dec 2017, accepted on 28 Jan 2018 and first published on 29 Jan 2018


Article type: Paper
DOI: 10.1039/C7NR09362D
Citation: Nanoscale, 2018, Advance Article
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    Largely enhanced photocatalytic activity of Au/XS2/Au (X = Re, Mo) antenna–reactor hybrids: charge and energy transfer

    K. Chen, S. Ding, Z. Luo, G. Pan, J. Wang, J. Liu, L. Zhou and Q. Wang, Nanoscale, 2018, Advance Article , DOI: 10.1039/C7NR09362D

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