Issue 8, 2018

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

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

Supplementary files

Article information

Article type
Paper
Submitted
15 N’w 2017
Accepted
28 Sun 2018
First published
29 Sun 2018

Nanoscale, 2018,10, 4130-4137

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, 10, 4130 DOI: 10.1039/C7NR09362D

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