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Enhanced photocatalytic hydrogen evolution from in situ formation of few-layered MoS2/CdS nanosheet-based van der Waals heterostructures

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Abstract

Here we report for the first time that the H2 bubbles generated by photocatalytic water splitting are effective in the layer-by-layer exfoliation of MoS2 nanocrystals (NCs) into few layers. The as-obtained few layers can be in situ assembled with CdS nanosheets (NSs) into van der Waals heterostructures (vdWHs) of few-layered MoS2/CdS NSs which, in turn, are effective in charge separation and transfer, leading to enhanced photocatalytic H2 production activity. The few-layered MoS2/CdS vdWHs exhibited a H2 evolution rate of 140 mmol g(CdS)−1 h−1 and achieved an apparent quantum yield of 66% at 420 nm.

Graphical abstract: Enhanced photocatalytic hydrogen evolution from in situ formation of few-layered MoS2/CdS nanosheet-based van der Waals heterostructures

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Publication details

The article was received on 09 Mar 2017, accepted on 30 Apr 2017 and first published on 03 May 2017


Article type: Communication
DOI: 10.1039/C7NR01705G
Citation: Nanoscale, 2017, Advance Article
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    Enhanced photocatalytic hydrogen evolution from in situ formation of few-layered MoS2/CdS nanosheet-based van der Waals heterostructures

    S. Iqbal, Z. Pan and K. Zhou, Nanoscale, 2017, Advance Article , DOI: 10.1039/C7NR01705G

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