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

Shahid Iqbal; Ziwei Pan; Kebin Zhou

doi:10.1039/c7nr01705g

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

Shahid Iqbal
, Ziwei Pan
, Kebin Zhou

Research output: Journal Publication › Article › peer-review

193 Citations (Scopus)

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.

Original language	English
Pages (from-to)	6638-6642
Number of pages	5
Journal	Nanoscale
Volume	9
Issue number	20
DOIs	https://doi.org/10.1039/c7nr01705g
Publication status	Published - 2017
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

ASJC Scopus subject areas

General Materials Science

Access to Document

10.1039/c7nr01705g

Cite this

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title = "Enhanced photocatalytic hydrogen evolution from: In situ formation of few-layered MoS2/CdS nanosheet-based van der Waals heterostructures",

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.",

author = "Shahid Iqbal and Ziwei Pan and Kebin Zhou",

note = "Publisher Copyright: {\textcopyright} 2017 The Royal Society of Chemistry.",

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AU - Pan, Ziwei

AU - Zhou, Kebin

PY - 2017

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AB - 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.

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