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Issue 48, 2016
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Two-dimensional van der Waals nanocomposites as Z-scheme type photocatalysts for hydrogen production from overall water splitting

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Abstract

The Z-scheme is an efficient route for hydrogen production from photocatalytic water splitting; however, there is no theoretical design for two-dimensional (2D) systems. In the present work, the 2D van der Waals (vdW) MoSe2/graphene/HfS2 and MoSe2/N-doped graphene/HfS2 nanocomposites are proposed to be promising candidates for Z-scheme photocatalysts and verified by density functional theory calculations. The fine control of the n-type doping on graphene can enhance the efficiency of solar energy utilization. Furthermore, the 2D vdW MoSe2/HfS2 nanocomposite is shown to be a direct Z-scheme system for photocatalytic water splitting without redox mediators, which is more easily synthesized in experiment.

Graphical abstract: Two-dimensional van der Waals nanocomposites as Z-scheme type photocatalysts for hydrogen production from overall water splitting

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Article information


Submitted
10 Oct 2016
Accepted
13 Nov 2016
First published
14 Nov 2016

J. Mater. Chem. A, 2016,4, 18892-18898
Article type
Paper

Two-dimensional van der Waals nanocomposites as Z-scheme type photocatalysts for hydrogen production from overall water splitting

C. Fu, Q. Luo, X. Li and J. Yang, J. Mater. Chem. A, 2016, 4, 18892
DOI: 10.1039/C6TA08769H

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