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In situ ion exchange synthesis of MoS2/g-C3N4 heterojunctions for highly efficient hydrogen production

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Abstract

Novel and advanced photocatalytic materials for water splitting are of huge interest due to the increasing global energy crisis. In this work, MoS2/g-C3N4 heterojunctions are prepared as high-performance photocatalysts for hydrogen evolution using solar energy. Benefiting from the elaborate ion exchange, uniformly dispersed MoS2 quantum dots with controllable size and a high loading amount grow in situ on the surface of g-C3N4 nanosheets through a simple hydrothermal process, and tight heterostructures are obtained at the interface between the two semiconductors. The quantization of MoS2 enhances its redox activity in water splitting, and the compact heterojunction facilitates the separation of photoinduced charge carriers, resulting in efficient photocatalytic H2 production at the MoS2/g-C3N4 heterojunction. This work highlights ion exchange as a facile and effective method for obtaining high efficiency MoS2/g-C3N4 heterojunction photocatalysts.

Graphical abstract: In situ ion exchange synthesis of MoS2/g-C3N4 heterojunctions for highly efficient hydrogen production

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Publication details

The article was received on 13 Sep 2017, accepted on 27 Nov 2017 and first published on 28 Nov 2017


Article type: Paper
DOI: 10.1039/C7NJ03483K
Citation: New J. Chem., 2018, Advance Article
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    In situ ion exchange synthesis of MoS2/g-C3N4 heterojunctions for highly efficient hydrogen production

    M. Wang, P. Ju, Y. Zhao, J. Li, X. Han and Z. Hao, New J. Chem., 2018, Advance Article , DOI: 10.1039/C7NJ03483K

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