In situ synthesis of g-C3N4/TiO2 heterostructures with enhanced photocatalytic hydrogen evolution under visible light

Hui Zhang; Feng Liu; Hao Wu; Xin Cao; Jianhua Sun; Weiwei Lei

doi:10.1039/C7RA06786K

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In situ synthesis of g-C₃N₄/TiO₂ heterostructures with enhanced photocatalytic hydrogen evolution under visible light†

Hui Zhang,

^a Feng Liu,^a Hao Wu,^a Xin Cao,^a Jianhua Sun

*^a and Weiwei Lei

*^b

Author affiliations

* Corresponding authors

^a School of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, Jiangsu Province, P. R. China
E-mail: sunjh@jsut.edu.cn

^b Institute for Frontier Materials, Deakin University, Waurn Ponds, Victoria 3216, Australia
E-mail: weiwei.lei@deakin.edu.au

Abstract

Graphitic carbon nitride (g-C₃N₄) nanosheets/titanium dioxide (TiO₂) nanoparticles heterostructures have been in situ synthesized via a modified sol–gel method combined with a calcination process. The prepared g-C₃N₄/TiO₂ heterostructured composites exhibited excellent photocatalytic hydrogen generation from water splitting under visible light irradiation. It was found that the TiO₂ nanoparticles are well-dispersed on the g-C₃N₄ nanosheets. The as-obtained g-C₃N₄ coupled with TiO₂ not only increased the surface area of g-C₃N₄, but also promoted the separation of photo-generated charge carriers. The developed composite exhibits an excellent hydrogen evolution rate of 40 μmol h⁻¹, which is about 2.7 times higher than that of pure g-C₃N₄ nanosheets.

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Article information

DOI: https://doi.org/10.1039/C7RA06786K
Article type: Paper
Submitted: 18 Jun 2017
Accepted: 10 Aug 2017
First published: 18 Aug 2017
This article is Open Access

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RSC Adv., 2017,7, 40327-40333

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In situ synthesis of g-C₃N₄/TiO₂ heterostructures with enhanced photocatalytic hydrogen evolution under visible light

H. Zhang, F. Liu, H. Wu, X. Cao, J. Sun and W. Lei, RSC Adv., 2017, 7, 40327 DOI: 10.1039/C7RA06786K

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