High-throughput Production of ZnO-MoS2-Graphene Heterostructures for Highly Efficient Photocatalytic Hydrogen Evolution
Key Laboratory of Film Materials & Application for Equipment, School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, China
Eleven-Dimensional Nanomaterial Research Institute, Xiamen 361000, China
Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering Shanghai Jiao Tong University, Shanghai 200240, China
Department of Astronomy, Xiamen University, Xiamen 361000, China
Authors to whom correspondence should be addressed.
Received: 30 May 2019 / Revised: 1 July 2019 / Accepted: 8 July 2019 / Published: 11 July 2019
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High-throughput production of highly efficient photocatalysts for hydrogen evolution remains a considerable challenge for materials scientists. Here, we produced extremely uniform high-quality graphene and molybdenum disulfide (MoS2
) nanoplatelets through the electrochemical-assisted liquid-phase exfoliation, out of which we subsequently fabricated MoS2
/graphene van der Waals heterostructures. Ultimately, zinc oxide (ZnO) nanoparticles were deposited into these two-dimensional heterostructures to produce an artificial ZnO/MoS2
/graphene nanocomposite. This new composite experimentally exhibited an excellent photocatalytic efficiency in hydrogen evolution under the sunlight illumination (
), owing to the extremely high electron mobilities in graphene nanoplatelets and the significant visible-light absorptions of MoS2
. Moreover, due to the synergistic effects in MoS2
and graphene, the lifetime of excited carriers increased dramatically, which considerably improved the photocatalytic efficiency of the ZnO/MoS2
/graphene heterostructure. We conclude that the novel artificial heterostructure presented here shows great potential for the high-efficient photocatalytic hydrogen generation and the high throughput production of visible-light photocatalysts for industrial applications.
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MDPI and ACS Style
Dong, H.; Li, J.; Chen, M.; Wang, H.; Jiang, X.; Xiao, Y.; Tian, B.; Zhang, X. High-throughput Production of ZnO-MoS2-Graphene Heterostructures for Highly Efficient Photocatalytic Hydrogen Evolution. Materials 2019, 12, 2233.
Dong H, Li J, Chen M, Wang H, Jiang X, Xiao Y, Tian B, Zhang X. High-throughput Production of ZnO-MoS2-Graphene Heterostructures for Highly Efficient Photocatalytic Hydrogen Evolution. Materials. 2019; 12(14):2233.
Dong, Haocong; Li, Junzhu; Chen, Mingguang; Wang, Hongwei; Jiang, Xiaochuan; Xiao, Yongguang; Tian, Bo; Zhang, Xixiang. 2019. "High-throughput Production of ZnO-MoS2-Graphene Heterostructures for Highly Efficient Photocatalytic Hydrogen Evolution." Materials 12, no. 14: 2233.
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