Journal Article10.1021/NN5019945
MoS2/graphene cocatalyst for efficient photocatalytic H2 evolution under visible light irradiation.
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TL;DR: A composite material consisting of CdS nanocrystals grown on the suface of a nanosized MoS2/graphene hybrid as a high-performance noble-metal-free photocatalyst for H2 evolution under visible light irradiation is reported.
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Abstract: Exploiting noble-metal-free cocatalysts is of huge interest for photocatalytic water splitting using solar energy. Here we report a composite material consisting of CdS nanocrystals grown on the suface of a nanosized MoS2/graphene hybrid as a high-performance noble-metal-free photocatalyst for H2 evolution under visible light irradiation. Through the optimizing of each component proportion, the MoS2/G-CdS composite showed the highest photocatalytic H2 production activity when the content of the MoS2/graphene cocatalyst is 2.0 wt % and the molar ratio of MoS2 to graphene is 1:2. The photocatalytic H2 evolution activity of the proposed MoS2/G-CdS composite was tested and compared in Na2S–Na2SO3 solution and lactic acid solution. A 1.8 mmol/h H2 evolution rate in lactic acid solution corresponding to an AQE of 28.1% at 420 nm is not only higher than the case in Na2S–Na2SO3 solution of 1.2 mmol/h but also much higher than that of Pt/CdS in lactic acid solution. The relative mechanism has been investigated. It...
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Citations
MoS2 nanosheet/TiO2 nanowire hybrid nanostructures for enhanced visible-light photocatalytic activities
TL;DR: These one dimensional MoS2 nanosheet/porous TiO2 nanowire hybrid nanostructures as co-catalysts exhibit high activity in visible light photocatalytic hydrogen evolution reaction (HER) with an enhanced hydrogen generation rate.
Structure-controlled CdS(0D, 1D, 2D) embedded onto 2D ZnS porous nanosheets for highly efficient photocatalytic hydrogen generation
TL;DR: In this paper, the shape and morphology of CdS in the Pt-ZnS/CdS heterojunction play a pivotal role in affecting the photocatalytic performance.
One-step vulcanization of Cd(OH)Cl nanorods to synthesize CdS/ZnS/PdS nanotubes for highly efficient photocatalytic hydrogen evolution
Guotai Sun,Siman Mao,Dandan Ma,Yajun Zou,Yixuan Lv,Zhihui Li,Chi He,Yonghong Cheng,Jian-Wen Shi +8 more
TL;DR: In this paper, a one-step vulcanization of Cd(OH)Cl nanorods in the presence of ZnCl2 and Na2PdCl4 was successfully developed to synthesize CdS/ZnS/PdS nanotubes (NTs) for the first time.
Efficient photocatalytic hydrogen production over eosin Y-sensitized MoS2
TL;DR: In this article, a MoS2 catalyst was synthesized via a simple and feasible solvothermal process and characterized by XRD, SEM, TEM and XPS techniques.
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