Au nanoparticles@MoS2 core-shell structures with moderate MoS2 coverage for efficient photocatalytic water splitting

doi:10.1016/j.jallcom.2017.02.240

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中科院固体物理研究所

	Au nanoparticles@MoS2 core-shell structures with moderate MoS2 coverage for efficient photocatalytic water splitting
	Yang, Lin 1,2; Guo, Shaohui 1,2; Li, Xuanhua 1,2,3
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2017-06-05
卷号	706 期号:无页码:82-88
关键词	Mos2 Plasmonic Effect Coverage Density Water Splitting
DOI	10.1016/j.jallcom.2017.02.240
文献子类	Article
英文摘要	Metal nanoparticles (NPs)@MoS2 core-shell nanostructures as plasmon-enhanced photocatalysts have been studied recently for efficiently photocatalytic water splitting. However, there is few reports about the effect of coverage of MoS2 on the photocatalytic water splitting. Here, we systematically study the effect of the MoS2 coverage on the photocatalytic water splitting in the Au NPs@MoS2 core-shell hybrid structures. The different MoS2 coverage on the Au NPs can be obtained through tuning the hydrothermal reaction time from 3 h to 18 h. We find that the moderate MoS2 coverage (i.e. 12 h) can ensure the H2O molecules penetrating the MoS2 shell and reaching to the Au-MoS2 junctions. In addition, the moderate MoS2 coverage is beneficial for the incident light to excite the strong plasmonic effect around the Au NPs core. The most efficient separation efficiency of electronehole pairs in the Au NPs@MoS2 core-shell structure with the moderate MoS2 coverage is also possible reason for the high performance photo-catalytic water splitting. As a result, the moderate MoS2 coverage shows the largest yield of hydrogen gas production (2110.7 mu mol) among the Au NPs@MoS2 core-shell structures. In addition, the yield of hydrogen gas production is also obvious higher than that of the pure MoS2 spheres (880.0 mu mol/g) and simple mixture of Au NPs and MoS2 sphere (1380.3 mu mol/g). Our study strengthens the significance of the moderate MoS2 coverage in the Au NPs@MoS2 core-shell structures for high-performance photocatalytic water splitting. (C) 2017 Elsevier B.V. All rights reserved.
WOS关键词	HYDROGEN EVOLUTION REACTION ; HYBRID STRUCTURES ; RAMAN-SCATTERING ; FACILE SYNTHESIS ; MONOLAYER MOS2 ; VISIBLE-LIGHT ; H-2 EVOLUTION ; QUANTUM DOTS ; ONE-POT ; NANOSHEETS
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
WOS记录号	WOS:000397997300010
资助机构	National Natural Science Foundation of China(51571166 ; National Natural Science Foundation of China(51571166 ; National Natural Science Foundation of China(51571166 ; National Natural Science Foundation of China(51571166 ; Natural Science Research Project of Shaanxi Province(2016JM5001) ; Natural Science Research Project of Shaanxi Province(2016JM5001) ; Natural Science Research Project of Shaanxi Province(2016JM5001) ; Natural Science Research Project of Shaanxi Province(2016JM5001) ; Research Fund of the State Key Laboratory of Solidification Processing (NWPU)(147-QZ-2016) ; Research Fund of the State Key Laboratory of Solidification Processing (NWPU)(147-QZ-2016) ; Research Fund of the State Key Laboratory of Solidification Processing (NWPU)(147-QZ-2016) ; Research Fund of the State Key Laboratory of Solidification Processing (NWPU)(147-QZ-2016) ; Research Fund of Key Laboratory of Materials Physics, Institute of Solid State Physics, CAS(2016KLMP04) ; Research Fund of Key Laboratory of Materials Physics, Institute of Solid State Physics, CAS(2016KLMP04) ; Research Fund of Key Laboratory of Materials Physics, Institute of Solid State Physics, CAS(2016KLMP04) ; Research Fund of Key Laboratory of Materials Physics, Institute of Solid State Physics, CAS(2016KLMP04) ; Key Scientific and Technological Team from Shaanxi Province(2015KCT-12) ; Key Scientific and Technological Team from Shaanxi Province(2015KCT-12) ; Key Scientific and Technological Team from Shaanxi Province(2015KCT-12) ; Key Scientific and Technological Team from Shaanxi Province(2015KCT-12) ; 61505167) ; 61505167) ; 61505167) ; 61505167) ; National Natural Science Foundation of China(51571166 ; National Natural Science Foundation of China(51571166 ; National Natural Science Foundation of China(51571166 ; National Natural Science Foundation of China(51571166 ; Natural Science Research Project of Shaanxi Province(2016JM5001) ; Natural Science Research Project of Shaanxi Province(2016JM5001) ; Natural Science Research Project of Shaanxi Province(2016JM5001) ; Natural Science Research Project of Shaanxi Province(2016JM5001) ; Research Fund of the State Key Laboratory of Solidification Processing (NWPU)(147-QZ-2016) ; Research Fund of the State Key Laboratory of Solidification Processing (NWPU)(147-QZ-2016) ; Research Fund of the State Key Laboratory of Solidification Processing (NWPU)(147-QZ-2016) ; Research Fund of the State Key Laboratory of Solidification Processing (NWPU)(147-QZ-2016) ; Research Fund of Key Laboratory of Materials Physics, Institute of Solid State Physics, CAS(2016KLMP04) ; Research Fund of Key Laboratory of Materials Physics, Institute of Solid State Physics, CAS(2016KLMP04) ; Research Fund of Key Laboratory of Materials Physics, Institute of Solid State Physics, CAS(2016KLMP04) ; Research Fund of Key Laboratory of Materials Physics, Institute of Solid State Physics, CAS(2016KLMP04) ; Key Scientific and Technological Team from Shaanxi Province(2015KCT-12) ; Key Scientific and Technological Team from Shaanxi Province(2015KCT-12) ; Key Scientific and Technological Team from Shaanxi Province(2015KCT-12) ; Key Scientific and Technological Team from Shaanxi Province(2015KCT-12) ; 61505167) ; 61505167) ; 61505167) ; 61505167)
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/32945]
专题	合肥物质科学研究院_中科院固体物理研究所
作者单位	1.Northwestern Polytech Univ, Sch Mat Sci & Engn, Ctr Nano Energy Mat, State Key Lab Solidificat Proc, Xian 710072, Peoples R China 2.Shaanxi Joint Lab Graphene NPU, Xian 710072, Peoples R China 3.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Yang, Lin,Guo, Shaohui,Li, Xuanhua. Au nanoparticles@MoS2 core-shell structures with moderate MoS2 coverage for efficient photocatalytic water splitting[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2017,706(无):82-88.
APA	Yang, Lin,Guo, Shaohui,&Li, Xuanhua.(2017).Au nanoparticles@MoS2 core-shell structures with moderate MoS2 coverage for efficient photocatalytic water splitting.JOURNAL OF ALLOYS AND COMPOUNDS,706(无),82-88.
MLA	Yang, Lin,et al."Au nanoparticles@MoS2 core-shell structures with moderate MoS2 coverage for efficient photocatalytic water splitting".JOURNAL OF ALLOYS AND COMPOUNDS 706.无(2017):82-88.