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Two-dimensional nickel hydroxide/sulfides nanosheet as an efficient cocatalyst for photocatalytic H-2 evolution over CdS nanospheres
Xie, YP; Zheng, YH; Yang, YQ; Jiang, RZ; Wang, GS; Zhang, YJ; Zhang, EL; Zhao, L; Duan, CY; Xie, YP (reprint author), Shenyang Univ Chem Technol, Coll Chem Engn, Key Lab Inorgan Mol Based Chem Liaoning Prov, Econ & Technol Dev Zone, 11 St, Shenyang 110142, Liaoning, Peoples R China.; Duan, CY (reprint author), Dalian Univ Technol, State Key Lab Fine Chem, 2 Linggong Rd, Dalian 116024, Peoples R China.
2018-03-15
发表期刊JOURNAL OF COLLOID AND INTERFACE SCIENCE
ISSN0021-9797
卷号514页码:634-641
摘要The intriguing features of two-dimensional (2D) materials such as better charge carrier separation and abundant surface reaction sites endow them with potential applications as cocatalysts in photocatalysis. In this paper, a ternary 2D nickel hydroxide/sulfides nanosheet composed of Ni(OH)(2), Ni3S2 and NixS6 was loaded on CdS nanospheres by a simple chemical deposition route. The composition of nickel hydroxide/sulfides was determined clearly through an overall analysis using X-ray diffraction, transmission electron microscopy and X-ray photoelectron spectroscopy. Mott-Schottky, electrochemical impedance, steady-state and time-resolved photoluminescence spectroscopy were used to investigate the charge transfer process in CdS and Ni(OH)(2)/Ni3S2/NixS6-CdS. The results confirm that a synergistic effect of Ni(OH)(2)/Ni3S2/NixS6 on CdS has occurred under light irradiation, where the Ni(OH)(2) and nickel sulfides act as hole storage and surface reaction sites, respectively, to promote the charge transfer on CdS. The improved charge transfer and separation efficiency as well as the increased surface reaction sites in Ni(OH)(2)/Ni3S2/NixS6-CdS finally result in a dramatically improved photocatalytic performance. The photocatalytic H-2 evolution rate of Ni(OH)(2)/Ni3S2/NixS6-CdS is ca. 46 times higher than that of CdS, and the photocatalytic stability of CdS is also improved substantially under visible light irradiation. (C) 2017 Elsevier Inc. All rights reserved.; The intriguing features of two-dimensional (2D) materials such as better charge carrier separation and abundant surface reaction sites endow them with potential applications as cocatalysts in photocatalysis. In this paper, a ternary 2D nickel hydroxide/sulfides nanosheet composed of Ni(OH)(2), Ni3S2 and NixS6 was loaded on CdS nanospheres by a simple chemical deposition route. The composition of nickel hydroxide/sulfides was determined clearly through an overall analysis using X-ray diffraction, transmission electron microscopy and X-ray photoelectron spectroscopy. Mott-Schottky, electrochemical impedance, steady-state and time-resolved photoluminescence spectroscopy were used to investigate the charge transfer process in CdS and Ni(OH)(2)/Ni3S2/NixS6-CdS. The results confirm that a synergistic effect of Ni(OH)(2)/Ni3S2/NixS6 on CdS has occurred under light irradiation, where the Ni(OH)(2) and nickel sulfides act as hole storage and surface reaction sites, respectively, to promote the charge transfer on CdS. The improved charge transfer and separation efficiency as well as the increased surface reaction sites in Ni(OH)(2)/Ni3S2/NixS6-CdS finally result in a dramatically improved photocatalytic performance. The photocatalytic H-2 evolution rate of Ni(OH)(2)/Ni3S2/NixS6-CdS is ca. 46 times higher than that of CdS, and the photocatalytic stability of CdS is also improved substantially under visible light irradiation. (C) 2017 Elsevier Inc. All rights reserved.
部门归属[xie, ying peng ; zheng, yunhui ; jiang, renzheng ; wang, guosheng ; zhang, yajing ; zhang, enlei] shenyang univ chem technol, coll chem engn, key lab inorgan mol based chem liaoning prov, econ & technol dev zone, 11 st, shenyang 110142, liaoning, peoples r china ; [yang, yongqiang] chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, liaoning, peoples r china ; [zhao, liang ; duan, chun-ying] dalian univ technol, state key lab fine chem, 2 linggong rd, dalian 116024, peoples r china
关键词Visible-light Irradiation Hydrogen-production Driven Photocatalysts Water Generation Surface Nanomaterials Enhancement G-c3n4 Roles
学科领域Chemistry, Physical
资助者National Natural Science Foundation of China [51402199, 51422210, 51301114]; Key Laboratory Project of Education Department of Liaoning Province [LZ2015060]; China Postdoctoral Science Foundation [2017M621137]
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/79427
专题中国科学院金属研究所
通讯作者Xie, YP (reprint author), Shenyang Univ Chem Technol, Coll Chem Engn, Key Lab Inorgan Mol Based Chem Liaoning Prov, Econ & Technol Dev Zone, 11 St, Shenyang 110142, Liaoning, Peoples R China.; Duan, CY (reprint author), Dalian Univ Technol, State Key Lab Fine Chem, 2 Linggong Rd, Dalian 116024, Peoples R China.
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Xie, YP,Zheng, YH,Yang, YQ,et al. Two-dimensional nickel hydroxide/sulfides nanosheet as an efficient cocatalyst for photocatalytic H-2 evolution over CdS nanospheres[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2018,514:634-641.
APA Xie, YP.,Zheng, YH.,Yang, YQ.,Jiang, RZ.,Wang, GS.,...&Duan, CY .(2018).Two-dimensional nickel hydroxide/sulfides nanosheet as an efficient cocatalyst for photocatalytic H-2 evolution over CdS nanospheres.JOURNAL OF COLLOID AND INTERFACE SCIENCE,514,634-641.
MLA Xie, YP,et al."Two-dimensional nickel hydroxide/sulfides nanosheet as an efficient cocatalyst for photocatalytic H-2 evolution over CdS nanospheres".JOURNAL OF COLLOID AND INTERFACE SCIENCE 514(2018):634-641.
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