Two-dimensional nickel hydroxide/sulfides nanosheet as an efficient cocatalyst for photocatalytic H-2 evolution over CdS nanospheres
文献类型：期刊论文
| 作者 | 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. |
| 刊名 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
 |
| 出版日期 | 2018-03-15 |
| 卷号 | 514页码:634-641 |
| 关键词 | Visible-light Irradiation Hydrogen-production Driven Photocatalysts Water Generation Surface Nanomaterials Enhancement G-c3n4 Roles |
| ISSN号 | 0021-9797 |
| 英文摘要 | 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. |
| 学科主题 | Chemistry, Physical |
| 语种 | 英语 |
| 资助机构 | National Natural Science Foundation of China [51402199, 51422210, 51301114]; Key Laboratory Project of Education Department of Liaoning Province [LZ2015060]; China Postdoctoral Science Foundation [2017M621137] |
| 公开日期 | 2018-06-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/79427]  |
| 专题 | 金属研究所_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. |
| 推荐引用方式 GB/T 7714 | 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. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。