Significantly enhanced photocatalytic hydrogen production performance of g-C3N4/CNTs/CdZnS with carbon nanotubes as the electron mediators

doi:10.1016/j.jmst.2020.11.047

	Significantly enhanced photocatalytic hydrogen production performance of g-C3N4/CNTs/CdZnS with carbon nanotubes as the electron mediators
	Feng, Chang 1,2,3,4; Chen, Zhuoyuan 1,2,3; Jing, Jiangping 1,2,3; Sun, Mengmeng 1,3; Tian, Jing 1,3,4; Lu, Guiying 1,3,4; Ma, Li 2; Li, Xiangbo 2; Hou, Jian 2
	2021-07-30
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	80 页码:75-83
通讯作者	Chen, Zhuoyuan(zychen@qdio.ac.cn) ; Jing, Jiangping(jpjing@qdio.ac.cn)
摘要	The electron mediator can effectively improve the performance of the direct Z-scheme heterojunction photocatalysts. However, it is still a great challenge to select cheap and efficient electron mediators and to design them into the Z-scheme photocatalytic system. In the present paper, the g-C3N4/CNTs/CdZnS Z-scheme photocatalyst was prepared using carbon nanotubes (CNTs) as the electron mediators, and its photocatalytic hydrogen production performance was studied. Compared with single-phase g-C3N4, CdZnS and biphasic g-C3N4/CdZnS photocatalysts, the photocatalytic hydrogen production performance of the prepared g-C3N4/CNTs/CdZnS has been significantly enhanced. Meanwhile, g-C3N4/CNTs/CdZnS possesses very good photocatalytic hydrogen production stability. The enhanced photocatalytic hydrogen production performance of g-C3N4/CNTs/CdZnS is attributed to the fact that CNTs, as an electron mediator, can accelerate the recombination of the photogenerated holes in the valence band of g-C3N4 and the photogenerated electrons in the conduction band of CdZnS, which makes the g-C3N4/CNTs/CdZnS Zscheme photocatalyst be easier to escape the photogenerated electrons, increases the concentration of the photogenerated carriers and prolongs the lifetime of the photogenerated carriers. This work provides a theoretical basis for the further development and design of CNTs as the intermediate electron mediator of the Z-scheme heterojunction photocatalyst. (C) 2021 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
关键词	Photocatalytic hydrogen production Z-scheme photocatalyst Electron mediator g-C3N4/CNTs/CdZnS Carbon nanotubes
DOI	10.1016/j.jmst.2020.11.047
收录类别	SCI
语种	英语
资助项目	National Natural ScienceFoundation of China[41976036] ; National Natural ScienceFoundation of China[41676069] ; National Natural ScienceFoundation of China[41906034] ; Key Research and Development Program of Shandong Province[2019GHY112066] ; Key Research and Development Program of Shandong Province[2019GHY112085] ; ResearchFund of State Key Laboratory for Marine Corrosion and Protection of Luoyang Ship Material Research Institute (LSMRI)[KF190408]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000656122300008
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：71[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/170975
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Chen, Zhuoyuan; Jing, Jiangping
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, 7 Nanhai Rd, Qingdao 266071, Peoples R China 2.Luoyang Ship Mat Res Inst LSMRI, State Key Lab Marine Corros & Protect, Wenhai Rd, Qingdao 266237, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Megasci, 7 Nanhai Rd, Qingdao 266071, Peoples R China 4.Univ Chinese Acad Sci, 19 Jia Yuquan Rd, Beijing 100049, Peoples R China
第一作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
通讯作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
推荐引用方式 GB/T 7714	Feng, Chang,Chen, Zhuoyuan,Jing, Jiangping,et al. Significantly enhanced photocatalytic hydrogen production performance of g-C3N4/CNTs/CdZnS with carbon nanotubes as the electron mediators[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2021,80:75-83.
APA	Feng, Chang.,Chen, Zhuoyuan.,Jing, Jiangping.,Sun, Mengmeng.,Tian, Jing.,...&Hou, Jian.(2021).Significantly enhanced photocatalytic hydrogen production performance of g-C3N4/CNTs/CdZnS with carbon nanotubes as the electron mediators.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,80,75-83.
MLA	Feng, Chang,et al."Significantly enhanced photocatalytic hydrogen production performance of g-C3N4/CNTs/CdZnS with carbon nanotubes as the electron mediators".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 80(2021):75-83.

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