Constructing CdSe QDs modified porous g-C3N4 heterostructures for visible light photocatalytic hydrogen production

doi:10.1016/j.jmst.2021.02.068

CORC > 金属研究所 > 中国科学院金属研究所

	Constructing CdSe QDs modified porous g-C3N4 heterostructures for visible light photocatalytic hydrogen production
	Zhang, Zheng 2; Kang, Yuyang 3,4; Yin, Li-Chang 3,4; Niu, Ping 1; Zhen, Chao 3,4; Chen, Runze 3,5; Kang, Xiangdong 3,4; Wu, Fayu 2; Liu, Gang 3,4
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2021-12-30
卷号	95 页码:167-171
关键词	CdSe QDs Heterostructure Photocatalytic water splitting
ISSN号	1005-0302
DOI	10.1016/j.jmst.2021.02.068
通讯作者	Kang, Yuyang(yykang@imr.ac.cn) ; Wu, Fayu(fayuwu@ustl.edu.cn) ; Liu, Gang(gangliu@imr.ac.cn)
英文摘要	Constructing heterostructures with narrow-band-gap semiconductors is a promising strategy to extend light absorption range of graphitic carbon nitride (g-C 3 N 4 ) and simultaneously promote charge separation for its photocatalytic activity improvement. However, its highly localized electronic states of g-C 3 N 4 hinder photo-carrier migration through bulk towards heterostructure interfaces, resulting in low charge carrier separation efficiency of solid bulk g-C 3 N 4 -based heterostructures. Herein, porous g-C 3 N 4 (PCN) material with greatly shortened migration distance of photo-carriers from bulk to surface was used as an effective substrate to host CdSe quantum dots to construct type II heterostructure of CdSe/PCN for photocatalytic hydrogen production. The homogeneous modification of the CdSe quantum dots throughout the whole bulk of PCN together with proper band alignments between CdSe and PCN enables the effective separation of photo-generated charge carriers in the heterostructure. Consequently, the CdSe/PCN heterostructure photocatalyst gives the greatly enhanced photocatalytic hydrogen production activity of 192.3 mu mol h -1 , which is 4.4 and 8.1 times that of CdSe and PCN, respectively. This work provides a feasible strategy to construct carbon nitride-based heterostructure photocatalysts for boosting visible light driven water splitting performance. (c) 2021 Published by Elsevier Ltd on behalf of Chinese Society for Metals.
资助项目	National Nat-ural Science Foundation of China[52002377] ; National Nat-ural Science Foundation of China[51825204] ; National Nat-ural Science Foundation of China[21633009] ; China Postdoctoral Science Foundation[2020M681003] ; China Postdoctoral Science Foundation[2020TQ0327] ; Natural Science Founda-tion of Liaoning Province[2020BS009]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	JOURNAL MATER SCI TECHNOL
WOS记录号	WOS:000733965200006
资助机构	National Nat-ural Science Foundation of China ; China Postdoctoral Science Foundation ; Natural Science Founda-tion of Liaoning Province
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/173841]
专题	金属研究所_中国科学院金属研究所
通讯作者	Kang, Yuyang; Wu, Fayu; Liu, Gang
作者单位	1.Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China 2.Univ Sci & Technol Liaoning, Sch Mat & Met, Anshan 114051, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 4.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 5.Northeastern Univ, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Zheng,Kang, Yuyang,Yin, Li-Chang,et al. Constructing CdSe QDs modified porous g-C3N4 heterostructures for visible light photocatalytic hydrogen production[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2021,95:167-171.
APA	Zhang, Zheng.,Kang, Yuyang.,Yin, Li-Chang.,Niu, Ping.,Zhen, Chao.,...&Liu, Gang.(2021).Constructing CdSe QDs modified porous g-C3N4 heterostructures for visible light photocatalytic hydrogen production.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,95,167-171.
MLA	Zhang, Zheng,et al."Constructing CdSe QDs modified porous g-C3N4 heterostructures for visible light photocatalytic hydrogen production".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 95(2021):167-171.