g-C3N4 nano-fragments as highly efficient hydrogen evolution photocatalysts: Boosting effect of nitrogen vacancy

doi:10.1016/j.apcata.2020.117618

CORC > 金属研究所 > 中国科学院金属研究所

	g-C3N4 nano-fragments as highly efficient hydrogen evolution photocatalysts: Boosting effect of nitrogen vacancy
	Liang, Lei 1; Shi, Lei 1; Wang, Fangxiao 3; Wang, Haihua 2; Yan, Pengqiang 2; Cong, Yufeng 1; Yao, Lizhu 1; Yang, Zhanxu 1; Qi, Wei 2
刊名	APPLIED CATALYSIS A-GENERAL
	2020-06-05
卷号	599 页码:10
关键词	g-C3N4 nano-fragments N vacancy Quantum confinement effect Photocatalysis H-2 evolution
ISSN号	0926-860X
DOI	10.1016/j.apcata.2020.117618
通讯作者	Shi, Lei(shilei_hit@qq.com) ; Qi, Wei(wqi@imr.ac.cn)
英文摘要	N vacancy modified g-C3N4 nano-fragments were facilely prepared through thermal treatment method. The declined size and thickness of resultant g-C3N4 nano-fragments make it possess quantum confinement effect. The synergistic effect of N vacancy and quantum confinement effect endows resulting g-C3N4 nano-fragments with bigger surface area, stronger light response ability and improved migration effect of photoinduced charge. Not only that, the existence of quantum confinement effect remedies the shortcoming that reduced intrinsic conduction band potential was caused by N vacancy, and the conduction band position was easily adjusted. When N vacancy modified g-C3N4 nano-fragments were used to produce H-2, the H-2 evolution rate of the best sample (nano-CN5) was 5.9 folds more than bulk g-C3N4 and kept admirable stability of performance, structure and feature. Clearly, the present work develops a useful strategy for adjusting conduction band position of g-C3N4 and a meaningful thought for changing band gap of other photocatalysts.
资助项目	NSFC of China[91645114] ; NSFC of China[21761132010] ; NSFC of China[21573256] ; basic research projects of Liaoning Provincial Education Department[L2017LQN004] ; talent scientific research fund of LSHU[2016XJJ-080]
WOS研究方向	Chemistry ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000536139700016
资助机构	NSFC of China ; basic research projects of Liaoning Provincial Education Department ; talent scientific research fund of LSHU
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/138911]
专题	金属研究所_中国科学院金属研究所
通讯作者	Shi, Lei; Qi, Wei
作者单位	1.Liaoning Shihua Univ, Coll Chem, Chem Engn & Environm Engn, Fushun 113001, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Shandong Normal Univ, Coll Chem Chem Engn & Mat Sci, Jinan 250014, Peoples R China
推荐引用方式 GB/T 7714	Liang, Lei,Shi, Lei,Wang, Fangxiao,et al. g-C3N4 nano-fragments as highly efficient hydrogen evolution photocatalysts: Boosting effect of nitrogen vacancy[J]. APPLIED CATALYSIS A-GENERAL,2020,599:10.
APA	Liang, Lei.,Shi, Lei.,Wang, Fangxiao.,Wang, Haihua.,Yan, Pengqiang.,...&Qi, Wei.(2020).g-C3N4 nano-fragments as highly efficient hydrogen evolution photocatalysts: Boosting effect of nitrogen vacancy.APPLIED CATALYSIS A-GENERAL,599,10.
MLA	Liang, Lei,et al."g-C3N4 nano-fragments as highly efficient hydrogen evolution photocatalysts: Boosting effect of nitrogen vacancy".APPLIED CATALYSIS A-GENERAL 599(2020):10.