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g-C3N4 nano-fragments as highly efficient hydrogen evolution photocatalysts: Boosting effect of nitrogen vacancy
Liang, Lei1; Shi, Lei1; Wang, Fangxiao3; Wang, Haihua2; Yan, Pengqiang2; Cong, Yufeng1; Yao, Lizhu1; Yang, Zhanxu1; Qi, Wei2
Corresponding AuthorShi, Lei(shilei_hit@qq.com) ; Qi, Wei(wqi@imr.ac.cn)
2020-06-05
Source PublicationAPPLIED CATALYSIS A-GENERAL
ISSN0926-860X
Volume599Pages:10
AbstractN 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.
Keywordg-C3N4 nano-fragments N vacancy Quantum confinement effect Photocatalysis H-2 evolution
Funding OrganizationNSFC of China ; basic research projects of Liaoning Provincial Education Department ; talent scientific research fund of LSHU
DOI10.1016/j.apcata.2020.117618
Indexed BySCI
Language英语
Funding ProjectNSFC 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 Research AreaChemistry ; Environmental Sciences & Ecology
WOS SubjectChemistry, Physical ; Environmental Sciences
WOS IDWOS:000536139700016
PublisherELSEVIER
Citation statistics
Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/138912
Collection中国科学院金属研究所
Corresponding AuthorShi, Lei; Qi, Wei
Affiliation1.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
Recommended Citation
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.
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