SIA OpenIR  > 广州中国科学院沈阳自动化研究所分所
Oxygen-doping of ZnIn2S4 nanosheets towards boosted photocatalytic CO2 reduction
Pan, Bao1; Wu, Yu2; Rhimi, Baker2; Qin, Jiani2; Huang, Ying3,4; Yuan MZ(苑明哲)3,4; Wang CY(王传义)2
Department广州中国科学院沈阳自动化研究所分所
Source PublicationJournal of Energy Chemistry
ISSN2095-4956
2021
Volume57Pages:1-9
Indexed ByEI
EI Accession number20204109318981
Contribution Rank3
Funding OrganizationNational Natural Science Foundation of China (Grants Nos. 21976116 and 21902095) ; Shaanxi Science and Technology Program (2020KWZ-005) ; SAFEA of China (High-end foreign expert project # G20190241013) ; Natural Foundation of Shaanxi Province (No. 2020JQ-711) ; Group Linkage Program of Alexander-von-Humboldt Foundation of Germany ; scientific research startup fund of Shannxi University of Science and Technology
KeywordZnIn2S4 Nanosheets Oxygen doping Electronic properties Photocatalysis CO2 reduction
Abstract

Engineering the electronic properties of semiconductor-based photocatalysts using elemental doping is an effective approach to improve their catalytic activity. Nevertheless, there still remain contradictions regarding the role of the dopants played in photocatalysis. Herein, ultrathin ZnIn2S4 (ZIS) nanosheets with oxygen doping were synthesized by a one-pot solvothermal method. XRD, XPS and Raman spectral measurements support the presence of lattice oxygen in the oxygen-doped ZIS (OZIS) sample. With optimum doping of oxygen, the ultrathin OZIS nanosheets show enhanced CO2-to-CO conversion activity with a CO-evolving rate of 1680 μmol h−1 g−1 under visible light irradiation, which is about 7 times higher than that of the pristine ZIS. First-principle calculations support that doping of oxygen in the lattice of ZnI2S4 nanosheets plays a key role in tuning its electronic properties. The remarkable photocatalytic performance of OZIS can be assigned to a synergistic consequence of a unique ultrathin-layered structure and an upward shift of the conduction band minimum (CBM) caused by the oxygen doping into ZIS and the quantum confinement effect (QCE) induced by the decreased particle size after doping as well as to the improved charge separation efficiency. The present work offers a simple elemental doping method to promote charge separation at atomic level and illustrates the roles played by oxygen doping in photocatalysis, giving new insights into highly efficient artificial photosynthesis.

Language英语
Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/27729
Collection广州中国科学院沈阳自动化研究所分所
Corresponding AuthorRhimi, Baker; Wang CY(王传义)
Affiliation1.Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
2.College of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
3.Shenyang Institute of Automation, Guangzhou, Chinese Academy of Science, Guangzhou, Guangdong 511400, China
4.Guangdong Engineering and Technology Research Center for Environmental Purification and Functional Materials, Guangzhou, Guangdong 511400, China
Recommended Citation
GB/T 7714
Pan, Bao,Wu, Yu,Rhimi, Baker,et al. Oxygen-doping of ZnIn2S4 nanosheets towards boosted photocatalytic CO2 reduction[J]. Journal of Energy Chemistry,2021,57:1-9.
APA Pan, Bao.,Wu, Yu.,Rhimi, Baker.,Qin, Jiani.,Huang, Ying.,...&Wang CY.(2021).Oxygen-doping of ZnIn2S4 nanosheets towards boosted photocatalytic CO2 reduction.Journal of Energy Chemistry,57,1-9.
MLA Pan, Bao,et al."Oxygen-doping of ZnIn2S4 nanosheets towards boosted photocatalytic CO2 reduction".Journal of Energy Chemistry 57(2021):1-9.
Files in This Item:
File Name/Size DocType Version Access License
Oxygen-doping of ZnI(5095KB)期刊论文出版稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Pan, Bao]'s Articles
[Wu, Yu]'s Articles
[Rhimi, Baker]'s Articles
Baidu academic
Similar articles in Baidu academic
[Pan, Bao]'s Articles
[Wu, Yu]'s Articles
[Rhimi, Baker]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Pan, Bao]'s Articles
[Wu, Yu]'s Articles
[Rhimi, Baker]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Oxygen-doping of ZnIn2S4 nanosheets towards boosted photocatalytic CO2 reduction.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.