Establishing rapid charge channel via synergism of oxygen vacancy and interfacial effect to promote stable photocatalytic NO purification

doi:10.1016/j.cej.2023.148217

CQUET-IR

	Establishing rapid charge channel via synergism of oxygen vacancy and interfacial effect to promote stable photocatalytic NO purification
	Zhang, Wendong 1; Jiang, Ailin 1; He, Wenjie 2; Ma, Wenjun 1; Ma, Yuerui 1; Ai, Wangxing 1; Dong, Xing'an 3; Wang, Yi 1; Chen, Peng 1; Dong, Fan 1,4,5
	2024-02-01
发表期刊	CHEMICAL ENGINEERING JOURNAL
ISSN	1385-8947
EISSN	1873-3212
卷号	481
摘要	Developing efficient and economical photocatalysts is critical to the practical application of nitrogen oxide (NOx) photocatalytic purification technology. At the same time, the spatial separation and migration of charges were extremely limited by the energy band mismatch and limited adaptability of the heterojunction. Herein, the interfacial effect of AgBr/Bi4O5Br2 heterojunctions with oxygen vacancies (OVs) was established to modify the interface and surface properties for enhance the photocatalytic performance. As a result, the optimal OVsBi4O5Br2/AgBr composite exhibited a maximum NO removal rate of 66.4 % (728 ppb -> 245 ppb) and high stability for 600 min under visible light. The results show that an internal electric field could be formed by the synergism of the oxygen vacancy and interfacial effect to provide a rapid charge transport channel, which improved the separation efficiency of photo -generated carriers. It also generated abundant reactive oxygen species (ROS), which enhanced the photocatalytic NO purification performance. The present work provided a valuable design strategy for rapid charge transfer -based photocatalysts for pollutant treatment.
关键词	Oxygen vacancy Interfacial effect Rapid charge channel Photocatalytic NO purification
DOI	10.1016/j.cej.2023.148217
收录类别	SCIE ; EI
语种	英语
WOS研究方向	Engineering
WOS类目	Engineering, Environmental ; Engineering, Chemical
WOS记录号	WOS:001152766000001
出版者	ELSEVIER SCIENCE SA
EI入藏号	20240215348777
原始文献类型	Article
引用统计	被引频次：18[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.cqcet.edu.cn/handle/39TD4454/18221
专题	重庆电子科技职业大学
作者单位	1.Chongqing Normal Univ, Coll Chem, Chongqing Key Lab Green Synth & Applicat, Chongqing 401331, Peoples R China; 2.Chongqing Coll Elect Engn, Chongqing 401331, Peoples R China; 3.Chongqing Normal Univ, Coll Phys & Elect Engn, Chongqing 401331, Peoples R China; 4.Univ Elect Sci & Technol China, Yangtze Delta Reg Inst Huzhou, Huzhou 313001, Peoples R China; 5.Univ Elect Sci & Technol China, Inst Fundamental & Frontier Sci, Huzhou 313001, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Wendong,Jiang, Ailin,He, Wenjie,et al. Establishing rapid charge channel via synergism of oxygen vacancy and interfacial effect to promote stable photocatalytic NO purification[J]. CHEMICAL ENGINEERING JOURNAL,2024,481.
APA	Zhang, Wendong.,Jiang, Ailin.,He, Wenjie.,Ma, Wenjun.,Ma, Yuerui.,...&Dong, Fan.(2024).Establishing rapid charge channel via synergism of oxygen vacancy and interfacial effect to promote stable photocatalytic NO purification.CHEMICAL ENGINEERING JOURNAL,481.
MLA	Zhang, Wendong,et al."Establishing rapid charge channel via synergism of oxygen vacancy and interfacial effect to promote stable photocatalytic NO purification".CHEMICAL ENGINEERING JOURNAL 481(2024).