Defect-Expedited Photocarrier Separation in Zn2In2S5 for High-Efficiency Photocatalytic C-C Coupling Synchronized with H2 Liberation from Benzyl Alcohol

doi:10.1002/adfm.202405922

IMR OpenIR

	Defect-Expedited Photocarrier Separation in Zn₂In₂S₅ for High-Efficiency Photocatalytic C-C Coupling Synchronized with H₂ Liberation from Benzyl Alcohol
	Ma, Minmin 1,2; Wang, Ran 1,2; Shi, Li 3,4; Li, Ronghua 5; Huang, Jie 6; Li, Zhuo 7; Li, Peng 8; Konysheva, Elena Yu.9; Li, Yanbo 5; Liu, Gang 6; Xu, Xiaoxiang 1,2
通讯作者	Liu, Gang(gangliu@imr.ac.cn) ; Xu, Xiaoxiang(xxxu@tongji.edu.cn)
	2024-05-23
发表期刊	ADVANCED FUNCTIONAL MATERIALS
ISSN	1616-301X
页码	9
摘要	Photocatalytic carbon-carbon (C-C) coupling of benzyl alcohol is a promising means to coproduce the value-added chemicals with H-2 but is generally subject to low efficiency in terms of photon utilization. Here, efficient benzyl alcohol C-C coupling is achieved over Zn2In2S5 containing a tunable content of Zn vacancies (V-Zn). The V-Zn tends to form shallow defect states below the conduction band that can expedite photocarrier separation by collecting the photo-generated electrons. The V-Zn-collected electrons are essential for a high selectivity of the C-C coupling reactions because they enable a fast elimination of the byproduct benzaldehyde by catalyzing its reduction back to the ketyl radicals. Under simulated sunlight, the V-Zn-containing Zn2In2S5 accomplishes approximate to 100% conversion of benzyl alcohol for merely 1 h and attains approximate to 100% selectivity for the C-C coupling compounds for 2 h, delivering an apparent quantum yield as high as 7.7% at 420 +/- 20 nm. The benefits of V-Zn have also been verified by the theoretical calculations that indicate reduced energy barriers for various surface reactions in the presence of V-Zn. This work brings fresh mechanistic insights into the role of V-Zn and can serve as a useful guideline in the design of efficient photocatalysts.
关键词	benzyl alcohol conversion H-2 production photocatalytic C-C coupling Zn vacancy Zn2In2S5
资助者	Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; Project of State Key Laboratory of Organic Electronics and Information Displays, Nanjing University of Posts and Telecommunications ; New Cornerstone Science Foundation through the XPLORER PRIZE
DOI	10.1002/adfm.202405922
收录类别	SCI
语种	英语
资助项目	Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China[52172225] ; National Natural Science Foundation of China[51972233] ; National Natural Science Foundation of China[52425201] ; National Natural Science Foundation of China[52332009] ; National Natural Science Foundation of China[22203046] ; Project of State Key Laboratory of Organic Electronics and Information Displays, Nanjing University of Posts and Telecommunications ; New Cornerstone Science Foundation through the XPLORER PRIZE
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:001229815000001
出版者	WILEY-V C H VERLAG GMBH
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/186397
专题	中国科学院金属研究所
通讯作者	Liu, Gang; Xu, Xiaoxiang
作者单位	1.Tongji Univ, Putuo Peoples Hosp, Clin & Cent Lab, 200060 Shanghai, Peoples R China 2.Tongji Univ, Sch Chem Sci & Engn, Shanghai Key Lab Chem Assessment & Sustainabil, Shanghai 200092, Peoples R China 3.Nanjing Univ Posts & Telecommun, State Key Lab Organ Elect & Informat Displays, Nanjing 210023, Peoples R China 4.Nanjing Univ Posts & Telecommun, Inst Adv Mat IAM, Nanjing 210023, Peoples R China 5.Univ Elect Sci & Technol China, Inst Fundamental & Frontier Sci, Chengdu 610054, Peoples R China 6.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 7.Tongji Univ, Coll Environm Sci & Engn, Shanghai 200092, Peoples R China 8.Shaanxi Huaqin Technol Ind Co Ltd, Xian 710055, Peoples R China 9.Russian Acad Sci, Ural Branch, Inst Met, Ekaterinburg 620016, Russia
推荐引用方式 GB/T 7714	Ma, Minmin,Wang, Ran,Shi, Li,et al. Defect-Expedited Photocarrier Separation in Zn₂In₂S₅ for High-Efficiency Photocatalytic C-C Coupling Synchronized with H₂ Liberation from Benzyl Alcohol[J]. ADVANCED FUNCTIONAL MATERIALS,2024:9.
APA	Ma, Minmin.,Wang, Ran.,Shi, Li.,Li, Ronghua.,Huang, Jie.,...&Xu, Xiaoxiang.(2024).Defect-Expedited Photocarrier Separation in Zn₂In₂S₅ for High-Efficiency Photocatalytic C-C Coupling Synchronized with H₂ Liberation from Benzyl Alcohol.ADVANCED FUNCTIONAL MATERIALS,9.
MLA	Ma, Minmin,et al."Defect-Expedited Photocarrier Separation in Zn₂In₂S₅ for High-Efficiency Photocatalytic C-C Coupling Synchronized with H₂ Liberation from Benzyl Alcohol".ADVANCED FUNCTIONAL MATERIALS (2024):9.