Defect-Expedited Photocarrier Separation in Zn2In2S5 for High-Efficiency Photocatalytic C-C Coupling Synchronized with H2 Liberation from Benzyl Alcohol
文献类型：期刊论文
| 作者 | Ma, Minmin1,2; Wang, Ran1,2; Shi, Li3,4; Li, Ronghua5; Huang, Jie6; Li, Zhuo7; Li, Peng8; Konysheva, Elena Yu.9; Li, Yanbo5; Liu, Gang6 |
| 刊名 | ADVANCED FUNCTIONAL MATERIALS
 |
| 出版日期 | 2024-05-23 |
| 页码 | 9 |
| 关键词 | benzyl alcohol conversion H-2 production photocatalytic C-C coupling Zn vacancy Zn2In2S5 |
| ISSN号 | 1616-301X |
| DOI | 10.1002/adfm.202405922 |
| 通讯作者 | Liu, Gang(gangliu@imr.ac.cn) ; Xu, Xiaoxiang(xxxu@tongji.edu.cn) |
| 英文摘要 | 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. |
| 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 |
| 语种 | 英语 |
| WOS记录号 | WOS:001229815000001 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 资助机构 | 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 |
| 源URL |  |
| 专题 | 金属研究所_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. |
入库方式： OAI收割
来源：金属研究所
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