Increasing Solar Absorption of Atomically Thin 2D Carbon Nitride Sheets for Enhanced Visible-Light Photocatalysis
文献类型：期刊论文
| 作者 | Wang, Yong4,5; Du, Peipei2; Pan, Hongzhe1; Fu, Lin4,5; Zhang, Yu4,5; Chen, Jie4,5; Du, Youwei4,5; Tang, Nujiang4,5; Liu, Gang2,3 |
| 刊名 | ADVANCED MATERIALS
 |
| 出版日期 | 2019-08-22 |
| 页码 | 8 |
| 关键词 | 2D materials carbon nitride fluorination and defluorination photocatalysts visible light |
| ISSN号 | 0935-9648 |
| DOI | 10.1002/adma.201807540 |
| 通讯作者 | Tang, Nujiang(tangnujiang@nju.edu.cn) ; Liu, Gang(gangliu@imr.ac.cn) |
| 英文摘要 | Atomically thin 2D carbon nitride sheets (CNS) are promising materials for photocatalytic applications due to their large surface area and very short charge-carrier diffusion distance from the bulk to the surface. However, compared to their bulk counterpart, CNS' applications always suffer from an enlarged bandgap and thus narrowed solar absorption range. Here, an approach to significantly increase solar absorption of the atomically thin CNS via fluorination followed by thermal defluorination is reported. This approach can greatly increase the visible-light absorption of CNS by extending the absorption edge up to 578 nm. The modulated CNS loaded with Pt cocatalyst as a photocatalyst shows a superior photocatalytic hydrogen production activity under visible-light irradiation to Pt-CNS. Combining experimental characterization with theoretical calculations shows that this approach can introduce cyano groups into the framework of CNS as well as the accompanied nitrogen vacancies at the edges, which leads to both narrowing the bandgap and changing the charge distribution. This study will provide an effective strategy to increase solar absorption of carbon-nitride-based photocatalysts for solar energy conversion applications. |
| 资助项目 | State Key Program for Basic Research[2017YFA0206304] ; National Natural Science Foundation of China[51572122] ; National Natural Science Foundation of China[51825204] ; National Natural Science Foundation of China[51572266] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000483162200001 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 资助机构 | State Key Program for Basic Research ; National Natural Science Foundation of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/135322]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Tang, Nujiang; Liu, Gang |
| 作者单位 | 1.Linyi Univ, Sch Phys & Elect Engn, Linyi 276005, Shandong, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 4.Nanjing Univ, Natl Lab Solid State Microstruct, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China 5.Nanjing Univ, Jiangsu Prov Key Lab Nanotechnol, Nanjing 210093, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yong,Du, Peipei,Pan, Hongzhe,et al. Increasing Solar Absorption of Atomically Thin 2D Carbon Nitride Sheets for Enhanced Visible-Light Photocatalysis[J]. ADVANCED MATERIALS,2019:8. |
| APA | Wang, Yong.,Du, Peipei.,Pan, Hongzhe.,Fu, Lin.,Zhang, Yu.,...&Liu, Gang.(2019).Increasing Solar Absorption of Atomically Thin 2D Carbon Nitride Sheets for Enhanced Visible-Light Photocatalysis.ADVANCED MATERIALS,8. |
| MLA | Wang, Yong,et al."Increasing Solar Absorption of Atomically Thin 2D Carbon Nitride Sheets for Enhanced Visible-Light Photocatalysis".ADVANCED MATERIALS (2019):8. |
入库方式： OAI收割
来源：金属研究所
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