| Increasing Solar Absorption of Atomically Thin 2D Carbon Nitride Sheets for Enhanced Visible-Light Photocatalysis | |
| Wang, Yong1,2; Du, Peipei3; Pan, Hongzhe4; Fu, Lin1,2; Zhang, Yu1,2; Chen, Jie1,2; Du, Youwei1,2; Tang, Nujiang1,2; Liu, Gang3,5 | |
| Corresponding Author | Tang, Nujiang(tangnujiang@nju.edu.cn) ; Liu, Gang(gangliu@imr.ac.cn) |
| 2019-08-22 | |
| Source Publication | ADVANCED MATERIALS
 |
| ISSN | 0935-9648 |
| Pages | 8 |
| Abstract | 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. |
| Keyword | 2D materials carbon nitride fluorination and defluorination photocatalysts visible light |
| Funding Organization | State Key Program for Basic Research ; National Natural Science Foundation of China |
| DOI | 10.1002/adma.201807540 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS Subject | Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| WOS ID | WOS:000483162200001 |
| Publisher | WILEY-V C H VERLAG GMBH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/135323 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Tang, Nujiang; Liu, Gang |
| Affiliation | 1.Nanjing Univ, Natl Lab Solid State Microstruct, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China 2.Nanjing Univ, Jiangsu Prov Key Lab Nanotechnol, Nanjing 210093, Jiangsu, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 4.Linyi Univ, Sch Phys & Elect Engn, Linyi 276005, Shandong, Peoples R China 5.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China |
| Recommended Citation 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. |
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