| Constructing porous carbon nitride nanosheets for efficient visible-light-responsive photocatalytic hydrogen evolution | |
| Li, Tongtong1,2; Wang, Shulan1; Li, Li3; Zhu, Huaze2; Yang, Yongqiang2; Liu, Gang2 | |
| Corresponding Author | Li, Li(lilicmu@alumni.cmu.edu) ; Yang, Yongqiang(yqyang@imr.ac.cn) |
| 2022-12-15 | |
| Source Publication | JOURNAL OF COLLOID AND INTERFACE SCIENCE
 |
| ISSN | 0021-9797 |
| Volume | 628Pages:214-221 |
| Abstract | The photocatalytic performance of polymeric carbon nitride (CN) is mainly restricted by the poor mass charge separation efficiency and poor light absorption due to its polymeric nature. The conventional strategies to address these problems involved constructing a nanosheets structure would result in a blue shifted light absorption and increased exciton binding energy. Here, with combination of ammonia etch-ing and selectively hydrogen-bond breaking, holey carbon nitride nanosheets (hCNNS) were constructed, thus widening the light absorption range, and spontaneously shortening the migration distance of elec-trons and holes in the lateral and vertical directions, respectively. Further analysis also found out the reserved atomic structure order endowed hCNNS with the relatively high redox potential. When irradi-ated with visible light (k > 420 nm) and loaded with 3 wt% Pt as the cocatalyst, the hydrogen evolution rate of hCNNS was about 40 times higher than the bulk CN, and the apparent quantum yield (AQY) of hCNNS is 1.47% at 435 +/- 15 nm. We expect this research can provide a new sight for achieving highly effi-cient solar utilization of CN-based photocatalysts.(c) 2022 Elsevier Inc. All rights reserved. |
| Keyword | Photocatalyst Charge separation Transfer distance Carbon nitride Porosity Nanosheet |
| Funding Organization | National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Young Talent Project of Shenyang National Laboratory for Materials Science ; IMR Introducing Outstand- ing Scholars project |
| DOI | 10.1016/j.jcis.2022.08.049 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[52072379] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2022190] ; Young Talent Project of Shenyang National Laboratory for Materials Science ; IMR Introducing Outstand- ing Scholars project |
| WOS Research Area | Chemistry |
| WOS Subject | Chemistry, Physical |
| WOS ID | WOS:000863171300003 |
| Publisher | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/175574 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Li, Li; Yang, Yongqiang |
| Affiliation | 1.Northeastern Univ, Coll Sci, Dept Chem, Shenyang 110819, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Northeastern Univ, Sch Met, Shenyang 110819, Liaoning, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Tongtong,Wang, Shulan,Li, Li,et al. Constructing porous carbon nitride nanosheets for efficient visible-light-responsive photocatalytic hydrogen evolution[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2022,628:214-221. |
| APA | Li, Tongtong,Wang, Shulan,Li, Li,Zhu, Huaze,Yang, Yongqiang,&Liu, Gang.(2022).Constructing porous carbon nitride nanosheets for efficient visible-light-responsive photocatalytic hydrogen evolution.JOURNAL OF COLLOID AND INTERFACE SCIENCE,628,214-221. |
| MLA | Li, Tongtong,et al."Constructing porous carbon nitride nanosheets for efficient visible-light-responsive photocatalytic hydrogen evolution".JOURNAL OF COLLOID AND INTERFACE SCIENCE 628(2022):214-221. |
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