Alkali-assisted mild aqueous exfoliation for single-layered and structure-preserved graphitic carbon nitride nanosheets
文献类型：期刊论文
| 作者 | Li, Gengnan1; Li, Liang1; Yuan, Haiyang2; Wang, Haifeng2; Zeng, Huarong3; Shi, Jianlin1,4 |
| 刊名 | Journal of Colloid and Interface Science
 |
| 出版日期 | 2017 |
| 卷号 | 495页码:19-26 |
| ISSN号 | 00219797 |
| DOI | 10.1016/j.jcis.2017.01.112 |
| 英文摘要 | Single-layered g-C3N4 nanosheets have been fabricated by delaminating directly its bulk counterpart in an alkaline solution. According to the theoretical modeling, the interaction of OH− with terminal [sbnd]NH2 or bridged [sbnd]NH[sbnd] group of the triazine units within bulk g-C3N4 crystal structure could result in decreased bonding energy between layers and promote the total delamination. The resulting g-C3N4 nanosheets colloid has a relatively high concentration (12 g/L) compared with the traditional ultrasonic assistant exfoliation method. The delaminated nanosheets are revealed by atomic force microscopy to show a lateral size of a hundred nanometers and a thickness of about 0.4 nm, which provides a direct evidence for the total exfoliation of g-C3N4 crystals into their single sheets. More importantly, the X-ray diffraction measurement confirms that the g-C3N4 nanosheets could be re-assembled with well-preserved original crystal structure. The exfoliation mechanism was also confirmed by the DFT calculation. © 2017 Elsevier Inc. |
| 源URL | [http://ir.sic.ac.cn/handle/331005/25355]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai; 200237, China; 2.State Key Laboratory of Chemical Engineering Center for Computational Chemistry and Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai; 200237, China; 3.Information Materials and Devices Research Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China; 4.State Key Laboratory of High Performance Ceramic and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China |
| 推荐引用方式 GB/T 7714 | Li, Gengnan,Li, Liang,Yuan, Haiyang,et al. Alkali-assisted mild aqueous exfoliation for single-layered and structure-preserved graphitic carbon nitride nanosheets[J]. Journal of Colloid and Interface Science,2017,495:19-26. |
| APA | Li, Gengnan,Li, Liang,Yuan, Haiyang,Wang, Haifeng,Zeng, Huarong,&Shi, Jianlin.(2017).Alkali-assisted mild aqueous exfoliation for single-layered and structure-preserved graphitic carbon nitride nanosheets.Journal of Colloid and Interface Science,495,19-26. |
| MLA | Li, Gengnan,et al."Alkali-assisted mild aqueous exfoliation for single-layered and structure-preserved graphitic carbon nitride nanosheets".Journal of Colloid and Interface Science 495(2017):19-26. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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