Alkali-assisted mild aqueous exfoliation for single-layered and structure-preserved graphitic carbon nitride nanosheets

CORC > 上海硅酸盐研究所 > 中国科学院上海硅酸盐研究所 > 无机功能材料与器件重点实验室 > 期刊论文

	Alkali-assisted mild aqueous exfoliation for single-layered and structure-preserved graphitic carbon nitride nanosheets
	Li, Gengnan 1; Li, Liang 1; Yuan, Haiyang 2,3; Wang, Haifeng 2,3; Zeng, Huarong 4; Shi, Jianlin 1,5
刊名	JOURNAL OF COLLOID AND INTERFACE SCIENCE
	2017-06-01
卷号	495 页码:19-26
关键词	Nanosheets Exfoliation Graphitic carbon nitride Alkali solution
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 -NH2 or bridged -NH- 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. (C) 2017 Elsevier Inc. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Chemistry, Physical
研究领域[WOS]	Chemistry
关键词[WOS]	TRANSITION-METAL DICHALCOGENIDES ; S-TRIAZINE DERIVATIVES ; VISIBLE-LIGHT ; G-C3N4 NANOSHEETS ; PHOTOCATALYTIC PERFORMANCE ; TITANATE NANOSHEETS ; HYDROGEN EVOLUTION ; OXIDE NANOSHEETS ; GRAPHENE ; FERROMAGNETISM
收录类别	SCI
语种	英语
WOS记录号	WOS:000396296400003
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/23662]
专题	上海硅酸盐研究所_无机功能材料与器件重点实验室_期刊论文
作者单位	1.East China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Minist Educ, Shanghai 200237, Peoples R China 2.East China Univ Sci & Technol, State Key Lab Chem Engn, Ctr Computat Chem, Shanghai 200237, Peoples R China 3.East China Univ Sci & Technol, Res Inst Ind Catalysis, Shanghai 200237, Peoples R China 4.Chinese Acad Sci, Shanghai Inst Ceram, Informat Mat & Devices Res Ctr, Shanghai 200050, Peoples R China 5.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R 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.