Self-Assembly of Thiourea-Crosslinked Graphene Oxide Framework Membranes toward Separation of Small Molecules

doi:10.1002/adma.201705775

	Self-Assembly of Thiourea-Crosslinked Graphene Oxide Framework Membranes toward Separation of Small Molecules
	Yang, Jingjing 1,2; Gong, Dian 1,3; Li, Guihua 1; Zeng, Gaofeng 1,4; Wang, Qiyan 1,3; Zhang, Yelei 1,3; Liu, Guojuan 1; Wu, Ping 1; Vovk, Evgeny4 ; Peng, Zheng4 ; Zhou, Xiaohong4 ; Yang, Yong4 ; Liu, Zhi4 ; Sun, Yuhan1,4
	2018-04-19
发表期刊	ADVANCED MATERIALS
ISSN	0935-9648
卷号	30 期号:16
发表状态	已发表
DOI	10.1002/adma.201705775
摘要	The poor mechanical strength of graphene oxide (GO) membranes, caused by the weak interlamellar interactions, poses a critical challenge for any practical application. In addition, intrinsic but large-sized 2D channels of stacked GO membranes lead to low selectivity for small molecules. To address the mechanical strength and 2D channel size control, thiourea covalent-linked graphene oxide framework (TU-GOF) membranes on porous ceramics are developed through a facile hydrothermal self-assembly synthesis. With this strategy, thiourea-bridged GO laminates periodically through the dehydration condensation reactions via -NH2 and/or -SH with -O=C-OH as well as the nucleophilic addition reactions of -NH2 to C-O-C, leading to narrowed and structurally well-defined 2D channels due to the small dimension of the covalent TU-link and the deoxygenated processes. The resultant TU-GOF/ceramic composite membranes feature excellent sieving capabilities for small species, leading to high hydrogen permselectivities and nearly complete rejections for methanol and small ions in gas, solvent, and saline water separations. Moreover, the covalent bonding formed at the GO/support and GO/GO interfaces endows the composite membrane with significantly enhanced stability.
关键词	graphene oxide framework graphene oxide membrane mechanical stability molecular sieving self-assembly
收录类别	SCI ; SCIE ; EI
语种	英语
资助项目	China Ministry of Science and Technology[2016YFA0202802]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000430460100008
出版者	WILEY-V C H VERLAG GMBH
WOS关键词	COMPOSITE MEMBRANES ; CARBON NANOTUBES ; ORGANIC-SOLVENTS ; WATER ; DEHYDRATION ; NANOFILTRATION ; PERVAPORATION ; PERFORMANCE ; FABRICATION ; REDUCTION
原始文献类型	Article
引用统计
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/20831
专题	物质科学与技术学院物质科学与技术学院_特聘教授组_孙予罕组物质科学与技术学院_PI研究组_杨永组大科学中心_PI研究组_刘志组物质科学与技术学院_科学装置(X)_活细胞结构与功能成像等线站工程项目物质科学与技术学院_硕士生物质科学与技术学院_博士生
通讯作者	Zeng, Gaofeng; Sun, Yuhan
作者单位	1.Chinese Acad Sci, Shanghai Adv Res Inst, CAS Key Lab Low Carbon Convers Sci & Engn, 100 Haike Rd, Shanghai 201210, Peoples R China 2.Shanghai Univ, Sch Mat Sci & Engn, Dept Elect Informat Mat, 99 Shangda Rd, Shanghai 200444, Peoples R China 3.Univ Chinese Acad Sci, Sch Chem Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 4.ShanghaiTech Univ, Sch Phys Sci & Technol, 393 Middle Huaxia Rd, Shanghai 201210, Peoples R China
通讯作者单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Yang, Jingjing,Gong, Dian,Li, Guihua,et al. Self-Assembly of Thiourea-Crosslinked Graphene Oxide Framework Membranes toward Separation of Small Molecules[J]. ADVANCED MATERIALS,2018,30(16).
APA	Yang, Jingjing.,Gong, Dian.,Li, Guihua.,Zeng, Gaofeng.,Wang, Qiyan.,...&Sun, Yuhan.(2018).Self-Assembly of Thiourea-Crosslinked Graphene Oxide Framework Membranes toward Separation of Small Molecules.ADVANCED MATERIALS,30(16).
MLA	Yang, Jingjing,et al."Self-Assembly of Thiourea-Crosslinked Graphene Oxide Framework Membranes toward Separation of Small Molecules".ADVANCED MATERIALS 30.16(2018).