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, Evgeny 4; Peng, Zheng 4
刊名	Advanced Materials
	2018
卷号	30 期号:16
ISSN号	09359648
DOI	10.1002/adma.201705775
英文摘要	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 NH2and/or SH with OCOH as well as the nucleophilic addition reactions of NH2to COC, 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. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
出版者	Wiley-VCH Verlag
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/25185]
专题	中国科学院上海硅酸盐研究所
作者单位	1.CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, 100 Haike Road, Shanghai; 201210, China; 2.Department of Electronic Information Materials School of Materials Science and Engineering, Shanghai University, 99 Shangda Road, Shanghai; 200444, China; 3.School of Chemical Sciences University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing; 100049, China; 4.School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai; 201210, China
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).