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Self-Assembly of Thiourea-Crosslinked Graphene Oxide Framework Membranes toward Separation of Small Molecules | |
2018-04-19 | |
发表期刊 | ADVANCED MATERIALS (IF:27.4[JCR-2023],30.2[5-Year]) |
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 | 正在获取...
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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). |
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