Manipulating the interfacial interactions of composite membranes via a mussel-inspired approach for enhanced separation selectivity

	Manipulating the interfacial interactions of composite membranes via a mussel-inspired approach for enhanced separation selectivity
	Zhao, J; Fang, CH; Zhu, YW; He, GW; Pan, FS; Jiang, ZY; Zhang, P; Cao, XZ; Wang, BY; 张鹏(正)
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2015
卷号	3 期号:39 页码:19980-19988
英文摘要	For the broadly utilized composite membranes with dense separation layers and porous support layers, the rational manipulation of interfacial interactions between these two layers is vital in optimizing the membrane structure and the associated performance. In this study, we report a facile mussel-inspired approach to enhance the separation selectivity of composite membranes by co-depositing biomimetic adhesive dopamine and poly(ethylene imine) (PEI) on a support layer and then coating with sodium alginate (SA) as the separation layer. PEI is anchored onto the support layer surface through the reaction with dopamine during the polydopamine (PDA) formation process, thus incorporating the electrostatic attraction interaction into the interface in addition to the hydrogen bond interaction between PDA and SA. Using water/alcohol separation as the model system, the separation factor of the SA/PEI-PDA/PAN membrane can reach 1807, which is 29.6 and 6.8 times higher than those of SA/PAN and SA/PDA/PAN membranes, respectively. The remarkably enhanced separation factor arises from the optimal free volume property and swelling resistance of the membrane under the optimized interfacial interactions between the separation layer and support layer. This study may present an efficient and facile approach for tailoring the membrane structure for an enhanced separation performance.
学科主题	Chemistry; Energy & Fuels; Materials Science
类目[WOS]	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
收录类别	SCI ; EI
WOS记录号	WOS:000362041300045
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/228777]
专题	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Zhao, J,Fang, CH,Zhu, YW,et al. Manipulating the interfacial interactions of composite membranes via a mussel-inspired approach for enhanced separation selectivity[J]. JOURNAL OF MATERIALS CHEMISTRY A,2015,3(39):19980-19988.
APA	Zhao, J.,Fang, CH.,Zhu, YW.,He, GW.,Pan, FS.,...&王宝义.(2015).Manipulating the interfacial interactions of composite membranes via a mussel-inspired approach for enhanced separation selectivity.JOURNAL OF MATERIALS CHEMISTRY A,3(39),19980-19988.
MLA	Zhao, J,et al."Manipulating the interfacial interactions of composite membranes via a mussel-inspired approach for enhanced separation selectivity".JOURNAL OF MATERIALS CHEMISTRY A 3.39(2015):19980-19988.