Construction of Metal-Ligand-Coordinated Multilayers and Their Selective Separation Behavior

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	Construction of Metal-Ligand-Coordinated Multilayers and Their Selective Separation Behavior
	Ji, Shulan; Ruan, Zhengang; Zhang, Guojun; Liu, Zhongzhou
刊名	LANGMUIR
	2010-04-06
卷号	26 期号:7 页码:4782-4789
英文摘要	In this article, a layer-by-layer (LbL)-assembled coordination multilayer on planar and 3D substrates was explored by the alternate deposition of a transition-metal-containing polyelectrolyte and a ligand-containing polymer via the formation of complexes. The metal-ligand coordination between the building blocks of Co(2+)-exchanged poly(styrene sulfonate) (PSS) and poly(4-vinyl pyridine) (P4 VP) has been demonstrated using UV-vis, FTIR, and XPS. The film thickness. structure, and morphology as well as the wettability as a function of bilayer number have been systematically investigated by profilometry, SEM. AFM, and contact angle analyzers. For the purpose of separation applications, the metal-ligand-coordinated multilayer was assembled on both flat sheet and hollow fiber polymeric porous substrates using a dynamic pressure-driven LbL technique. It was demonstrated that the LbL-assembled PSS(Co)(1/2)/P4 VP multilayer membrane had high dehydration performance with respect to different solvent-water mixtures; it also had aromatic compound permselectivity from aromatic-aliphatic hydrocarbons and water-softening capacity. Meanwhile, the successful assembly of multilayers on hollow fibers indicates that the dynamic pressure-driven LbL technique is a unique approach to the construction of multilayers on porous 3-D substrates. Therefore, the metal-ligand-coordinated self-assembly could emerge as a powerful technique for the preparation of a range of separation membranes in different types of modules.
WOS记录号	WOS:000275995100041
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/21310]
专题	生态环境研究中心_水污染控制实验室
推荐引用方式 GB/T 7714	Ji, Shulan,Ruan, Zhengang,Zhang, Guojun,et al. Construction of Metal-Ligand-Coordinated Multilayers and Their Selective Separation Behavior[J]. LANGMUIR,2010,26(7):4782-4789.
APA	Ji, Shulan,Ruan, Zhengang,Zhang, Guojun,&Liu, Zhongzhou.(2010).Construction of Metal-Ligand-Coordinated Multilayers and Their Selective Separation Behavior.LANGMUIR,26(7),4782-4789.
MLA	Ji, Shulan,et al."Construction of Metal-Ligand-Coordinated Multilayers and Their Selective Separation Behavior".LANGMUIR 26.7(2010):4782-4789.