A novel highly permeable positively charged nanofiltration membrane based on a nanoporous hyper-crosslinked polyamide barrier layer

	A novel highly permeable positively charged nanofiltration membrane based on a nanoporous hyper-crosslinked polyamide barrier layer
	Wang TY ; Yang YQ ; Zheng JF ; Zhang QF ; Zhang SB
刊名	journal of membrane science
	2013
卷号	448 页码:180-189
关键词	FILM COMPOSITE MEMBRANES HOLLOW-FIBER MEMBRANES INTERFACIAL POLYMERIZATION REVERSE-OSMOSIS INTRINSIC MICROPOROSITY POLYVINYLAMINE PVAM WATER-PURIFICATION TETRAACYL CHLORIDE PAN SUPPORT REMOVAL
ISSN号	0376-7388
通讯作者	zhang sb
中文摘要	a novel positively charged thin film composite nanofiltration (nf) membrane comprising a nanoporous hyper-crosslinked polyamide barrier layer has been developed by utilizing the highly functional 2,2',4,4',6,6'-biphenyl hexaacyl chloride (bhac) monomer bearing a rigid and contorted biphenyl skeleton which undergoes interfacial polymerization with piperazine (pip) on a polyacrylonitrile (pan) support membrane. the physicochemical properties of the corresponding bhac-pip barrier layer were characterized with respect to chemical structure, surface charge performance, morphology as well as film thickness. moreover, the nf properties studied revealed that the optimized bhac-pip composite membrane having a mean effective pore radius of 0.44 nm and molecular weight cut off (mwco) of 570 da exhibits high efficiencies for many ne applications including rejection of divalent cations, removal of basic dyes and selective separation of mixed cations. more importantly, the developed bhac-pip composite membrane shows higher pure water permeability of 15.3 lm(-2) h(-1) bar when compared with a number of previously reported positively charged ne membranes, the common trimesoyl chloride (tmc)-pip membrane, as well as our previously developed 3,3',5,5'-biphenyl tetraacyl chloride (btec)-pip ne membranes. furthermore, comparative studies on the porous properties of the three unsupported bhac-pip, btec-pip and tmc-pip polyamides measured by means of gas sorption experiments indicate the greater porosity of the hyper-crosslinkecl bhac-pip polyamide matrix, which is believed to give rise to the highly permeable feature of the resultant bhac-pip polyamide barrier layer. this study may provide useful insights for the molecular-level design of nf membrane materials with improved water permeability. (c) 2013 elsevier b.v. all rights reserved.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000325168000019
公开日期	2014-04-14
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/49394]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Wang TY,Yang YQ,Zheng JF,et al. A novel highly permeable positively charged nanofiltration membrane based on a nanoporous hyper-crosslinked polyamide barrier layer[J]. journal of membrane science,2013,448:180-189.
APA	Wang TY,Yang YQ,Zheng JF,Zhang QF,&Zhang SB.(2013).A novel highly permeable positively charged nanofiltration membrane based on a nanoporous hyper-crosslinked polyamide barrier layer.journal of membrane science,448,180-189.
MLA	Wang TY,et al."A novel highly permeable positively charged nanofiltration membrane based on a nanoporous hyper-crosslinked polyamide barrier layer".journal of membrane science 448(2013):180-189.