High-performance polyamide nanofiltration membrane with arch-bridge structure on a highly hydrated cellulose nanofiber support

doi:10.1007/s40843-020-1335-x

SIC OpenIR

	High-performance polyamide nanofiltration membrane with arch-bridge structure on a highly hydrated cellulose nanofiber support
	Teng, XX; Fang, WX; Liang, YZ; Lin, SH; Lin, HZ; Liu, SS; Wang, ZY; Zhu, YZ; Jin, J
	2020-05-18
Source Publication	SCIENCE CHINA-MATERIALS
ISSN	2095-8226
Subtype	Article; Early Access
Abstract	Nanofiltration (NF) membranes with outstanding performance are highly demanded for more efficient desalination and wastewater treatment. However, improving water permeance while maintaining high solute rejection by using the current membrane fabrication techniques remains a challenge. Herein, polyamide (PA) NF membrane with archbridge structure is successfully prepared via interfacial polymerization (IP) on a composite support membrane of saltreinforced hydrophilic bacterial cellulose nanofibers (BCNs) nanofilm/polytetrafluoroethylene (BCNs/PTFE). The strong hydration of BCNs promotes Marangoni convection along water/organic solvent interface during the IP process, which creates extra area for interfacial reaction and produces a thin PA active layer with arch-bridge structures. These arch-bridge structures endow the resulting PA active layer with substantial larger active area for water permeation. Consequently, the PA NF membrane exhibits exceptional desalination performance with a permeance up to 42.5 L m(-2) h(-1) bar(-1) and a rejection of Na2SO4 as high as 99.1%, yielding an overall desalination performance better than almost all of the state of the art NF membranes reported so far in terms of perm selectivity.
DOI	10.1007/s40843-020-1335-x
WOS Keyword	3,3',5,5'-BIPHENYL TETRAACYL CHLORIDE ; INTERFACIAL POLYMERIZATION ; HIGH-FLUX ; WATER-RESOURCES ; HIGH-REJECTION ; PH ; FABRICATION ; CHEMISTRY ; TRANSPORT ; NETWORKS
Language	英语
WOS Research Area	Materials Science
Publisher	SCIENCE PRESS
Citation statistics	Cited Times:1[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.sic.ac.cn/handle/331005/28058
Collection	中国科学院上海硅酸盐研究所
Recommended Citation GB/T 7714	Teng, XX,Fang, WX,Liang, YZ,et al. High-performance polyamide nanofiltration membrane with arch-bridge structure on a highly hydrated cellulose nanofiber support[J]. SCIENCE CHINA-MATERIALS,2020.
APA	Teng, XX.,Fang, WX.,Liang, YZ.,Lin, SH.,Lin, HZ.,...&Jin, J.(2020).High-performance polyamide nanofiltration membrane with arch-bridge structure on a highly hydrated cellulose nanofiber support.SCIENCE CHINA-MATERIALS.
MLA	Teng, XX,et al."High-performance polyamide nanofiltration membrane with arch-bridge structure on a highly hydrated cellulose nanofiber support".SCIENCE CHINA-MATERIALS (2020).

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