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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 PublicationSCIENCE CHINA-MATERIALS
ISSN2095-8226
SubtypeArticle; Early Access
AbstractNanofiltration (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.
DOI10.1007/s40843-020-1335-x
WOS Keyword3,3',5,5'-BIPHENYL TETRAACYL CHLORIDE ; INTERFACIAL POLYMERIZATION ; HIGH-FLUX ; WATER-RESOURCES ; HIGH-REJECTION ; PH ; FABRICATION ; CHEMISTRY ; TRANSPORT ; NETWORKS
Language英语
WOS Research AreaMaterials Science
PublisherSCIENCE PRESS
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://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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