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Article: Polyethyleneimine modified carbohydrate doped thin film composite nanofiltration membrane for purification of drinking water

TitlePolyethyleneimine modified carbohydrate doped thin film composite nanofiltration membrane for purification of drinking water
Authors
KeywordsThin-film composite (TFC)
Nanofiltration membrane preparation
Polyethyleneimine
Carbohydrate
Drinking water
Issue Date2020
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/memsci
Citation
Journal of Membrane Science, 2020, v. 610, p. article no. 118220 How to Cite?
AbstractA green method for safety drinking water production was proposed in this study by the development of a positively charged nanofiltration (PNF) membrane composed of two different functional layers. Glycosyl layer was fabricated through interfacial polymerization in which the performances of sucrose doped NF membrane was superior to the glucose and raffinose doped membranes, which were further enhanced by alkali treatment. Sucrose (0.8 wt%) and NaOH (0.05 mol‧L−1) benefit the formation of higher porosity and better hydrophilicity and offer a high pure water flux (13.5 L m−2 h−1·bar−1) and Na2SO4 rejection (99.3%). Then, the PNF membrane was acquired by coating polyethyleneimine (PEI) on the sucrose-polyamide layer. The concentration of PEI and grafting time were both studied and the optimal membrane showed an excellent performance for heavy metals removal. The as-developed membrane has found its potential application in drinking water purification which gave 90% rejection for heavy metals and the permeance reached to 7.4 L m−2 h−1·bar−1. With the proposed method, the trace elements were retained partially which was beneficial to the human body and the toxic metals were kept within the limits.
Persistent Identifierhttp://hdl.handle.net/10722/284808
ISSN
2023 Impact Factor: 8.4
2023 SCImago Journal Rankings: 1.848
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorShen, Q-
dc.contributor.authorXu, SJ-
dc.contributor.authorDong, ZQ-
dc.contributor.authorZhang, HZ-
dc.contributor.authorXu, ZL-
dc.contributor.authorTang, CY-
dc.date.accessioned2020-08-07T09:02:54Z-
dc.date.available2020-08-07T09:02:54Z-
dc.date.issued2020-
dc.identifier.citationJournal of Membrane Science, 2020, v. 610, p. article no. 118220-
dc.identifier.issn0376-7388-
dc.identifier.urihttp://hdl.handle.net/10722/284808-
dc.description.abstractA green method for safety drinking water production was proposed in this study by the development of a positively charged nanofiltration (PNF) membrane composed of two different functional layers. Glycosyl layer was fabricated through interfacial polymerization in which the performances of sucrose doped NF membrane was superior to the glucose and raffinose doped membranes, which were further enhanced by alkali treatment. Sucrose (0.8 wt%) and NaOH (0.05 mol‧L−1) benefit the formation of higher porosity and better hydrophilicity and offer a high pure water flux (13.5 L m−2 h−1·bar−1) and Na2SO4 rejection (99.3%). Then, the PNF membrane was acquired by coating polyethyleneimine (PEI) on the sucrose-polyamide layer. The concentration of PEI and grafting time were both studied and the optimal membrane showed an excellent performance for heavy metals removal. The as-developed membrane has found its potential application in drinking water purification which gave 90% rejection for heavy metals and the permeance reached to 7.4 L m−2 h−1·bar−1. With the proposed method, the trace elements were retained partially which was beneficial to the human body and the toxic metals were kept within the limits.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/memsci-
dc.relation.ispartofJournal of Membrane Science-
dc.subjectThin-film composite (TFC)-
dc.subjectNanofiltration membrane preparation-
dc.subjectPolyethyleneimine-
dc.subjectCarbohydrate-
dc.subjectDrinking water-
dc.titlePolyethyleneimine modified carbohydrate doped thin film composite nanofiltration membrane for purification of drinking water-
dc.typeArticle-
dc.identifier.emailTang, CY: tangc@hku.hk-
dc.identifier.authorityTang, CY=rp01765-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.memsci.2020.118220-
dc.identifier.scopuseid_2-s2.0-85084978946-
dc.identifier.hkuros312255-
dc.identifier.volume610-
dc.identifier.spagearticle no. 118220-
dc.identifier.epagearticle no. 118220-
dc.identifier.isiWOS:000555547700010-
dc.publisher.placeNetherlands-
dc.identifier.issnl0376-7388-

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