File Download
  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Porous substrate affects fouling propensity of thin-film composite nanofiltration membranes

TitlePorous substrate affects fouling propensity of thin-film composite nanofiltration membranes
Authors
KeywordsFouling
Funnel effect
Localized flux
Nanofiltrtion memrbane
Polyamide film
Issue Date1-Nov-2022
PublisherElsevier
Citation
Journal of Membrane Science Letters, 2022, v. 2, n. 2 How to Cite?
AbstractFouling is a critical consideration for the design of thin-film composite (TFC) nanofiltration membranes. Tradi-tional wisdom believes that fouling propensity is primarily dictated by membrane surface properties while porous substrates play little role (on the basis on the latter have no effect on the foulant-membrane interaction). Never-theless, porous substrates can regulate the water transport pathways, resulting in uneven water flux distribution over the membrane surface. For the first time, we experimentally investigated the micro-scale water flux distri-bution for nanofiltration membranes with different substrate porosities and the impact of such flux distribution pattern on fouling. With gold nanoparticles as tracers, we demonstrated more evenly distributed water flux at increasing substrate porosity. This was found to effectively alleviate membrane fouling by eliminating localized hot spots of high flux. Furthermore, higher substrate porosity also effectively enhanced the membrane water per-meance due to the optimized water transport pathways. Our study reveals the fundamental relationship between the micro-scale transport behavior and the membrane fouling propensity, which provides a firm basis for the rational design of TFC membranes toward better separation performance.
Persistent Identifierhttp://hdl.handle.net/10722/331264
ISSN
2023 Impact Factor: 4.9
2023 SCImago Journal Rankings: 0.952
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWu, CY-
dc.contributor.authorLong, L-
dc.contributor.authorYang, Z-
dc.contributor.authorTang, CY-
dc.date.accessioned2023-09-21T06:54:10Z-
dc.date.available2023-09-21T06:54:10Z-
dc.date.issued2022-11-01-
dc.identifier.citationJournal of Membrane Science Letters, 2022, v. 2, n. 2-
dc.identifier.issn2772-4212-
dc.identifier.urihttp://hdl.handle.net/10722/331264-
dc.description.abstractFouling is a critical consideration for the design of thin-film composite (TFC) nanofiltration membranes. Tradi-tional wisdom believes that fouling propensity is primarily dictated by membrane surface properties while porous substrates play little role (on the basis on the latter have no effect on the foulant-membrane interaction). Never-theless, porous substrates can regulate the water transport pathways, resulting in uneven water flux distribution over the membrane surface. For the first time, we experimentally investigated the micro-scale water flux distri-bution for nanofiltration membranes with different substrate porosities and the impact of such flux distribution pattern on fouling. With gold nanoparticles as tracers, we demonstrated more evenly distributed water flux at increasing substrate porosity. This was found to effectively alleviate membrane fouling by eliminating localized hot spots of high flux. Furthermore, higher substrate porosity also effectively enhanced the membrane water per-meance due to the optimized water transport pathways. Our study reveals the fundamental relationship between the micro-scale transport behavior and the membrane fouling propensity, which provides a firm basis for the rational design of TFC membranes toward better separation performance.-
dc.languageeng-
dc.publisherElsevier-
dc.relation.ispartofJournal of Membrane Science Letters-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectFouling-
dc.subjectFunnel effect-
dc.subjectLocalized flux-
dc.subjectNanofiltrtion memrbane-
dc.subjectPolyamide film-
dc.titlePorous substrate affects fouling propensity of thin-film composite nanofiltration membranes-
dc.typeArticle-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1016/j.memlet.2022.100036-
dc.identifier.scopuseid_2-s2.0-85141538364-
dc.identifier.volume2-
dc.identifier.issue2-
dc.identifier.isiWOS:001019566800004-
dc.publisher.placeAMSTERDAM-
dc.identifier.issnl2772-4212-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats