Surface chemical heterogeneity of polyamide RO membranes: Measurements and implications
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Youngiin | - |
dc.contributor.author | Lee, Sangyoup | - |
dc.contributor.author | Kuk, Jihoon | - |
dc.contributor.author | Hong, Seungkwan | - |
dc.date.accessioned | 2021-09-04T14:21:34Z | - |
dc.date.available | 2021-09-04T14:21:34Z | - |
dc.date.created | 2021-06-16 | - |
dc.date.issued | 2015-07-01 | - |
dc.identifier.issn | 0011-9164 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/93041 | - |
dc.description.abstract | The chemical heterogeneity (charge distribution) of polyamide reverse osmosis (RO) membrane surfaces and its influence on membrane fouling were investigated using atomic force microscopy (AFM). Negatively charged carboxyl modified latex (CML) and positively charged aliphatic amine latex (AAL) particles were employed to make AFM colloidal probes. The adhesive forces were significantly higher with the AAL probe due to negatively charged membrane surfaces. The chemical heterogeneity measured by AFM colloidal probes indicated that RO membranes could have chemically heterogeneous surfaces even if they exhibited similar average surface properties including zeta potential, contact angle and surface roughness. By performing fouling experiments with two commercial RO membranes of different chemical heterogeneities, it was demonstrated that RO membrane with high chemical heterogeneity was more prone to fouling, suggesting that surface charge distribution is one of the key factors governing RO membrane fouling. Consequently, surface chemical heterogeneity provides a new tool for accessing membrane fouling mechanisms and a novel concept for developing fouling resistant RO membranes. (C) 2015 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | REVERSE-OSMOSIS MEMBRANES | - |
dc.subject | ATOMIC-FORCE MICROSCOPY | - |
dc.subject | SOLUTION CHEMISTRY | - |
dc.subject | NANOFILTRATION MEMBRANES | - |
dc.subject | SEAWATER DESALINATION | - |
dc.subject | SOLUTE INTERACTIONS | - |
dc.subject | FUNCTIONAL-GROUPS | - |
dc.subject | POROUS-MEDIA | - |
dc.subject | DEPOSITION | - |
dc.subject | QUANTIFICATION | - |
dc.title | Surface chemical heterogeneity of polyamide RO membranes: Measurements and implications | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Youngiin | - |
dc.contributor.affiliatedAuthor | Hong, Seungkwan | - |
dc.identifier.doi | 10.1016/j.desal.2015.04.006 | - |
dc.identifier.scopusid | 2-s2.0-84927635515 | - |
dc.identifier.wosid | 000355371500016 | - |
dc.identifier.bibliographicCitation | DESALINATION, v.367, pp.154 - 160 | - |
dc.relation.isPartOf | DESALINATION | - |
dc.citation.title | DESALINATION | - |
dc.citation.volume | 367 | - |
dc.citation.startPage | 154 | - |
dc.citation.endPage | 160 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Water Resources | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.relation.journalWebOfScienceCategory | Water Resources | - |
dc.subject.keywordPlus | REVERSE-OSMOSIS MEMBRANES | - |
dc.subject.keywordPlus | ATOMIC-FORCE MICROSCOPY | - |
dc.subject.keywordPlus | SOLUTION CHEMISTRY | - |
dc.subject.keywordPlus | NANOFILTRATION MEMBRANES | - |
dc.subject.keywordPlus | SEAWATER DESALINATION | - |
dc.subject.keywordPlus | SOLUTE INTERACTIONS | - |
dc.subject.keywordPlus | FUNCTIONAL-GROUPS | - |
dc.subject.keywordPlus | POROUS-MEDIA | - |
dc.subject.keywordPlus | DEPOSITION | - |
dc.subject.keywordPlus | QUANTIFICATION | - |
dc.subject.keywordAuthor | Membrane surface characterization | - |
dc.subject.keywordAuthor | Atomic force microscopy | - |
dc.subject.keywordAuthor | Surface chemical heterogeneity | - |
dc.subject.keywordAuthor | RO membrane | - |
dc.subject.keywordAuthor | Membrane fouling | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.