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Article: Hydrophilic Selective Nanochannels Created by Metal Organic Frameworks in Nanofiltration Membranes Enhance Rejection of Hydrophobic Endocrine-Disrupting Compounds

TitleHydrophilic Selective Nanochannels Created by Metal Organic Frameworks in Nanofiltration Membranes Enhance Rejection of Hydrophobic Endocrine-Disrupting Compounds
Authors
KeywordsAmides
Hydrophilicity
Organic polymers
Membranes
Metal organic frameworks
Issue Date2019
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journal/esthag
Citation
Environmental Science & Technology, 2019, v. 53 n. 23, p. 13776-13783 How to Cite?
AbstractRejection of endocrine-disrupting compounds (EDCs) by thin-film composite (TFC) polyamide membranes remains a challenging issue in wastewater reclamation applications because of the unfavorable hydrophobic interaction between EDCs and membranes. Herein, we investigated the incorporation of hydrophilic metal organic frameworks (MOFs) into the polyamide layer to create water/EDC selective nanochannels for enhancing EDC rejection. Using MIL-101(Cr) MOF as a nanofiller, the water flux of the MOF0.20 TFC membrane (0.20 wt/v % MOF in n-hexane) was 2.3 times that of the control. The rejection rates against EDCs involving methylparaben, propylparaben, benzylparaben, and bisphenol A (BPA) by MOF0.20 were also significantly higher than the respective values of the control membrane, with the water/EDC selectivity (e.g., A/BBPA) of MOF0.20 approximately doubled compared to that of the control. Further single salt rejection and gold nanoparticle filtration tests confirmed that the hydrophilic nanochannels created by MOFs played a critical role in membrane transport, accounting for the significant enhancement of EDC rejection of the modified TFC membrane. This study demonstrates a promising membrane modification protocol using hydrophilic MOFs for achieving selective removal of EDCs and high-efficient wastewater reclamation using TFC membranes.
Persistent Identifierhttp://hdl.handle.net/10722/284971
ISSN
2019 Impact Factor: 7.864
2015 SCImago Journal Rankings: 2.664
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorDai, R-
dc.contributor.authorGuo, H-
dc.contributor.authorTang, CY-
dc.contributor.authorChen, M-
dc.contributor.authorLi, J-
dc.contributor.authorWang, Z-
dc.date.accessioned2020-08-07T09:05:02Z-
dc.date.available2020-08-07T09:05:02Z-
dc.date.issued2019-
dc.identifier.citationEnvironmental Science & Technology, 2019, v. 53 n. 23, p. 13776-13783-
dc.identifier.issn0013-936X-
dc.identifier.urihttp://hdl.handle.net/10722/284971-
dc.description.abstractRejection of endocrine-disrupting compounds (EDCs) by thin-film composite (TFC) polyamide membranes remains a challenging issue in wastewater reclamation applications because of the unfavorable hydrophobic interaction between EDCs and membranes. Herein, we investigated the incorporation of hydrophilic metal organic frameworks (MOFs) into the polyamide layer to create water/EDC selective nanochannels for enhancing EDC rejection. Using MIL-101(Cr) MOF as a nanofiller, the water flux of the MOF0.20 TFC membrane (0.20 wt/v % MOF in n-hexane) was 2.3 times that of the control. The rejection rates against EDCs involving methylparaben, propylparaben, benzylparaben, and bisphenol A (BPA) by MOF0.20 were also significantly higher than the respective values of the control membrane, with the water/EDC selectivity (e.g., A/BBPA) of MOF0.20 approximately doubled compared to that of the control. Further single salt rejection and gold nanoparticle filtration tests confirmed that the hydrophilic nanochannels created by MOFs played a critical role in membrane transport, accounting for the significant enhancement of EDC rejection of the modified TFC membrane. This study demonstrates a promising membrane modification protocol using hydrophilic MOFs for achieving selective removal of EDCs and high-efficient wastewater reclamation using TFC membranes.-
dc.languageeng-
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journal/esthag-
dc.relation.ispartofEnvironmental Science & Technology-
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in Environmental Science & Technology, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acs.est.9b05343-
dc.subjectAmides-
dc.subjectHydrophilicity-
dc.subjectOrganic polymers-
dc.subjectMembranes-
dc.subjectMetal organic frameworks-
dc.titleHydrophilic Selective Nanochannels Created by Metal Organic Frameworks in Nanofiltration Membranes Enhance Rejection of Hydrophobic Endocrine-Disrupting Compounds-
dc.typeArticle-
dc.identifier.emailGuo, H: guohao7@hku.hk-
dc.identifier.emailTang, CY: tangc@hku.hk-
dc.identifier.authorityTang, CY=rp01765-
dc.description.naturepostprint-
dc.identifier.doi10.1021/acs.est.9b05343-
dc.identifier.pmid31689090-
dc.identifier.scopuseid_2-s2.0-85075742439-
dc.identifier.hkuros312220-
dc.identifier.volume53-
dc.identifier.issue23-
dc.identifier.spage13776-
dc.identifier.epage13783-
dc.identifier.isiWOS:000500838900025-
dc.publisher.placeUnited States-

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