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Article: Unveiling the Susceptibility of Functional Groups of Poly(ether sulfone)/Polyvinylpyrrolidone Membranes to NaOCl: A Two-Dimensional Correlation Spectroscopic Study

TitleUnveiling the Susceptibility of Functional Groups of Poly(ether sulfone)/Polyvinylpyrrolidone Membranes to NaOCl: A Two-Dimensional Correlation Spectroscopic Study
Authors
Issue Date2017
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journal/esthag
Citation
Environmental Science & Technology, 2017, v. 51 n. 24, p. 14342-14351 How to Cite?
AbstractA clear understanding of membrane aging process is essential for the optimization of chemical cleaning in membrane-based facilities. In this study, two-dimensional (2D) Fourier transformation infrared (FTIR) correlation spectroscopy (CoS) analysis was first used to decipher the sequential order of functional group changes of NaOCl-aged poly(ether sulfone)/polyvinylpyrrolidone (PES/PVP) membranes. The synchronous maps showed 12 major autopeaks in total. Based on the asynchronous maps, a similar aging sequence of membrane groups was clearly identified at three pHs (i.e., 6, 8, and 10): 1463, 1440, and 1410 (cyclic C-H structures) > 1662 (amide groups) > 1700 (succinimide groups) > 1320, 1292 (S=O asymmetric) > 1486, 1580 (aromatic structures) > 1241 (aromatic ether bands) > 1105, 1150 cm-1 (O=S=O symmetric). Among them, membrane chlorination occurred at 1241, 1410, and 1440 cm-1. Moreover, the initial degradation of PVP and the subsequent transformation of PES could be highly responsible for the increased water permeability and the enlargement of membrane pores, respectively, both leading to serious fouling with humic acid filtration. In summary, the 2D-FTIR-CoS analysis is a powerful approach to reveal the interaction mechanisms of NaOCl-membrane and could be also useful to probe the process of membrane fouling and chemical cleaning. © 2017 American Chemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/264045
ISSN
2019 Impact Factor: 7.864
2015 SCImago Journal Rankings: 2.664
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhou, Z-
dc.contributor.authorHuang, G-
dc.contributor.authorXiong, Y-
dc.contributor.authorZhou, M-
dc.contributor.authorZhang, S-
dc.contributor.authorTang, C-
dc.contributor.authorMeng, F-
dc.date.accessioned2018-10-22T07:48:38Z-
dc.date.available2018-10-22T07:48:38Z-
dc.date.issued2017-
dc.identifier.citationEnvironmental Science & Technology, 2017, v. 51 n. 24, p. 14342-14351-
dc.identifier.issn0013-936X-
dc.identifier.urihttp://hdl.handle.net/10722/264045-
dc.description.abstractA clear understanding of membrane aging process is essential for the optimization of chemical cleaning in membrane-based facilities. In this study, two-dimensional (2D) Fourier transformation infrared (FTIR) correlation spectroscopy (CoS) analysis was first used to decipher the sequential order of functional group changes of NaOCl-aged poly(ether sulfone)/polyvinylpyrrolidone (PES/PVP) membranes. The synchronous maps showed 12 major autopeaks in total. Based on the asynchronous maps, a similar aging sequence of membrane groups was clearly identified at three pHs (i.e., 6, 8, and 10): 1463, 1440, and 1410 (cyclic C-H structures) > 1662 (amide groups) > 1700 (succinimide groups) > 1320, 1292 (S=O asymmetric) > 1486, 1580 (aromatic structures) > 1241 (aromatic ether bands) > 1105, 1150 cm-1 (O=S=O symmetric). Among them, membrane chlorination occurred at 1241, 1410, and 1440 cm-1. Moreover, the initial degradation of PVP and the subsequent transformation of PES could be highly responsible for the increased water permeability and the enlargement of membrane pores, respectively, both leading to serious fouling with humic acid filtration. In summary, the 2D-FTIR-CoS analysis is a powerful approach to reveal the interaction mechanisms of NaOCl-membrane and could be also useful to probe the process of membrane fouling and chemical cleaning. © 2017 American Chemical Society.-
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 [JournalTitle], copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see [insert ACS Articles on Request author-directed link to Published Work, see http://pubs.acs.org/page/policy/articlesonrequest/index.html].-
dc.titleUnveiling the Susceptibility of Functional Groups of Poly(ether sulfone)/Polyvinylpyrrolidone Membranes to NaOCl: A Two-Dimensional Correlation Spectroscopic Study-
dc.typeArticle-
dc.identifier.emailTang, C: tangc@hku.hk-
dc.identifier.authorityTang, C=rp01765-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/acs.est.7b03952-
dc.identifier.pmid29135237-
dc.identifier.scopuseid_2-s2.0-85038856426-
dc.identifier.hkuros295726-
dc.identifier.volume51-
dc.identifier.issue24-
dc.identifier.spage14342-
dc.identifier.epage14351-
dc.identifier.isiWOS:000418625900037-
dc.publisher.placeUnited States-

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