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Kwon, Young-Nam
Superior Membrane-based Advanced Research & Technology (SMART) Lab
Research Interests
  • Membrane, Reverse(Forward) osmosis, Membrane distillation, Hydrate-induced ice desalination

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Effect of membrane chemistry and coating layer on physiochemical properties of thin film composite polyamide RO and NF membranes I. FTIR and XPS characterization of polyamide and coating layer chemistry

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dc.contributor.author Kwon, Young-Nam ko
dc.contributor.author Tang, Chuyang Y ko
dc.contributor.author Leckie, James O. ko
dc.date.available 2015-01-08T00:04:19Z -
dc.date.created 2015-01-07 ko
dc.date.issued 2009-06 ko
dc.identifier.citation DESALINATION, v.242, no.1-3, pp.149 - 167 ko
dc.identifier.issn 0011-9164 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/9939 -
dc.description.abstract The physiochemical properties of reserve osmosis (RO) and nanofiltration (NF) polyamide (PA) membranes are largely determined by their PA chemistry and coatings, if any. Knowledge on such inherent relationship is critically needed in advancing membrane technology. This paper presents a consistent and in-depth characterization on diagnosing the chemistry of polyamide and the presence of any coating or modifying agent. Fourier-transform infrared (FTIR) and x-ray photoelectron spectra (XPS) of 17 commonly used commercial thin film composite polyamide RO and NF membranes are presented. The FTIR spectra for fully aromatic trimesoyl chloride and 1,3-benzenediamine based membranes had an amide 11 band (1541 cm (1)) and an aromatic amide band (1609 cm(-1)) that were absent for the semi-aromatic membranes. Consistent with that, the XPS binding energy shift for carbon atoms in fully aromatic amide groups was higher than that for semi-aromatic ones likely due to the more electron withdrawing environment. An additional intermediate peak with a binding energy shift of 1.1-1.6 eV was present in the XPS spectra of C(1s) for some commercial RO and NF membranes. The additional peak, Coupled with FITR analysis over the high wave number region and XPS elemental analysis, provided consistent evidence that these membranes were either coated with an additional coating layer or had a modified PA chemistry. ko
dc.description.statementofresponsibility close -
dc.language 영어 ko
dc.publisher ELSEVIER SCIENCE BV ko
dc.title Effect of membrane chemistry and coating layer on physiochemical properties of thin film composite polyamide RO and NF membranes I. FTIR and XPS characterization of polyamide and coating layer chemistry ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-64649091264 ko
dc.identifier.wosid 000266152500013 ko
dc.type.rims ART ko
dc.description.wostc 153 *
dc.description.scopustc 152 *
dc.date.tcdate 2015-12-28 *
dc.date.scptcdate 2015-11-04 *
dc.identifier.doi 10.1016/j.desal.2008.04.003 ko
dc.identifier.url http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=64649091264 ko
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