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dc.contributor.authorChakrabarty, Tina*
dc.contributor.authorPerez Manriquez, Liliana*
dc.contributor.authorNeelakanda, Pradeep*
dc.contributor.authorPeinemann, Klaus-Viktor*
dc.date.accessioned2017-05-04T06:39:20Z
dc.date.available2017-05-04T06:39:20Z
dc.date.issued2017-04-27en
dc.identifier.citationChakrabarty T, Pérez-Manríquez L, Neelakanda P, Peinemann K-V (2017) Bioinspired tannic acid-copper complexes as selective coating for nanofiltration membranes. Separation and Purification Technology. Available: http://dx.doi.org/10.1016/j.seppur.2017.04.043.en
dc.identifier.issn1383-5866en
dc.identifier.doi10.1016/j.seppur.2017.04.043en
dc.identifier.urihttp://hdl.handle.net/10754/623321
dc.description.abstractBio-polyphenols that are present in tea, date fruits, chockolate and many other plants have been recognized as scaffold material for the manufacture of composite filtration membranes. These phenolic biomolecules possess abundant gallol (1,2,3-trihydroxyphenyl) and catechol (1,2-dihydroxyphenyl) functional groups, which allow the spontaneous formation of a thin polymerized layer at the right pH conditions. Here, we report a facile and cost-effective method to coat porous membranes via the complexation of tannic acid (TA) and cupric acetate (mono hydrate) through co-deposition. The modified membranes were investigated by XPS, ATR/FTIR, water contact angle, SEM and water permeance for a structural and morphological analysis. The obtained results reveal that the modified membranes with TA and cupric acetate (CuII) developed a thin skin layer, which showed excellent hydrophilicity with good water permeance. These membranes were tested with different molecular weight polyethylene glycols (PEG) in aqueous solution; the MWCO was around 600 Daltons.en
dc.description.sponsorshipWe gratefully acknowledge the financial support from King Abdullah University of Science and Technology (KAUST). We also thank Mohamed Nejib Hedhiliand and Ali Behzad from KAUST Analytical core lab for XPS and SEM analysis.en
dc.publisherElsevier BVen
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S1383586617303155en
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Separation and Purification Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Separation and Purification Technology, [, , (2017-04-27)] DOI: 10.1016/j.seppur.2017.04.043 . © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectPolyphenolsen
dc.subjectTannic acid-copper complexen
dc.subjectMembrane surface modificationen
dc.subjectNanofiltrationen
dc.titleBioinspired tannic acid-copper complexes as selective coating for nanofiltration membranesen
dc.typeArticleen
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center*
dc.identifier.journalSeparation and Purification Technologyen
dc.eprint.versionPost-printen
kaust.authorChakrabarty, Tina*
kaust.authorPerez Manriquez, Liliana*
kaust.authorNeelakanda, Pradeep*
kaust.authorPeinemann, Klaus-Viktor*


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