relation: https://khub.utp.edu.my/scholars/15111/
title: Development of polyvinylidene fluoride membrane via assembly of tannic acid and polyvinylpyrrolidone for filtration of oil/water emulsion
creator: Nawi, N.I.M.
creator: Amat, S.O.
creator: Bilad, M.R.
creator: Nordin, N.A.H.M.
creator: Shamsuddin, N.
creator: Prayogi, S.
creator: Narkkun, T.
creator: Faungnawakij, K.
description: Wastewater containing oil/water emulsion has a serious ecological impact and threatens human health. The impact worsens as its volume increases. Oil/water emulsion needs to be treated before it is discharged or reused again for processing. A membrane-based process is considered attractive in effectively treating oil/water emulsion, but progress has been dampened by the membrane fouling issue. The objective of this study is to develop polyvinylidene fluoride (PVDF) membranes customized for oil/water emulsion separation by incorporating assembly of tannic acid (TA) and polyvinylpyrrolidone (PVP) in the polymer matrix. The results show that the assembly of TA/PVP complexation was achieved as observed from the change in colour during the phase inversion and as also proven from the characterization analyses. Incorporation of the TA/PVP assembly leads to enhanced surface hydrophilicity by lowering the contact angle from 82° to 47°. In situ assembly of the TA/PVP complex also leads to enhanced clean water permeability by a factor of four as a result of enhanced mean flow pore size from 0.2 to 0.9 µm. Owing to enhanced surface chemistry and structural advantages, the optimum hydrophilic PVDF/TA/PVP membrane poses permeability of 540.18 L/(m2 h bar) for oil/water emulsion filtration, three times higher than the pristine PVDF membrane used as the reference. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
publisher: MDPI AG
date: 2021
type: Article
type: PeerReviewed
identifier:   Nawi, N.I.M. and Amat, S.O. and Bilad, M.R. and Nordin, N.A.H.M. and Shamsuddin, N. and Prayogi, S. and Narkkun, T. and Faungnawakij, K.  (2021) Development of polyvinylidene fluoride membrane via assembly of tannic acid and polyvinylpyrrolidone for filtration of oil/water emulsion.  Polymers, 13 (6).   ISSN 20734360     
relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85103081953&doi=10.3390%2fpolym13060976&partnerID=40&md5=2777e3dac34f383c767e7d603c4da599
relation: 10.3390/polym13060976
identifier: 10.3390/polym13060976