TY  - JOUR
N2  - 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.
SN  - 20734360
Y1  - 2021///
IS  - 6
KW  - Contact angle; Emulsification; Flavonoids; Fluorine compounds; Hydrophilicity; Membrane fouling; Membranes; Pore size; Surface chemistry; Tannins
KW  -  Ecological impacts; Enhanced surface; Membrane-based process; Oil/water emulsion; Polyvinyl pyrrolidone; Polyvinylidene fluoride membranes; Structural advantage; Wastewater containing oil
KW  -  Microfiltration
TI  - Development of polyvinylidene fluoride membrane via assembly of tannic acid and polyvinylpyrrolidone for filtration of oil/water emulsion
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85103081953&doi=10.3390%2fpolym13060976&partnerID=40&md5=2777e3dac34f383c767e7d603c4da599
N1  - cited By 14
A1  - Nawi, N.I.M.
A1  - Amat, S.O.
A1  - Bilad, M.R.
A1  - Nordin, N.A.H.M.
A1  - Shamsuddin, N.
A1  - Prayogi, S.
A1  - Narkkun, T.
A1  - Faungnawakij, K.
ID  - scholars15111
PB  - MDPI AG
AV  - none
JF  - Polymers
VL  - 13
ER  -