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Preparation and characterization of PVDF-TiO2 mixed-matrix membrane with PVP and PEG as pore-forming agents for BSA rejection

Gayatri, Rianyza and Fizal, Ahmad Noor Syimir and Erna Yuliwati, Erna Yuliwati and Hossain, Md. Sohrab and Jaafar, Juhana and Zulkifli, Muzafar and Taweepreda, Wirach and Ahmad Yahaya, Ahmad Naim (2023) Preparation and characterization of PVDF-TiO2 mixed-matrix membrane with PVP and PEG as pore-forming agents for BSA rejection. Nanomaterials, 13 (6). ISSN 2079-4991

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Official URL: http://dx.doi.org/10.3390/nano13061023

Abstract

Polymeric membranes offer straightforward modification methods that make industry scaling affordable and easy; however, these materials are hydrophobic, prone to fouling, and vulnerable to extreme operating conditions. Various attempts were made in this study to fix the challenges in using polymeric membranes and create mixed-matrix membrane (MMMs) with improved properties and hydrophilicity by adding titanium dioxide (TiO2) and pore-forming agents to hydrophobic polyvinylidene fluoride (PVDF). The PVDF mixed-matrix ultrafiltration membranes in this study were made using the non-solvent phase inversion approach which is a simple and effective method for increasing the hydrophilic nature of membranes. Polyvinylpyrrolidone (PVP) and polyethylene glycol (PEG) as pore-forming chemicals were created. Pure water flux, BSA flux, and BSA rejection were calculated to evaluate the mixed-matrix membrane’s efficiency. Bovine serum albumin (BSA) solution was employed in this study to examine the protein rejection ability. Increases in hydrophilicity, viscosity, and flux in pure water and BSA solution were achieved using PVP and PEG additives. The PVDF membrane’s hydrophilicity was raised with the addition of TiO2, showing an increased contact angle to 71°. The results show that the PVDF–PVP–TiO2 membrane achieved its optimum water flux of 97 L/(m2h) while the PVDF–PEG–TiO2 membrane rejected BSA at a rate greater than 97%. The findings demonstrate that use of a support or additive improved filtration performance compared to a pristine polymeric membrane by increasing its hydrophilicity.

Item Type:Article
Uncontrolled Keywords:BSA rejection, hydrophilic modification, mixed-matrix membranes, PEG, phase inversion, PVDF, PVP, TiO2, ultrafiltration
Subjects:Q Science > Q Science (General)
Divisions:Chemical and Energy Engineering
ID Code:105948
Deposited By: Yanti Mohd Shah
Deposited On:29 May 2024 06:28
Last Modified:29 May 2024 06:28

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