Influence of Polyethersulfone substrate properties on the performance of thin film composite forward osmosis membrane: Effect of additive concentration, polymer concentration and casting thickness

Nur Aisyah, Shafie and Mazrul Nizam, Abu Seman and Syed Mohd Saufi, Tuan Chik and Abdul Wahab, Mohammad (2023) Influence of Polyethersulfone substrate properties on the performance of thin film composite forward osmosis membrane: Effect of additive concentration, polymer concentration and casting thickness. Chemical Engineering Research and Design, 200. pp. 186-201. ISSN 0263-8762. (Published)

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DOI/Official URL: https://doi.org/10.1016/j.cherd.2023.10.034

Abstract

This research seeks to optimize the impact of substrate parameters such as polyvinylpyrrolidone (PVP) additive concentration (3–11 wt%), polyethersulfone (PES) concentration (11–17 wt%), and casting thickness (100–250 μm) on the overall performances of (PES) thin film composite (TFC) FO membrane. Non-solvent induced phase separation (NIPS) method was used to fabricate the substrate membrane, which was then followed by the interfacial polymerization of m-phenylene diamine (MPD) in aqueous solution and trimesoyl chloride (TMC) in hexane-organic solvent to form the active polyamide (PA) layer. Analyses of contact angle, porosity, pore size, functional group, morphology, and surface roughness were performed on membrane substrates and TFC membrane. Membrane performance parameters such as water flux (Jw), reverse salt diffusion (RSD), and specific reverse flux (SRF) were evaluated for the fabricated TFC membranes using the FO filtration system (pure water as feed solution and NaCl as draw solution). In addition, the water permeability coefficient (A), the solute permeability coefficient (B), and the structural parameter (S) were computed mathematically. Optimized membranes were chosen using the specific reverse flux (SRF) as the principal performance indicator. The optimal membranes for each parameter were then evaluated for their antifouling and rejection properties using humic acid (HA) solution. Among the optimized membranes, 15%PES/5%PVP/100 μm membrane exhibited the best performance with high rejection and antifouling properties towards HA.

Item Type:	Article
Additional Information:	Indexed by Scopus
Uncontrolled Keywords:	Forward osmosis; HA fouling; Polyethersulfone; Polyvinylpyrrolidone; Reverse salt diffusion; Specific reverse flux
Subjects:	T Technology > T Technology (General) T Technology > TP Chemical technology
Faculty/Division:	Institute of Postgraduate Studies Centre of Excellence: Earth Resources & Sustainability Centre (ERAS) Faculty of Chemical and Process Engineering Technology
Depositing User:	Miss Amelia Binti Hasan
Date Deposited:	09 Nov 2023 01:42
Last Modified:	09 Nov 2023 01:42
URI:	http://umpir.ump.edu.my/id/eprint/39248
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