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Effect of different structure of membrane support on polyamide formation and its performance in reverse osmosis

This work aims to investigate the polyamide (PA) morphology on polysulfone (PSf) membrane supports with different morphologies. It was achieved by systematically varying the N-Methyl-2-Pyrrolidone (NMP) and Dimethylformamide (DMF) solvent composition ratios in dope solution as adapted in Tiraferri e...

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Main Authors: Sark, Jin Fei, Jullok, Nora, Lau, Woei Jye
Format: Conference or Workshop Item
Published: 2021
Subjects:
TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/94385/
http://dx.doi.org/10.1016/j.matpr.2021.03.555
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spelling my.utm.943852022-03-31T15:21:32Z http://eprints.utm.my/id/eprint/94385/ Effect of different structure of membrane support on polyamide formation and its performance in reverse osmosis Sark, Jin Fei Jullok, Nora Lau, Woei Jye TP Chemical technology This work aims to investigate the polyamide (PA) morphology on polysulfone (PSf) membrane supports with different morphologies. It was achieved by systematically varying the N-Methyl-2-Pyrrolidone (NMP) and Dimethylformamide (DMF) solvent composition ratios in dope solution as adapted in Tiraferri et al. The PSf membrane support was firstly synthesized via phase separation technique. Next, the PA layer of the thin film composite (TFC) membrane was synthesized via consistent interfacial polymerization parameters on the PSf membrane support. The PA layer over the resulting array of membrane supports was investigated on their surface wettability, top and cross-sectional morphologies, and performances. Result shows that with more NMP content in the dope solution produces thin and dense sponge-like top skin layer with intense extended finger-like macrovoids sublayer. Meanwhile, more DMF content in the dope solution produces thicker and dense sponge-like morphology on the top skin with finger-like pores underneath. A layer of smaller and loosen ridge-and-valley PA structures is formed on the thicker and dense sponge-like morphology. TFC membrane over support made of NMP to DMF (40:60) was observed had the highest hydrophilicity with the lowest contact angle measurement of 61.9 ± 3.1°. It also performed the highest water permeability of 4.06 LMH/bar, moderate salt rejection of 95.65% with salt permeability of 1.9 gMH. 2021 Conference or Workshop Item PeerReviewed Sark, Jin Fei and Jullok, Nora and Lau, Woei Jye (2021) Effect of different structure of membrane support on polyamide formation and its performance in reverse osmosis. In: 2020 Regional Congress on Membrane Technology, RCOM 2020 and Regional Conference Environmental Engineering, RCEnvE 2020, 26 - 27 August 2020, Kuala Lumpur, Malaysia. http://dx.doi.org/10.1016/j.matpr.2021.03.555
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TP Chemical technology
spellingShingle TP Chemical technology
Sark, Jin Fei
Jullok, Nora
Lau, Woei Jye
Effect of different structure of membrane support on polyamide formation and its performance in reverse osmosis
description This work aims to investigate the polyamide (PA) morphology on polysulfone (PSf) membrane supports with different morphologies. It was achieved by systematically varying the N-Methyl-2-Pyrrolidone (NMP) and Dimethylformamide (DMF) solvent composition ratios in dope solution as adapted in Tiraferri et al. The PSf membrane support was firstly synthesized via phase separation technique. Next, the PA layer of the thin film composite (TFC) membrane was synthesized via consistent interfacial polymerization parameters on the PSf membrane support. The PA layer over the resulting array of membrane supports was investigated on their surface wettability, top and cross-sectional morphologies, and performances. Result shows that with more NMP content in the dope solution produces thin and dense sponge-like top skin layer with intense extended finger-like macrovoids sublayer. Meanwhile, more DMF content in the dope solution produces thicker and dense sponge-like morphology on the top skin with finger-like pores underneath. A layer of smaller and loosen ridge-and-valley PA structures is formed on the thicker and dense sponge-like morphology. TFC membrane over support made of NMP to DMF (40:60) was observed had the highest hydrophilicity with the lowest contact angle measurement of 61.9 ± 3.1°. It also performed the highest water permeability of 4.06 LMH/bar, moderate salt rejection of 95.65% with salt permeability of 1.9 gMH.
format Conference or Workshop Item
author Sark, Jin Fei
Jullok, Nora
Lau, Woei Jye
author_facet Sark, Jin Fei
Jullok, Nora
Lau, Woei Jye
author_sort Sark, Jin Fei
title Effect of different structure of membrane support on polyamide formation and its performance in reverse osmosis
title_short Effect of different structure of membrane support on polyamide formation and its performance in reverse osmosis
title_full Effect of different structure of membrane support on polyamide formation and its performance in reverse osmosis
title_fullStr Effect of different structure of membrane support on polyamide formation and its performance in reverse osmosis
title_full_unstemmed Effect of different structure of membrane support on polyamide formation and its performance in reverse osmosis
title_sort effect of different structure of membrane support on polyamide formation and its performance in reverse osmosis
publishDate 2021
url http://eprints.utm.my/id/eprint/94385/
http://dx.doi.org/10.1016/j.matpr.2021.03.555
_version_ 1729703164763963392
score 13.211869

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