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Development of forward osmosis membranes modified by cross-linked layer by layer assembly for brackish water desalination

Wafa Suwaileh, Daniel Johnson, Saeed Khodabakhshi, Nidal Hilal

Journal of Membrane Science, Volume: 583, Pages: 267 - 277

Swansea University Author: Nidal Hilal

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DOI (Published version): 10.1016/j.memsci.2019.04.052

Abstract

Forward osmosis membranes having high water flux and minimum reverse solute flux are the ideal membranes for forward osmosis process. In this work, we report the use of a LbL surface modification strategy to fabricate a novel positively charged FO membranes. The main purpose of this work was to synt...

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Published in: Journal of Membrane Science
ISSN: 0376-7388
Published: Amsterdam Elsevier 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa50055
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spelling 2019-07-17T15:07:50.6220762 v2 50055 2019-04-21 Development of forward osmosis membranes modified by cross-linked layer by layer assembly for brackish water desalination 3acba771241d878c8e35ff464aec0342 Nidal Hilal Nidal Hilal true false 2019-04-21 FGSEN Forward osmosis membranes having high water flux and minimum reverse solute flux are the ideal membranes for forward osmosis process. In this work, we report the use of a LbL surface modification strategy to fabricate a novel positively charged FO membranes. The main purpose of this work was to synthesize an effective selective layer onto a commercial PES ultrafiltration membrane, which functioned as a support layer, to provide the best performance for treatment of brackish water. The new membranes containing a mixing ratio of 0.1 MPDADMAC: 0.001 MCMCNa in the polyelectrolyte complex exhibited the best performance in terms of minimum reverse solute flux and acceptable water flux as compared to that for membranes containing a mixing ratio of 0.1 MPDADMAC: 0.01 MCMCNa. This improved performance and physicochemical properties of the new membranes were explored by various analytical techniques and were compared to the pristine membrane. Firstly, Structural characterization revealed that the new selective layer was homogenous, uniform and strongly adhered to the substrate resulting in excellent water permeability and acceptable reverse solute flux. Secondly, it was found that the optimal curing temperature was 60 OC for 4 hours that contributed to enhanced membrane performance. Lastly, the developed ranking protocol was adopted to optimize the membrane performance in terms of the water permeability coefficient (A) and solute permeability coefficient (B). According to this optimization procedure, the best performing membrane was membrane coated 2.5 bilayers which had water permeability and solute permeability coefficients of 23.1 L m−2 h−1 bar-1 and 1.54 L m−2 h−1 respectively. Journal Article Journal of Membrane Science 583 267 277 Elsevier Amsterdam 0376-7388 Forward osmosis, surface modification, layer by layer assembly, polyelectrolyte complex, optimization, Modeling 1 8 2019 2019-08-01 10.1016/j.memsci.2019.04.052 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2019-07-17T15:07:50.6220762 2019-04-21T14:25:30.0946129 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Wafa Suwaileh 1 Daniel Johnson 2 Saeed Khodabakhshi 3 Nidal Hilal 4 0050055-05062019150143.pdf suwaileh2019(4).pdf 2019-06-05T15:01:43.6030000 Output 1722664 application/pdf Accepted Manuscript true 2020-04-25T00:00:00.0000000 true eng
title Development of forward osmosis membranes modified by cross-linked layer by layer assembly for brackish water desalination
spellingShingle Development of forward osmosis membranes modified by cross-linked layer by layer assembly for brackish water desalination
Nidal Hilal
title_short Development of forward osmosis membranes modified by cross-linked layer by layer assembly for brackish water desalination
title_full Development of forward osmosis membranes modified by cross-linked layer by layer assembly for brackish water desalination
title_fullStr Development of forward osmosis membranes modified by cross-linked layer by layer assembly for brackish water desalination
title_full_unstemmed Development of forward osmosis membranes modified by cross-linked layer by layer assembly for brackish water desalination
title_sort Development of forward osmosis membranes modified by cross-linked layer by layer assembly for brackish water desalination
author_id_str_mv 3acba771241d878c8e35ff464aec0342
author_id_fullname_str_mv 3acba771241d878c8e35ff464aec0342_***_Nidal Hilal
author Nidal Hilal
author2 Wafa Suwaileh
Daniel Johnson
Saeed Khodabakhshi
Nidal Hilal
format Journal article
container_title Journal of Membrane Science
container_volume 583
container_start_page 267
publishDate 2019
institution Swansea University
issn 0376-7388
doi_str_mv 10.1016/j.memsci.2019.04.052
publisher Elsevier
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 1
active_str 0
description Forward osmosis membranes having high water flux and minimum reverse solute flux are the ideal membranes for forward osmosis process. In this work, we report the use of a LbL surface modification strategy to fabricate a novel positively charged FO membranes. The main purpose of this work was to synthesize an effective selective layer onto a commercial PES ultrafiltration membrane, which functioned as a support layer, to provide the best performance for treatment of brackish water. The new membranes containing a mixing ratio of 0.1 MPDADMAC: 0.001 MCMCNa in the polyelectrolyte complex exhibited the best performance in terms of minimum reverse solute flux and acceptable water flux as compared to that for membranes containing a mixing ratio of 0.1 MPDADMAC: 0.01 MCMCNa. This improved performance and physicochemical properties of the new membranes were explored by various analytical techniques and were compared to the pristine membrane. Firstly, Structural characterization revealed that the new selective layer was homogenous, uniform and strongly adhered to the substrate resulting in excellent water permeability and acceptable reverse solute flux. Secondly, it was found that the optimal curing temperature was 60 OC for 4 hours that contributed to enhanced membrane performance. Lastly, the developed ranking protocol was adopted to optimize the membrane performance in terms of the water permeability coefficient (A) and solute permeability coefficient (B). According to this optimization procedure, the best performing membrane was membrane coated 2.5 bilayers which had water permeability and solute permeability coefficients of 23.1 L m−2 h−1 bar-1 and 1.54 L m−2 h−1 respectively.
published_date 2019-08-01T04:01:21Z
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score 11.036706

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