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Superior cross-linking assisted layer by layer modification of forward osmosis membranes for brackish water desalination

Wafa Suwaileh, Daniel Johnson Orcid Logo, Saeed Khodabakhshi, Nidal Hilal

Desalination, Volume: 463, Pages: 1 - 12

Swansea University Authors: Daniel Johnson Orcid Logo, Nidal Hilal

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DOI (Published version): 10.1016/j.desal.2019.04.009

Abstract

A novel surface modification strategy was developed to modify polyethersulfone membrane substrate to create membranes for forward osmosis applications. A novel poly(ethylenimine) crosslinked Hexadecafluorodecanedioic acid polyelectrolyte was synthesized, followed by layer by layer deposition on the...

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Published in: Desalination
ISSN: 0011-9164
Published: 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa49913
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first_indexed 2019-04-08T10:16:44Z
last_indexed 2019-05-01T11:40:06Z
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spelling 2019-05-01T09:04:20.7024905 v2 49913 2019-04-07 Superior cross-linking assisted layer by layer modification of forward osmosis membranes for brackish water desalination 4bdcc306062428d2715b0dd308cc092f 0000-0001-6921-0389 Daniel Johnson Daniel Johnson true false 3acba771241d878c8e35ff464aec0342 Nidal Hilal Nidal Hilal true false 2019-04-07 A novel surface modification strategy was developed to modify polyethersulfone membrane substrate to create membranes for forward osmosis applications. A novel poly(ethylenimine) crosslinked Hexadecafluorodecanedioic acid polyelectrolyte was synthesized, followed by layer by layer deposition on the surface of an ultrafiltration membrane substrate. While the unmodified membrane was negatively charged, this procedure reversed the surface charge, leading to a positively charged forward osmosis-nanofiltration membrane. Interestingly, at pH 7, the zeta potential approached 6.9 mV for membrane coated 4.5 as compared to the pristine membrane with a zeta potential value of approximately -11.0 mV. Extensive characterization and chemical analyses were carried out to ensure the effectiveness of the developed separation layer. The results revealed that the poly(ethylenimine) crosslinked Hexadecafluorodecanedioic acid was successfully deposited on the polyethersulfone membrane substrate. Preparation conditions, such as curing temperature and time were optimized. It was found out that membrane coated with 3.5 bilayers and cured at 60oC for one hour exhibited optimal water permeability of 21.9 LMH of and solute permeability of 1.66 L m−2 h−1 as compared to the neat membrane. Journal Article Desalination 463 1 12 0011-9164 Forward osmosis, brackish water desalination, polyether sulfone membrane, Layer by layer assembly, modelling. 1 8 2019 2019-08-01 10.1016/j.desal.2019.04.009 COLLEGE NANME COLLEGE CODE Swansea University 2019-05-01T09:04:20.7024905 2019-04-07T08:37:15.0452506 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Wafa Suwaileh 1 Daniel Johnson 0000-0001-6921-0389 2 Saeed Khodabakhshi 3 Nidal Hilal 4 0049913-08042019110140.pdf Acceptedv4v2.pdf 2019-04-08T11:01:40.1770000 Output 2237550 application/pdf Accepted Manuscript true 2020-04-12T00:00:00.0000000 true eng
title Superior cross-linking assisted layer by layer modification of forward osmosis membranes for brackish water desalination
spellingShingle Superior cross-linking assisted layer by layer modification of forward osmosis membranes for brackish water desalination
Daniel Johnson
Nidal Hilal
title_short Superior cross-linking assisted layer by layer modification of forward osmosis membranes for brackish water desalination
title_full Superior cross-linking assisted layer by layer modification of forward osmosis membranes for brackish water desalination
title_fullStr Superior cross-linking assisted layer by layer modification of forward osmosis membranes for brackish water desalination
title_full_unstemmed Superior cross-linking assisted layer by layer modification of forward osmosis membranes for brackish water desalination
title_sort Superior cross-linking assisted layer by layer modification of forward osmosis membranes for brackish water desalination
author_id_str_mv 4bdcc306062428d2715b0dd308cc092f
3acba771241d878c8e35ff464aec0342
author_id_fullname_str_mv 4bdcc306062428d2715b0dd308cc092f_***_Daniel Johnson
3acba771241d878c8e35ff464aec0342_***_Nidal Hilal
author Daniel Johnson
Nidal Hilal
author2 Wafa Suwaileh
Daniel Johnson
Saeed Khodabakhshi
Nidal Hilal
format Journal article
container_title Desalination
container_volume 463
container_start_page 1
publishDate 2019
institution Swansea University
issn 0011-9164
doi_str_mv 10.1016/j.desal.2019.04.009
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 A novel surface modification strategy was developed to modify polyethersulfone membrane substrate to create membranes for forward osmosis applications. A novel poly(ethylenimine) crosslinked Hexadecafluorodecanedioic acid polyelectrolyte was synthesized, followed by layer by layer deposition on the surface of an ultrafiltration membrane substrate. While the unmodified membrane was negatively charged, this procedure reversed the surface charge, leading to a positively charged forward osmosis-nanofiltration membrane. Interestingly, at pH 7, the zeta potential approached 6.9 mV for membrane coated 4.5 as compared to the pristine membrane with a zeta potential value of approximately -11.0 mV. Extensive characterization and chemical analyses were carried out to ensure the effectiveness of the developed separation layer. The results revealed that the poly(ethylenimine) crosslinked Hexadecafluorodecanedioic acid was successfully deposited on the polyethersulfone membrane substrate. Preparation conditions, such as curing temperature and time were optimized. It was found out that membrane coated with 3.5 bilayers and cured at 60oC for one hour exhibited optimal water permeability of 21.9 LMH of and solute permeability of 1.66 L m−2 h−1 as compared to the neat membrane.
published_date 2019-08-01T04:01:11Z
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score 11.036706

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