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Electrically conducting nanofiltration membranes based on networked cellulose and carbon nanostructures

Farah Ejaz Ahmed, Boor Singh Lalia, Nidal Hilal, Raed Hashaikeh

Desalination, Volume: 406, Pages: 60 - 66

Swansea University Author: Nidal Hilal

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DOI (Published version): 10.1016/j.desal.2016.09.005

Abstract

Electrically enhanced fouling control is increasingly applied to membrane-based separation and requires conducting membranes with controlled properties. In this work, electrically conductive membranes based on networked cellulose (NC) and carbon nanostructures (CNS) were fabricated via vacuum filtra...

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Published in: Desalination
ISSN: 0011-9164
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa30094
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first_indexed 2016-09-18T03:48:12Z
last_indexed 2018-02-09T05:15:47Z
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spelling 2017-01-23T11:33:48.9798246 v2 30094 2016-09-17 Electrically conducting nanofiltration membranes based on networked cellulose and carbon nanostructures 3acba771241d878c8e35ff464aec0342 Nidal Hilal Nidal Hilal true false 2016-09-17 FGSEN Electrically enhanced fouling control is increasingly applied to membrane-based separation and requires conducting membranes with controlled properties. In this work, electrically conductive membranes based on networked cellulose (NC) and carbon nanostructures (CNS) were fabricated via vacuum filtration, followed by drying at 40 °C. The morphology, structure, mechanical and electrochemical properties of these NC-CNS membranes were characterized and compared with CNS membranes. The effect of incorporating NC on the electrocatalytic activity has been analyzed. It is found that networked cellulose helps to decrease the contact angle of water from 105° to 73°. It is also found that the improved surface hydrophilicity of CNS-NC membrane assists the regeneration of electrode surface during electrolysis process. Networked cellulose yields a more dense structure with the tensile strength exceeding ten times that of CNS alone. The compaction of pore structure via incorporation of NC translates into promising results with respect to nanofiltration of divalent ions, with a rejection efficiency of 60% for MgSO4 and 47% for CaCl2, while maintaining a high flux ≥ 100 L m− 2 h− 1, making them suitable for pretreatment of RO feeds. Journal Article Desalination 406 60 66 0011-9164 16 3 2017 2017-03-16 10.1016/j.desal.2016.09.005 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2017-01-23T11:33:48.9798246 2016-09-17T21:05:09.5296748 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Farah Ejaz Ahmed 1 Boor Singh Lalia 2 Nidal Hilal 3 Raed Hashaikeh 4 0030094-19092016093324.pdf Final_Raed.pdf 2016-09-19T09:33:24.4000000 Output 1340800 application/pdf Accepted Manuscript true 2017-09-19T00:00:00.0000000 false
title Electrically conducting nanofiltration membranes based on networked cellulose and carbon nanostructures
spellingShingle Electrically conducting nanofiltration membranes based on networked cellulose and carbon nanostructures
Nidal Hilal
title_short Electrically conducting nanofiltration membranes based on networked cellulose and carbon nanostructures
title_full Electrically conducting nanofiltration membranes based on networked cellulose and carbon nanostructures
title_fullStr Electrically conducting nanofiltration membranes based on networked cellulose and carbon nanostructures
title_full_unstemmed Electrically conducting nanofiltration membranes based on networked cellulose and carbon nanostructures
title_sort Electrically conducting nanofiltration membranes based on networked cellulose and carbon nanostructures
author_id_str_mv 3acba771241d878c8e35ff464aec0342
author_id_fullname_str_mv 3acba771241d878c8e35ff464aec0342_***_Nidal Hilal
author Nidal Hilal
author2 Farah Ejaz Ahmed
Boor Singh Lalia
Nidal Hilal
Raed Hashaikeh
format Journal article
container_title Desalination
container_volume 406
container_start_page 60
publishDate 2017
institution Swansea University
issn 0011-9164
doi_str_mv 10.1016/j.desal.2016.09.005
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 Electrically enhanced fouling control is increasingly applied to membrane-based separation and requires conducting membranes with controlled properties. In this work, electrically conductive membranes based on networked cellulose (NC) and carbon nanostructures (CNS) were fabricated via vacuum filtration, followed by drying at 40 °C. The morphology, structure, mechanical and electrochemical properties of these NC-CNS membranes were characterized and compared with CNS membranes. The effect of incorporating NC on the electrocatalytic activity has been analyzed. It is found that networked cellulose helps to decrease the contact angle of water from 105° to 73°. It is also found that the improved surface hydrophilicity of CNS-NC membrane assists the regeneration of electrode surface during electrolysis process. Networked cellulose yields a more dense structure with the tensile strength exceeding ten times that of CNS alone. The compaction of pore structure via incorporation of NC translates into promising results with respect to nanofiltration of divalent ions, with a rejection efficiency of 60% for MgSO4 and 47% for CaCl2, while maintaining a high flux ≥ 100 L m− 2 h− 1, making them suitable for pretreatment of RO feeds.
published_date 2017-03-16T03:36:43Z
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score 11.036815

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