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Engineering the Surface and Mechanical Properties of Water Desalination Membranes Using Ultralong Carbon Nanotubes

Yehia M. Manawi, Kui Wang, Viktor Kochkodan, Daniel Johnson Orcid Logo, Muataz A. Atieh, Marwan K. Khraisheh

Membranes, Volume: 8, Issue: 4, Start page: 106

Swansea University Author: Daniel Johnson Orcid Logo

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DOI (Published version): 10.3390/membranes8040106

Abstract

In this work, novel polysulphone (PS) porous membranes for water desalination, incorporated with commercial and produced carbon nanotubes (CNT), were fabricated and analyzed. It was demonstrated that changing the main characteristics of CNT (e.g., loading in the dope solutions, aspect ratio, and fun...

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Published in: Membranes
ISSN: 2077-0375
Published: 2018
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URI: https://cronfa.swan.ac.uk/Record/cronfa46232
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first_indexed 2018-12-06T05:27:46Z
last_indexed 2019-01-22T20:00:21Z
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spelling 2019-01-22T16:58:40.4339197 v2 46232 2018-12-05 Engineering the Surface and Mechanical Properties of Water Desalination Membranes Using Ultralong Carbon Nanotubes 4bdcc306062428d2715b0dd308cc092f 0000-0001-6921-0389 Daniel Johnson Daniel Johnson true false 2018-12-05 In this work, novel polysulphone (PS) porous membranes for water desalination, incorporated with commercial and produced carbon nanotubes (CNT), were fabricated and analyzed. It was demonstrated that changing the main characteristics of CNT (e.g., loading in the dope solutions, aspect ratio, and functionality) significantly affected the membrane properties and performance including porosity, water flux, and mechanical and surface properties. The water flux of the fabricated membranes increased considerably (up to 20 times) along with the increase in CNT loading. Conversely, yield stress and Young’s modulus of the membranes dropped with the increase in the CNT loading mainly due to porosity increase. It was shown that the elongation at fracture for PS/0.25 wt. % CNT membrane was much higher than for pristine PS membrane due to enhanced compatibility of commercial CNTs with PS matrix. More pronounced effect on membrane’s mechanical properties was observed due to compatibility of CNTs with PS matrix when compared to other factors (i.e., changes in the CNT aspect ratio). The water contact angle for PS membranes incorporated with commercial CNT sharply decreased from 73° to 53° (membrane hydrophilization) for membranes with 0.1 and 1.0 wt. % of CNTs, while for the same loading of produced CNTs the water contact angles for the membrane samples increased from 66° to 72°. The obtained results show that complex interplay of various factors such as: loading of CNT in the dope solutions, aspect ratio, and functionality of CNT. These features can be used to engineer membranes with desired properties and performance. Journal Article Membranes 8 4 106 2077-0375 membranes; atomic force microscopy; mechanical properties; water desalination 31 12 2018 2018-12-31 10.3390/membranes8040106 COLLEGE NANME COLLEGE CODE Swansea University 2019-01-22T16:58:40.4339197 2018-12-05T09:45:02.0835894 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Yehia M. Manawi 1 Kui Wang 2 Viktor Kochkodan 3 Daniel Johnson 0000-0001-6921-0389 4 Muataz A. Atieh 5 Marwan K. Khraisheh 6 0046232-05122018095019.pdf manawi2018v2.pdf 2018-12-05T09:50:19.7930000 Output 7182799 application/pdf Version of Record true 2018-12-05T00:00:00.0000000 true eng
title Engineering the Surface and Mechanical Properties of Water Desalination Membranes Using Ultralong Carbon Nanotubes
spellingShingle Engineering the Surface and Mechanical Properties of Water Desalination Membranes Using Ultralong Carbon Nanotubes
Daniel Johnson
title_short Engineering the Surface and Mechanical Properties of Water Desalination Membranes Using Ultralong Carbon Nanotubes
title_full Engineering the Surface and Mechanical Properties of Water Desalination Membranes Using Ultralong Carbon Nanotubes
title_fullStr Engineering the Surface and Mechanical Properties of Water Desalination Membranes Using Ultralong Carbon Nanotubes
title_full_unstemmed Engineering the Surface and Mechanical Properties of Water Desalination Membranes Using Ultralong Carbon Nanotubes
title_sort Engineering the Surface and Mechanical Properties of Water Desalination Membranes Using Ultralong Carbon Nanotubes
author_id_str_mv 4bdcc306062428d2715b0dd308cc092f
author_id_fullname_str_mv 4bdcc306062428d2715b0dd308cc092f_***_Daniel Johnson
author Daniel Johnson
author2 Yehia M. Manawi
Kui Wang
Viktor Kochkodan
Daniel Johnson
Muataz A. Atieh
Marwan K. Khraisheh
format Journal article
container_title Membranes
container_volume 8
container_issue 4
container_start_page 106
publishDate 2018
institution Swansea University
issn 2077-0375
doi_str_mv 10.3390/membranes8040106
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 In this work, novel polysulphone (PS) porous membranes for water desalination, incorporated with commercial and produced carbon nanotubes (CNT), were fabricated and analyzed. It was demonstrated that changing the main characteristics of CNT (e.g., loading in the dope solutions, aspect ratio, and functionality) significantly affected the membrane properties and performance including porosity, water flux, and mechanical and surface properties. The water flux of the fabricated membranes increased considerably (up to 20 times) along with the increase in CNT loading. Conversely, yield stress and Young’s modulus of the membranes dropped with the increase in the CNT loading mainly due to porosity increase. It was shown that the elongation at fracture for PS/0.25 wt. % CNT membrane was much higher than for pristine PS membrane due to enhanced compatibility of commercial CNTs with PS matrix. More pronounced effect on membrane’s mechanical properties was observed due to compatibility of CNTs with PS matrix when compared to other factors (i.e., changes in the CNT aspect ratio). The water contact angle for PS membranes incorporated with commercial CNT sharply decreased from 73° to 53° (membrane hydrophilization) for membranes with 0.1 and 1.0 wt. % of CNTs, while for the same loading of produced CNTs the water contact angles for the membrane samples increased from 66° to 72°. The obtained results show that complex interplay of various factors such as: loading of CNT in the dope solutions, aspect ratio, and functionality of CNT. These features can be used to engineer membranes with desired properties and performance.
published_date 2018-12-31T03:57:59Z
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score 11.012678

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