Antifouling and desalination enhancement of forward osmosis-based thin film composite membranes via functionalized Multiwalled carbon nanotubes mixed matrix Polyethersulfone substrate
The growing scarcity of freshwater worldwide has increased interest in forward osmosis (FO) membranes as a promising solution for water desalination and wastewater treatment. This study investigates the enhancement of thin-film composite (TFC) FO membranes via the incorporation of carboxyl-functiona...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI
2025
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| Online Access: | https://umpir.ump.edu.my/id/eprint/45750/ |
| _version_ | 1848827501402390528 |
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| author | E. Almansouri, Hamza Edokali, Mohamed Mazrul Nizam, Abu Seman Ntone, Ellora Priscille Ndia Che Ku Mohammad Faizal, Che Ku Yahya Mohammad, Abdul Wahab |
| author_facet | E. Almansouri, Hamza Edokali, Mohamed Mazrul Nizam, Abu Seman Ntone, Ellora Priscille Ndia Che Ku Mohammad Faizal, Che Ku Yahya Mohammad, Abdul Wahab |
| author_sort | E. Almansouri, Hamza |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | The growing scarcity of freshwater worldwide has increased interest in forward osmosis (FO) membranes as a promising solution for water desalination and wastewater treatment. This study investigates the enhancement of thin-film composite (TFC) FO membranes via the incorporation of carboxyl-functionalized multiwalled carbon nanotubes (COOH-MWCNTs) into the polyethersulfone (PES) support layer. The membranes were fabricated using a combination of phase inversion and interfacial polymerization techniques, with COOH-MWCNTs incorporated into the membrane support layers at different concentrations (0–0.75 wt.%). Comprehensive characterization was carried out using various analytical methods and mechanical testing to evaluate the physicochemical and structural properties of the membranes. The modified membranes demonstrated improved hydrophilicity, enhanced mechanical and thermal stability, and improved surface charge properties. Performance tests using a 1 M NaCl draw solution showed that the optimized membrane (0.5 wt.% COOH-MWCNTs) attained a 161% enhancement in water flux (7.48 LMH) compared to the unmodified membrane (2.86 LMH), while also reducing internal concentration polarization (ICP). The antifouling properties were also significantly improved, with a flux recovery rate of 91.92%, attributed to enhanced electrostatic repulsion as well as surface and microstructural modifications. Despite a moderate rise in reverse solute flux, the specific reverse solute flux (Js/Jw) remained within acceptable limits. These findings highlight the potential of COOH-MWCNT-modified membranes in enhancing FO desalination performance, offering a promising option for next-generation water purification technologies. |
| first_indexed | 2025-11-15T04:01:43Z |
| format | Article |
| id | ump-45750 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T04:01:43Z |
| publishDate | 2025 |
| publisher | MDPI |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-457502025-09-29T06:13:56Z https://umpir.ump.edu.my/id/eprint/45750/ Antifouling and desalination enhancement of forward osmosis-based thin film composite membranes via functionalized Multiwalled carbon nanotubes mixed matrix Polyethersulfone substrate E. Almansouri, Hamza Edokali, Mohamed Mazrul Nizam, Abu Seman Ntone, Ellora Priscille Ndia Che Ku Mohammad Faizal, Che Ku Yahya Mohammad, Abdul Wahab TP Chemical technology The growing scarcity of freshwater worldwide has increased interest in forward osmosis (FO) membranes as a promising solution for water desalination and wastewater treatment. This study investigates the enhancement of thin-film composite (TFC) FO membranes via the incorporation of carboxyl-functionalized multiwalled carbon nanotubes (COOH-MWCNTs) into the polyethersulfone (PES) support layer. The membranes were fabricated using a combination of phase inversion and interfacial polymerization techniques, with COOH-MWCNTs incorporated into the membrane support layers at different concentrations (0–0.75 wt.%). Comprehensive characterization was carried out using various analytical methods and mechanical testing to evaluate the physicochemical and structural properties of the membranes. The modified membranes demonstrated improved hydrophilicity, enhanced mechanical and thermal stability, and improved surface charge properties. Performance tests using a 1 M NaCl draw solution showed that the optimized membrane (0.5 wt.% COOH-MWCNTs) attained a 161% enhancement in water flux (7.48 LMH) compared to the unmodified membrane (2.86 LMH), while also reducing internal concentration polarization (ICP). The antifouling properties were also significantly improved, with a flux recovery rate of 91.92%, attributed to enhanced electrostatic repulsion as well as surface and microstructural modifications. Despite a moderate rise in reverse solute flux, the specific reverse solute flux (Js/Jw) remained within acceptable limits. These findings highlight the potential of COOH-MWCNT-modified membranes in enhancing FO desalination performance, offering a promising option for next-generation water purification technologies. MDPI 2025-08 Article PeerReviewed pdf en cc_by_4 https://umpir.ump.edu.my/id/eprint/45750/1/membranes15%20%282025%29%20p240%20%28Hamza%29.pdf E. Almansouri, Hamza and Edokali, Mohamed and Mazrul Nizam, Abu Seman and Ntone, Ellora Priscille Ndia and Che Ku Mohammad Faizal, Che Ku Yahya and Mohammad, Abdul Wahab (2025) Antifouling and desalination enhancement of forward osmosis-based thin film composite membranes via functionalized Multiwalled carbon nanotubes mixed matrix Polyethersulfone substrate. Membranes, 15 (240). pp. 1-33. ISSN 2077-0375. (Published) https://doi.org/10.3390/membranes15080240 10.3390/membranes15080240 10.3390/membranes15080240 |
| spellingShingle | TP Chemical technology E. Almansouri, Hamza Edokali, Mohamed Mazrul Nizam, Abu Seman Ntone, Ellora Priscille Ndia Che Ku Mohammad Faizal, Che Ku Yahya Mohammad, Abdul Wahab Antifouling and desalination enhancement of forward osmosis-based thin film composite membranes via functionalized Multiwalled carbon nanotubes mixed matrix Polyethersulfone substrate |
| title | Antifouling and desalination enhancement of forward osmosis-based thin film composite membranes via functionalized Multiwalled carbon nanotubes mixed matrix Polyethersulfone substrate |
| title_full | Antifouling and desalination enhancement of forward osmosis-based thin film composite membranes via functionalized Multiwalled carbon nanotubes mixed matrix Polyethersulfone substrate |
| title_fullStr | Antifouling and desalination enhancement of forward osmosis-based thin film composite membranes via functionalized Multiwalled carbon nanotubes mixed matrix Polyethersulfone substrate |
| title_full_unstemmed | Antifouling and desalination enhancement of forward osmosis-based thin film composite membranes via functionalized Multiwalled carbon nanotubes mixed matrix Polyethersulfone substrate |
| title_short | Antifouling and desalination enhancement of forward osmosis-based thin film composite membranes via functionalized Multiwalled carbon nanotubes mixed matrix Polyethersulfone substrate |
| title_sort | antifouling and desalination enhancement of forward osmosis-based thin film composite membranes via functionalized multiwalled carbon nanotubes mixed matrix polyethersulfone substrate |
| topic | TP Chemical technology |
| url | https://umpir.ump.edu.my/id/eprint/45750/ https://umpir.ump.edu.my/id/eprint/45750/ https://umpir.ump.edu.my/id/eprint/45750/ |