Enhancing the stability and performance of graphene oxide-poly(amido amine) polysulfone membranes with (3-aminopropyl)triethoxysilane crosslinker
<p dir="ltr">The separation of oil-in-water (O/W) emulsions is a critical focus in industrial water treatment, where<u> ultrafiltration membrane technology</u> is increasingly utilized due to its modularity, cost-effectiveness, and high rejection efficiency. However, bala...
محفوظ في:
| المؤلف الرئيسي: | |
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| مؤلفون آخرون: | , , , , |
| منشور في: |
2025
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| الموضوعات: | |
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إضافة وسم
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| _version_ | 1864513537583349760 |
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| author | Ahmed T. Yasir (17302753) |
| author2 | Nchwa Ndame (20838701) Nadeen Alshaibi (20838704) Mariam Dalloul (20838707) Alaa H. Hawari (14151681) Abdelbaki Benamor (2868371) |
| author2_role | author author author author author |
| author_facet | Ahmed T. Yasir (17302753) Nchwa Ndame (20838701) Nadeen Alshaibi (20838704) Mariam Dalloul (20838707) Alaa H. Hawari (14151681) Abdelbaki Benamor (2868371) |
| author_role | author |
| dc.creator.none.fl_str_mv | Ahmed T. Yasir (17302753) Nchwa Ndame (20838701) Nadeen Alshaibi (20838704) Mariam Dalloul (20838707) Alaa H. Hawari (14151681) Abdelbaki Benamor (2868371) |
| dc.date.none.fl_str_mv | 2025-03-06T09:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1016/j.jece.2025.115989 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Enhancing_the_stability_and_performance_of_graphene_oxide-poly_amido_amine_polysulfone_membranes_with_3-aminopropyl_triethoxysilane_crosslinker/30306379 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Materials engineering Nanotechnology Membrane Graphene oxide PAMAMAPTES Oil emulsion Separation Fouling |
| dc.title.none.fl_str_mv | Enhancing the stability and performance of graphene oxide-poly(amido amine) polysulfone membranes with (3-aminopropyl)triethoxysilane crosslinker |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">The separation of oil-in-water (O/W) emulsions is a critical focus in industrial water treatment, where<u> ultrafiltration membrane technology</u> is increasingly utilized due to its modularity, cost-effectiveness, and high rejection efficiency. However, balancing membrane permeability, selectivity, and fouling resistance remains a significant challenge, as it directly impacts the <u>membrane's separation</u> performance and longevity. In this study, we present a novel polysulfone-based ultrafiltration membrane incorporating a graphene oxide-poly(amido amine) (GO-PAMAM) nanocomposite, designed to improve water flux and anti-fouling properties. To mitigate concerns of GO-PAMAM leaching, GO was functionalized with (3-aminopropyl) triethoxysilane (APTES), resulting in the generation-zero (Gen 0) GO-APTES-PAMAM nanocomposite. Higher generations (Gen 2, Gen 3, and Gen 4) with increased PAMAM functionalization were synthesized via Michael addition and amidation reactions, as confirmed by X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy. The fabricated membranes were characterized by pore size analysis, water contact angle measurements, scanning electron microscopy (SEM), and atomic force microscopy (AFM). Filtration performance was evaluated using a dead-end filtration setup, revealing that water permeation flux increased with higher PAMAM generations. Notably, the Gen 4 GO-APTES-PAMAM membrane exhibited a 327 % flux enhancement and a 17.3 % improvement in flux recovery rate compared to pristine <u>polysulfone</u> (Psf) membranes along with 97.1 % oil rejection efficiency. Leaching tests demonstrated that APTES functionalization significantly reduced nanocomposite leaching. Fouling analysis using Hermia’s model identified cake formation as the dominant fouling mechanism for all membranes. Surface energy analysis, based on the Owens-Wendt-Kaelble (OWK) model, indicated that the nanocomposite incorporation increased polar surface energy, thereby maintaining high oil rejection even at elevated flux levels.</p><h2>Other Information</h2><p dir="ltr">Published in: Journal of Environmental Chemical Engineering<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.jece.2025.115989" target="_blank">https://dx.doi.org/10.1016/j.jece.2025.115989</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_4d7b7d35750fcdae926ef8026ef8871e |
| identifier_str_mv | 10.1016/j.jece.2025.115989 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/30306379 |
| publishDate | 2025 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Enhancing the stability and performance of graphene oxide-poly(amido amine) polysulfone membranes with (3-aminopropyl)triethoxysilane crosslinkerAhmed T. Yasir (17302753)Nchwa Ndame (20838701)Nadeen Alshaibi (20838704)Mariam Dalloul (20838707)Alaa H. Hawari (14151681)Abdelbaki Benamor (2868371)EngineeringMaterials engineeringNanotechnologyMembraneGraphene oxidePAMAMAPTESOil emulsionSeparationFouling<p dir="ltr">The separation of oil-in-water (O/W) emulsions is a critical focus in industrial water treatment, where<u> ultrafiltration membrane technology</u> is increasingly utilized due to its modularity, cost-effectiveness, and high rejection efficiency. However, balancing membrane permeability, selectivity, and fouling resistance remains a significant challenge, as it directly impacts the <u>membrane's separation</u> performance and longevity. In this study, we present a novel polysulfone-based ultrafiltration membrane incorporating a graphene oxide-poly(amido amine) (GO-PAMAM) nanocomposite, designed to improve water flux and anti-fouling properties. To mitigate concerns of GO-PAMAM leaching, GO was functionalized with (3-aminopropyl) triethoxysilane (APTES), resulting in the generation-zero (Gen 0) GO-APTES-PAMAM nanocomposite. Higher generations (Gen 2, Gen 3, and Gen 4) with increased PAMAM functionalization were synthesized via Michael addition and amidation reactions, as confirmed by X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy. The fabricated membranes were characterized by pore size analysis, water contact angle measurements, scanning electron microscopy (SEM), and atomic force microscopy (AFM). Filtration performance was evaluated using a dead-end filtration setup, revealing that water permeation flux increased with higher PAMAM generations. Notably, the Gen 4 GO-APTES-PAMAM membrane exhibited a 327 % flux enhancement and a 17.3 % improvement in flux recovery rate compared to pristine <u>polysulfone</u> (Psf) membranes along with 97.1 % oil rejection efficiency. Leaching tests demonstrated that APTES functionalization significantly reduced nanocomposite leaching. Fouling analysis using Hermia’s model identified cake formation as the dominant fouling mechanism for all membranes. Surface energy analysis, based on the Owens-Wendt-Kaelble (OWK) model, indicated that the nanocomposite incorporation increased polar surface energy, thereby maintaining high oil rejection even at elevated flux levels.</p><h2>Other Information</h2><p dir="ltr">Published in: Journal of Environmental Chemical Engineering<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.jece.2025.115989" target="_blank">https://dx.doi.org/10.1016/j.jece.2025.115989</a></p>2025-03-06T09:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1016/j.jece.2025.115989https://figshare.com/articles/journal_contribution/Enhancing_the_stability_and_performance_of_graphene_oxide-poly_amido_amine_polysulfone_membranes_with_3-aminopropyl_triethoxysilane_crosslinker/30306379CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/303063792025-03-06T09:00:00Z |
| spellingShingle | Enhancing the stability and performance of graphene oxide-poly(amido amine) polysulfone membranes with (3-aminopropyl)triethoxysilane crosslinker Ahmed T. Yasir (17302753) Engineering Materials engineering Nanotechnology Membrane Graphene oxide PAMAMAPTES Oil emulsion Separation Fouling |
| status_str | publishedVersion |
| title | Enhancing the stability and performance of graphene oxide-poly(amido amine) polysulfone membranes with (3-aminopropyl)triethoxysilane crosslinker |
| title_full | Enhancing the stability and performance of graphene oxide-poly(amido amine) polysulfone membranes with (3-aminopropyl)triethoxysilane crosslinker |
| title_fullStr | Enhancing the stability and performance of graphene oxide-poly(amido amine) polysulfone membranes with (3-aminopropyl)triethoxysilane crosslinker |
| title_full_unstemmed | Enhancing the stability and performance of graphene oxide-poly(amido amine) polysulfone membranes with (3-aminopropyl)triethoxysilane crosslinker |
| title_short | Enhancing the stability and performance of graphene oxide-poly(amido amine) polysulfone membranes with (3-aminopropyl)triethoxysilane crosslinker |
| title_sort | Enhancing the stability and performance of graphene oxide-poly(amido amine) polysulfone membranes with (3-aminopropyl)triethoxysilane crosslinker |
| topic | Engineering Materials engineering Nanotechnology Membrane Graphene oxide PAMAMAPTES Oil emulsion Separation Fouling |