Mixed matrix membranes containing aspartic acid functionalized graphene oxide for enhanced oil-water emulsion separation
<p dir="ltr">Polysulfone (PS) mixed matrix membranes (MMMs) containing aspartic acid (AA) functionalized graphene oxide (fGO) with improved flux, oil rejection, and resistance to fouling were fabricated via phase inversion. The membranes hydrophilicity, morphology, porosity, and mech...
Saved in:
| Main Author: | |
|---|---|
| Other Authors: | , |
| Published: |
2020
|
| Subjects: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1864513557914189824 |
|---|---|
| author | Omnya Abdalla (17100211) |
| author2 | Md A. Wahab (17100214) Ahmed Abdala (5743205) |
| author2_role | author author |
| author_facet | Omnya Abdalla (17100211) Md A. Wahab (17100214) Ahmed Abdala (5743205) |
| author_role | author |
| dc.creator.none.fl_str_mv | Omnya Abdalla (17100211) Md A. Wahab (17100214) Ahmed Abdala (5743205) |
| dc.date.none.fl_str_mv | 2020-10-01T00:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1016/j.jece.2020.104269 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Mixed_matrix_membranes_containing_aspartic_acid_functionalized_graphene_oxide_for_enhanced_oil-water_emulsion_separation/24270397 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Chemical engineering Environmental sciences Pollution and contamination Mixed matrix membrane Graphene Functionalized graphene oxide Aspartic acid Polysulfone Oil-water separation Fouling Porosity |
| dc.title.none.fl_str_mv | Mixed matrix membranes containing aspartic acid functionalized graphene oxide for enhanced oil-water emulsion separation |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">Polysulfone (PS) mixed matrix membranes (MMMs) containing aspartic acid (AA) functionalized graphene oxide (fGO) with improved flux, oil rejection, and resistance to fouling were fabricated via phase inversion. The membranes hydrophilicity, morphology, porosity, and mechanical properties were analyzed and the impact of fGO loading on them was investigated using contact angle measurements, SEM, AFM, and dynamic mechanical analysis. The results revealed an increase in the membrane’s hydrophilicity, water permeability and oil rejection at very low fGO loadings, i.e., 0.05 – 0.2 wt.%, but no further enhancement was obtained at higher loadings, i.e., 0.4−0.8 wt.%. Water permeability increased by 97 % at 0.2 wt.% fGO membrane compared to pristine membrane and oil rejection reached 97.9 % upon filtration of 200 mL oil emulsion. Moreover, the MMM containing 0.2 wt.% fGO exhibited enhanced fouling resistances as demonstrated by slow flux decline and 90 % flux recovery after two cycles of fouling with bovine serum albumin (BSA).The results indicated that the carboxylic and amino groups introduced by AA functionalization were responsible for the enhanced hydrophilicity and fouling resistance. PS/fGO MMMs provided significant enhancement in performance, mechanical properties and fouling resistance at very low fGO concentration that does not affect the rheology of PS-fGO formulation and therefore requires no alteration to the commercial phase inversion process.</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.2020.104269" target="_blank">https://dx.doi.org/10.1016/j.jece.2020.104269</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_a05b377d89a96c2c639debff5f03577b |
| identifier_str_mv | 10.1016/j.jece.2020.104269 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/24270397 |
| publishDate | 2020 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Mixed matrix membranes containing aspartic acid functionalized graphene oxide for enhanced oil-water emulsion separationOmnya Abdalla (17100211)Md A. Wahab (17100214)Ahmed Abdala (5743205)EngineeringChemical engineeringEnvironmental sciencesPollution and contaminationMixed matrix membraneGrapheneFunctionalized graphene oxideAspartic acidPolysulfoneOil-water separationFoulingPorosity<p dir="ltr">Polysulfone (PS) mixed matrix membranes (MMMs) containing aspartic acid (AA) functionalized graphene oxide (fGO) with improved flux, oil rejection, and resistance to fouling were fabricated via phase inversion. The membranes hydrophilicity, morphology, porosity, and mechanical properties were analyzed and the impact of fGO loading on them was investigated using contact angle measurements, SEM, AFM, and dynamic mechanical analysis. The results revealed an increase in the membrane’s hydrophilicity, water permeability and oil rejection at very low fGO loadings, i.e., 0.05 – 0.2 wt.%, but no further enhancement was obtained at higher loadings, i.e., 0.4−0.8 wt.%. Water permeability increased by 97 % at 0.2 wt.% fGO membrane compared to pristine membrane and oil rejection reached 97.9 % upon filtration of 200 mL oil emulsion. Moreover, the MMM containing 0.2 wt.% fGO exhibited enhanced fouling resistances as demonstrated by slow flux decline and 90 % flux recovery after two cycles of fouling with bovine serum albumin (BSA).The results indicated that the carboxylic and amino groups introduced by AA functionalization were responsible for the enhanced hydrophilicity and fouling resistance. PS/fGO MMMs provided significant enhancement in performance, mechanical properties and fouling resistance at very low fGO concentration that does not affect the rheology of PS-fGO formulation and therefore requires no alteration to the commercial phase inversion process.</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.2020.104269" target="_blank">https://dx.doi.org/10.1016/j.jece.2020.104269</a></p>2020-10-01T00:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1016/j.jece.2020.104269https://figshare.com/articles/journal_contribution/Mixed_matrix_membranes_containing_aspartic_acid_functionalized_graphene_oxide_for_enhanced_oil-water_emulsion_separation/24270397CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/242703972020-10-01T00:00:00Z |
| spellingShingle | Mixed matrix membranes containing aspartic acid functionalized graphene oxide for enhanced oil-water emulsion separation Omnya Abdalla (17100211) Engineering Chemical engineering Environmental sciences Pollution and contamination Mixed matrix membrane Graphene Functionalized graphene oxide Aspartic acid Polysulfone Oil-water separation Fouling Porosity |
| status_str | publishedVersion |
| title | Mixed matrix membranes containing aspartic acid functionalized graphene oxide for enhanced oil-water emulsion separation |
| title_full | Mixed matrix membranes containing aspartic acid functionalized graphene oxide for enhanced oil-water emulsion separation |
| title_fullStr | Mixed matrix membranes containing aspartic acid functionalized graphene oxide for enhanced oil-water emulsion separation |
| title_full_unstemmed | Mixed matrix membranes containing aspartic acid functionalized graphene oxide for enhanced oil-water emulsion separation |
| title_short | Mixed matrix membranes containing aspartic acid functionalized graphene oxide for enhanced oil-water emulsion separation |
| title_sort | Mixed matrix membranes containing aspartic acid functionalized graphene oxide for enhanced oil-water emulsion separation |
| topic | Engineering Chemical engineering Environmental sciences Pollution and contamination Mixed matrix membrane Graphene Functionalized graphene oxide Aspartic acid Polysulfone Oil-water separation Fouling Porosity |