Development of ZSM-22/Polyethersulfone Membrane for Effective Salt Rejection
ZSM-22/polyethersulfone membranes were prepared for salt rejection using modelled brackish water. The membranes were fabricated via direct ZSM-22 incorporation into a polymer matrix, thereby inducing the water permeability, hydrophilicity and fouling resistance of the pristine polyethersulfone (PES)...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-06-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/12/7/1446 |
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| author | Nyiko M. Chauke Richard M. Moutloali James Ramontja |
| author_facet | Nyiko M. Chauke Richard M. Moutloali James Ramontja |
| author_sort | Nyiko M. Chauke |
| collection | DOAJ |
| description | ZSM-22/polyethersulfone membranes were prepared for salt rejection using modelled brackish water. The membranes were fabricated via direct ZSM-22 incorporation into a polymer matrix, thereby inducing the water permeability, hydrophilicity and fouling resistance of the pristine polyethersulfone (PES) membrane. A ZSM-22 zeolite material with a 60 Si/Al ratio, high crystallinity and needle-like morphologies was produced and effectively used as a nanoadditive in the development of ZSM-22/PES membranes with nominal loadings of 0–0.75 wt.%. The characterisation and membrane performance evaluation of the resulting materials with XRD, BET, FTIR, TEM, SEM and contact angle as well as dead-end cell, respectively, showed improved water permeability in comparison with the pristine PES membrane. These ZSM-22/PES membranes were found to be more effective and superior in the processing of modelled brackish water. The salt rejection of the prepared membranes for NaCl and MgCl<sub>2</sub> was effective, while they exhibited quite improved water flux and flux recovery ratios in the membrane permeability and anti-fouling test. This indicates that different amounts of ZSM-22 nanoadditives produce widely divergent influences on the performance of the pristine PES membrane. As such, over 55% of salt rejection is observed, which means that the obtained membranes are effective in salt removal from water. |
| first_indexed | 2024-03-10T18:50:06Z |
| format | Article |
| id | doaj.art-278135170dc0451db51802722a9bbea3 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T18:50:06Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-278135170dc0451db51802722a9bbea32023-11-20T05:11:26ZengMDPI AGPolymers2073-43602020-06-01127144610.3390/polym12071446Development of ZSM-22/Polyethersulfone Membrane for Effective Salt RejectionNyiko M. Chauke0Richard M. Moutloali1James Ramontja2Department of Chemical Sciences, Faculty of Science, University of Johannesburg, Doornfontein 2028, Johannesburg, South AfricaDepartment of Chemical Sciences, Faculty of Science, University of Johannesburg, Doornfontein 2028, Johannesburg, South AfricaDepartment of Chemical Sciences, Faculty of Science, University of Johannesburg, Doornfontein 2028, Johannesburg, South AfricaZSM-22/polyethersulfone membranes were prepared for salt rejection using modelled brackish water. The membranes were fabricated via direct ZSM-22 incorporation into a polymer matrix, thereby inducing the water permeability, hydrophilicity and fouling resistance of the pristine polyethersulfone (PES) membrane. A ZSM-22 zeolite material with a 60 Si/Al ratio, high crystallinity and needle-like morphologies was produced and effectively used as a nanoadditive in the development of ZSM-22/PES membranes with nominal loadings of 0–0.75 wt.%. The characterisation and membrane performance evaluation of the resulting materials with XRD, BET, FTIR, TEM, SEM and contact angle as well as dead-end cell, respectively, showed improved water permeability in comparison with the pristine PES membrane. These ZSM-22/PES membranes were found to be more effective and superior in the processing of modelled brackish water. The salt rejection of the prepared membranes for NaCl and MgCl<sub>2</sub> was effective, while they exhibited quite improved water flux and flux recovery ratios in the membrane permeability and anti-fouling test. This indicates that different amounts of ZSM-22 nanoadditives produce widely divergent influences on the performance of the pristine PES membrane. As such, over 55% of salt rejection is observed, which means that the obtained membranes are effective in salt removal from water.https://www.mdpi.com/2073-4360/12/7/1446zeolite ZSM-22polymer membranespolyethersulfonesalt rejection |
| spellingShingle | Nyiko M. Chauke Richard M. Moutloali James Ramontja Development of ZSM-22/Polyethersulfone Membrane for Effective Salt Rejection Polymers zeolite ZSM-22 polymer membranes polyethersulfone salt rejection |
| title | Development of ZSM-22/Polyethersulfone Membrane for Effective Salt Rejection |
| title_full | Development of ZSM-22/Polyethersulfone Membrane for Effective Salt Rejection |
| title_fullStr | Development of ZSM-22/Polyethersulfone Membrane for Effective Salt Rejection |
| title_full_unstemmed | Development of ZSM-22/Polyethersulfone Membrane for Effective Salt Rejection |
| title_short | Development of ZSM-22/Polyethersulfone Membrane for Effective Salt Rejection |
| title_sort | development of zsm 22 polyethersulfone membrane for effective salt rejection |
| topic | zeolite ZSM-22 polymer membranes polyethersulfone salt rejection |
| url | https://www.mdpi.com/2073-4360/12/7/1446 |
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