Reverse osmosis desalination membrane formed from weak polyelectrolytes by spin assisted layer by layer technique
Thin film bi-polar membranes were prepared by depositing alternate layers of polyallylamine hydrochloride (PAH) and polyacrylic acid (PAA) by Spin Assisted Layer-by-Layer (SA-LbL) coating technique. These polyionic coatings were deposited on silicon wafer substrates as well as on polysulfone ultrafi...
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| Format: | Article |
| Language: | English |
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Informa UK Limited
2020
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| Online Access: | https://hdl.handle.net/1721.1/127194 |
| _version_ | 1826208598394404864 |
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| author | Fadhillah, Farid Zaidi, S. M. Javaid Khan, Zafarullah Hammond, Paula T |
| author2 | Massachusetts Institute of Technology. Department of Chemistry |
| author_facet | Massachusetts Institute of Technology. Department of Chemistry Fadhillah, Farid Zaidi, S. M. Javaid Khan, Zafarullah Hammond, Paula T |
| author_sort | Fadhillah, Farid |
| collection | MIT |
| description | Thin film bi-polar membranes were prepared by depositing alternate layers of polyallylamine hydrochloride (PAH) and polyacrylic acid (PAA) by Spin Assisted Layer-by-Layer (SA-LbL) coating technique. These polyionic coatings were deposited on silicon wafer substrates as well as on polysulfone ultrafiltration (UF) membranes. The suitability of these coated membranes for use as reverse osmosis seawater desalination membranes was investigated using a single pass-cross flow permeation test cell. Membrane testing showed that with only 35 bi-layers of PAH/PAA on a polysulfone ultra filtration membranes, NaCl rejection of 88% and water permeability of 0.22 l.m-2h-1bar-1 was achieved for feed water with NaCl concentration of 15000 ppm and pressure of 700 psig. Keywords: Reverse Osmosis, Nanofiltration, Membranes, Spin Assisted Layer-by-Layer, PAA/ PAH, Polysulfone, Plasma |
| first_indexed | 2024-09-23T14:08:09Z |
| format | Article |
| id | mit-1721.1/127194 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T14:08:09Z |
| publishDate | 2020 |
| publisher | Informa UK Limited |
| record_format | dspace |
| spelling | mit-1721.1/1271942022-10-01T19:26:29Z Reverse osmosis desalination membrane formed from weak polyelectrolytes by spin assisted layer by layer technique Fadhillah, Farid Zaidi, S. M. Javaid Khan, Zafarullah Hammond, Paula T Massachusetts Institute of Technology. Department of Chemistry Thin film bi-polar membranes were prepared by depositing alternate layers of polyallylamine hydrochloride (PAH) and polyacrylic acid (PAA) by Spin Assisted Layer-by-Layer (SA-LbL) coating technique. These polyionic coatings were deposited on silicon wafer substrates as well as on polysulfone ultrafiltration (UF) membranes. The suitability of these coated membranes for use as reverse osmosis seawater desalination membranes was investigated using a single pass-cross flow permeation test cell. Membrane testing showed that with only 35 bi-layers of PAH/PAA on a polysulfone ultra filtration membranes, NaCl rejection of 88% and water permeability of 0.22 l.m-2h-1bar-1 was achieved for feed water with NaCl concentration of 15000 ppm and pressure of 700 psig. Keywords: Reverse Osmosis, Nanofiltration, Membranes, Spin Assisted Layer-by-Layer, PAA/ PAH, Polysulfone, Plasma King Fahd University of Petroleum and Minerals National Service Training Program (NSTP) (NSTP research grant number 08WAT-80-4) 2020-09-08T14:03:22Z 2020-09-08T14:03:22Z 2012-08 2010-09 2019-08-20T16:29:15Z Article http://purl.org/eprint/type/JournalArticle 1944-3994 1944-3986 https://hdl.handle.net/1721.1/127194 Fadhillah, Farid, S. M. Javaid Zaidi, Zafarullah Kahn, and Paula T. Hammond. "Reverse osmosis desalination membrane formed from weak polyelectrolytes by spin assisted layer by layer technique." Desalination and Water Treatment, 34,1-3 (2011):p.44-49. en http://dx.doi.org/10.5004/dwt.2011.2856 Desalination and Water Treatment Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Informa UK Limited Other repository |
| spellingShingle | Fadhillah, Farid Zaidi, S. M. Javaid Khan, Zafarullah Hammond, Paula T Reverse osmosis desalination membrane formed from weak polyelectrolytes by spin assisted layer by layer technique |
| title | Reverse osmosis desalination membrane formed from weak polyelectrolytes by spin assisted layer by layer technique |
| title_full | Reverse osmosis desalination membrane formed from weak polyelectrolytes by spin assisted layer by layer technique |
| title_fullStr | Reverse osmosis desalination membrane formed from weak polyelectrolytes by spin assisted layer by layer technique |
| title_full_unstemmed | Reverse osmosis desalination membrane formed from weak polyelectrolytes by spin assisted layer by layer technique |
| title_short | Reverse osmosis desalination membrane formed from weak polyelectrolytes by spin assisted layer by layer technique |
| title_sort | reverse osmosis desalination membrane formed from weak polyelectrolytes by spin assisted layer by layer technique |
| url | https://hdl.handle.net/1721.1/127194 |
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