Synergistic effect of highly porous microstructured support and co-solvent assisted interfacial polymerization on the performance of thin-film composite FO membranes
Internal concentration polarization (ICP) in a dense support layer is one of the main reasons holding back forward osmosis (FO) process. In this regard, a highly porous microstructured support (HPμS) featuring a quasi-sponge-free sublayer pore structure can be considered a suitable alternative to de...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/163512 |
| _version_ | 1811682010429652992 |
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| author | Lee, Jaewoo Lim, Yu Jie Low, Jiun Hui Lee, So Min Lee, Chung-Hak Wang, Rong Bae, Tae-Hyun |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Lee, Jaewoo Lim, Yu Jie Low, Jiun Hui Lee, So Min Lee, Chung-Hak Wang, Rong Bae, Tae-Hyun |
| author_sort | Lee, Jaewoo |
| collection | NTU |
| description | Internal concentration polarization (ICP) in a dense support layer is one of the main reasons holding back forward osmosis (FO) process. In this regard, a highly porous microstructured support (HPμS) featuring a quasi-sponge-free sublayer pore structure can be considered a suitable alternative to develop high-performance FO membranes. However, it has not been tested for its effects on FO. This study demonstrates that a TFC membrane prepared using the HPμS works out for FO by inducing 3.35 times higher water flux without compromising a reverse salt flux (Js) compared to a control TFC membrane prepared without support adjustment. The performance improvement could be achieved by HPμS's almost no sponge-like region and lateral walls, which were desirable to minimize ICP. Furthermore, we verified that it is possible to leverage co-solvent assisted interfacial polymerization (CAIP) to further improve FO membrane performances by creating a more permeable active layer. The in-house TFC membrane optimized by the HPμS and CAIP displayed 5.3 times higher FO water flux than the control membrane, while keeping comparable Js. We expect that this research could contribute to kicking the FO membrane performance up a notch by providing a practical example of simultaneous optimization of both support and active layers. |
| first_indexed | 2024-10-01T03:50:02Z |
| format | Journal Article |
| id | ntu-10356/163512 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:50:02Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1635122022-12-08T01:21:22Z Synergistic effect of highly porous microstructured support and co-solvent assisted interfacial polymerization on the performance of thin-film composite FO membranes Lee, Jaewoo Lim, Yu Jie Low, Jiun Hui Lee, So Min Lee, Chung-Hak Wang, Rong Bae, Tae-Hyun School of Civil and Environmental Engineering Interdisciplinary Graduate School (IGS) Nanyang Environment and Water Research Institute Singapore Membrane Technology Centre Engineering::Chemical engineering Forward Osmosis Thin-Film Composite Internal concentration polarization (ICP) in a dense support layer is one of the main reasons holding back forward osmosis (FO) process. In this regard, a highly porous microstructured support (HPμS) featuring a quasi-sponge-free sublayer pore structure can be considered a suitable alternative to develop high-performance FO membranes. However, it has not been tested for its effects on FO. This study demonstrates that a TFC membrane prepared using the HPμS works out for FO by inducing 3.35 times higher water flux without compromising a reverse salt flux (Js) compared to a control TFC membrane prepared without support adjustment. The performance improvement could be achieved by HPμS's almost no sponge-like region and lateral walls, which were desirable to minimize ICP. Furthermore, we verified that it is possible to leverage co-solvent assisted interfacial polymerization (CAIP) to further improve FO membrane performances by creating a more permeable active layer. The in-house TFC membrane optimized by the HPμS and CAIP displayed 5.3 times higher FO water flux than the control membrane, while keeping comparable Js. We expect that this research could contribute to kicking the FO membrane performance up a notch by providing a practical example of simultaneous optimization of both support and active layers. Nanyang Technological University This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government MSIT (Reference number: NRF-2021R1A2C3008570). This research was also supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (grant number: 2021R1I1A3044565). The authors also acknowledge the financial support from the Nanyang Environment and Water Research Institute (Core Fund), Nanyang Technological University, Singapore. 2022-12-08T01:21:22Z 2022-12-08T01:21:22Z 2022 Journal Article Lee, J., Lim, Y. J., Low, J. H., Lee, S. M., Lee, C., Wang, R. & Bae, T. (2022). Synergistic effect of highly porous microstructured support and co-solvent assisted interfacial polymerization on the performance of thin-film composite FO membranes. Desalination, 539, 115947-. https://dx.doi.org/10.1016/j.desal.2022.115947 0011-9164 https://hdl.handle.net/10356/163512 10.1016/j.desal.2022.115947 2-s2.0-85133656551 539 115947 en Desalination © 2022 Elsevier B.V. All rights reserved. |
| spellingShingle | Engineering::Chemical engineering Forward Osmosis Thin-Film Composite Lee, Jaewoo Lim, Yu Jie Low, Jiun Hui Lee, So Min Lee, Chung-Hak Wang, Rong Bae, Tae-Hyun Synergistic effect of highly porous microstructured support and co-solvent assisted interfacial polymerization on the performance of thin-film composite FO membranes |
| title | Synergistic effect of highly porous microstructured support and co-solvent assisted interfacial polymerization on the performance of thin-film composite FO membranes |
| title_full | Synergistic effect of highly porous microstructured support and co-solvent assisted interfacial polymerization on the performance of thin-film composite FO membranes |
| title_fullStr | Synergistic effect of highly porous microstructured support and co-solvent assisted interfacial polymerization on the performance of thin-film composite FO membranes |
| title_full_unstemmed | Synergistic effect of highly porous microstructured support and co-solvent assisted interfacial polymerization on the performance of thin-film composite FO membranes |
| title_short | Synergistic effect of highly porous microstructured support and co-solvent assisted interfacial polymerization on the performance of thin-film composite FO membranes |
| title_sort | synergistic effect of highly porous microstructured support and co solvent assisted interfacial polymerization on the performance of thin film composite fo membranes |
| topic | Engineering::Chemical engineering Forward Osmosis Thin-Film Composite |
| url | https://hdl.handle.net/10356/163512 |
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