Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/163512
Title: Synergistic effect of highly porous microstructured support and co-solvent assisted interfacial polymerization on the performance of thin-film composite FO membranes
Authors: Lee, Jaewoo 
Lim, Yu Jie
Low, Jiun Hui
Lee, So Min
Lee, Chung-Hak
Wang, Rong
Bae, Tae-Hyun
Keywords: Engineering::Chemical engineering
Issue Date: 2022
Source: 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
Journal: Desalination
Abstract: 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.
URI: https://hdl.handle.net/10356/163512
ISSN: 0011-9164
DOI: 10.1016/j.desal.2022.115947
Rights: © 2022 Elsevier B.V. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:CEE Journal Articles
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