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Title: Ultra-strong polymeric hollow fiber membranes for saline dewatering and desalination
Authors: Liang, Can Zeng
Askari, Mohammad 
Choong, Looh Tchuin (Simon)
Chung, Tai-Shung 
Issue Date: 20-Apr-2021
Publisher: Nature Research
Citation: Liang, Can Zeng, Askari, Mohammad, Choong, Looh Tchuin (Simon), Chung, Tai-Shung (2021-04-20). Ultra-strong polymeric hollow fiber membranes for saline dewatering and desalination. Nature Communications 12 (1) : 2338. ScholarBank@NUS Repository.
Rights: Attribution 4.0 International
Abstract: Osmotically assisted reverse osmosis (OARO) has become an emerging membrane technology to tackle the limitations of a reverse osmosis (RO) process for water desalination. A strong membrane that can withstand a high hydraulic pressure is crucial for the OARO process. Here, we develop ultra-strong polymeric thin film composite (TFC) hollow fiber membranes with exceptionally high hydraulic burst pressures of up to 110 bar, while maintaining high pure water permeance of around 3 litre/(m2 h bar) and a NaCl rejection of about 98%. The ultra-strong TFC hollow fiber membranes are achieved mainly by tuning the concentration of the host polymer in spinning dopes and engineering the fiber dimension and morphology. The optimal TFC membranes display promising water permeance under the OR and OARO operation modes. This work may shed new light on the fabrication of ultra-strong TFC hollow fiber membranes for water treatments and desalination. © 2021, The Author(s).
Source Title: Nature Communications
ISSN: 2041-1723
DOI: 10.1038/s41467-021-22684-1
Rights: Attribution 4.0 International
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