Please use this identifier to cite or link to this item: https://doi.org/10.1002/aic.14342
Title: Robust and high performance pressure retarded osmosis hollow fiber membranes for osmotic power generation
Authors: Han, G.
Chung, T.-S. 
Keywords: Hollow fiber
Membrane robustness
Power density
Pressure retarded osmosis
Reverse salt flux
Thin-film composite
Issue Date: Mar-2014
Citation: Han, G., Chung, T.-S. (2014-03). Robust and high performance pressure retarded osmosis hollow fiber membranes for osmotic power generation. AIChE Journal 60 (3) : 1107-1119. ScholarBank@NUS Repository. https://doi.org/10.1002/aic.14342
Abstract: Novel fabrication perspectives have been demonstrated to molecularly construct robust hollow fiber membrane supports for high performance thin-film composite (TFC) pressure retarded osmosis (PRO) membranes. For the first time, we found that the desirable hollow fiber supports should possess high stretch resistance and acceptable ductility. The microstructure strength of the hollow fiber support may have more weights on overall robustness of the TFC PRO membranes than the apparent cross-section morphology. Effectively manipulating the kinetics of phase inversion during spinning by maneuvering bore fluid chemistry, and polymer solution composition is a promising method to tailor the strength of hollow fiber supports. Prestabilization of the TFC membranes at elevated lumen pressures can significantly improve their PRO performance. The newly developed TFC PRO hollow fiber membranes exhibit a power density as high as 16.5 W/m2 and a very low specific reverse salt flux (Js/Jw) of 0.015 mol/L at a hydraulic pressure of 15 bar using synthetic seawater brine (1.0 M NaCl) as the draw solution. © 2014 American Institute of Chemical Engineers.
Source Title: AIChE Journal
URI: http://scholarbank.nus.edu.sg/handle/10635/90044
ISSN: 00011541
DOI: 10.1002/aic.14342
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