Journal
PROGRESS IN POLYMER SCIENCE
Volume 123, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.progpolymsci.2021.101470
Keywords
Organic solvent nanofiltration (OSN); Solvent resistant; Membranes; Solvents; Molecular separations; OSN applications
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Funding
- National Research Foundation, Prime Minister's Office, Singapore [NRF-CRP14-2014-01, R-279-0 0 0- 466-281]
- A STAR under its AME IRG Grant [A20E5c0092]
- Ministry of Science and Technology, Taiwan [MOST 110-2222-E-011-022-MY3]
- Ministry of Education, Taiwan
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Organic solvent nanofiltration (OSN) has emerged as an energy-efficient alternative in the field of solvent separations, with the recent advances in fabrication of high-grade polymeric membranes continuously pushing the boundaries of separation performance.
Solvent separations present one of the largest opportunities for membrane technologies. Currently, industries use millions of tons of solvents for the manufacture of drugs, oils and chemicals. Multiple separations and purifications must be conducted in order to purify the products from the solvents. However, the existing separation processes are energy-intensive. Organic solvent nanofiltration (OSN) or solvent resistant nanofiltration has emerged as an energy-efficient alternative to the existing processes. We have summarized the recent advances in the fabrication of state-of-the-art polymeric membranes including integrally skinned asymmetric membranes, thin film composite membranes and nanocomposite membranes in this review. The separation performances of OSN membranes continue to push the boundary in terms of high solvent permeances and rejections to various solutes. The advancements have been achieved through novel membrane materials and innovative fabrication methods. We have also discussed the future outlook of OSN processes and pointed out the potential areas for further research exploration. (c) 2021 Elsevier B.V. All rights reserved.
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