Sustainable nanofiltration membranes based on biosourced fully recyclable polyesters and green solvents

Rifan Hardian, Robin M. Cywar, Eugene Y.-X. Chen, Gyorgy Szekely

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Herein, we report a new class of biosourced nanofiltration membranes based on chemically recyclable aliphatic polyesters (P(4,5-T6GBL)) and the use of green solvents. Given their chemical recyclability and potential biodegradability, these polyester membranes were designed to have a sustainable lifecycle. The effect of membrane thickness and solvent/non-solvent diffusivity on membrane morphology and organic solvent nanofiltration were investigated. Long-term membrane stability was tested in a continuous crow-flow filtration rig over a week, which exhibited stable methanol permeance at 8.6 ± 0.1 L m−2 h−1 bar−1. The rejection profiles of the pharmaceuticals oleuropein (540 g mol−1) and roxithromycin (837 g mol−1) were also found to be stable at 87% and 100%, respectively.
Original languageEnglish (US)
Pages (from-to)100016
JournalJournal of Membrane Science Letters
DOIs
StatePublished - Jan 2022

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