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

IF 4.9 Q1 ENGINEERING, CHEMICAL

Journal of Membrane Science Letters Pub Date : 2022-05-01 DOI:10.1016/j.memlet.2022.100016

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

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引用次数: 16

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.

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可持续纳滤膜基于生物来源的完全可回收聚酯和绿色溶剂

在此，我们报道了一类基于化学可回收脂肪族聚酯(P(4,5- t6gbl))和绿色溶剂的新型生物源纳滤膜。鉴于其化学可回收性和潜在的生物降解性，这些聚酯膜被设计为具有可持续的生命周期。研究了膜厚度和溶剂/非溶剂扩散率对膜形态和有机溶剂纳滤的影响。在连续流式过滤装置中测试了膜的长期稳定性，在8.6±0.1 L m−2 h−1 bar−1时，膜的甲醇渗透率稳定。橄榄苦苷(540 g mol−1)和罗红霉素(837 g mol−1)的排异反应稳定，分别为87%和100%。

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来源期刊

Journal of Membrane Science Letters

CiteScore

4.00

自引率

0.00%

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