Sustainable nanofiltration membranes based on biosourced fully recyclable polyesters and green solvents
Sustainable nanofiltration membranes based on biosourced fully recyclable polyesters and green solvents
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DOI：
10.1016/j.memlet.2022.100016
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发表时间：
2022-05-01
期刊：
影响因子：
--
通讯作者：
Szekely, Gyorgy
中科院分区：
文献类型：
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作者：
Hardian, Rifan;Cywar, Robin M.;Szekely, Gyorgy
在这里，我们报道了一种新型的基于可化学回收的脂肪族聚酯(P(4，5-T6GBL))和绿色溶剂的生物源纳滤膜。考虑到它们的化学可循环性和潜在的生物降解性，这些聚酯膜的设计具有可持续的生命周期。考察了膜厚和溶剂/非溶剂扩散系数对膜形态和有机溶剂纳滤性能的影响。在连续摇摆式过滤装置上进行了一周多的膜长期稳定性试验，膜的甲醇渗透率稳定在8.6&0.1 L m-2 h-1bar-1。药物油菜素(540gmol-1)和罗红霉素(837gmol-1)的排异反应曲线也分别稳定在87%和100%。
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 mem-brane 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 & PLUSMN; 0.1 L m-2 h -1 bar-1. The rejection profiles of the pharma-ceuticals oleuropein (540 g mol -1) and roxithromycin (837 g mol -1) were also found to be stable at 87% and 100%, respectively.