A high flux continuous thin UiO-66-NH2 membrane (CTUM) for rapid dyes separation

IF 8.1 1区工程技术 Q1 ENGINEERING, CHEMICAL

Separation and Purification Technology Pub Date : 2025-02-03 DOI:10.1016/j.seppur.2025.131914

Xingxing Wang, Jian Gao, Shuaichuan Cui, Shihan Liu, Yifan Huang, Yifan Zhang, Pengyang Deng

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引用次数: 0

Abstract

Separation membranes with high solvent permeation and rejection are attractive for energy conservation in waste solvents separation. Herein, ultra-high flux dye separation membrane was firstly obtained by in situ growing continuous thin MOF membranes on commercial non woven fabrics, which overcome the “trade-off” effect of traditional separation membranes. The continuity of MOF membrane is closely related to the grafting density of maleic anhydride (MAH), and the thickness and surface morphology of continuous thin UiO-66-NH₂ membrane (CTUM) can be controlled by tuning reaction time. The CTUM exhibits a molecule weight cut-off of 950 Da and organic solvents permeation of > 2200 L m⁻²h⁻¹ bar⁻¹ with the rose bengal (RB) rejection of 99.39 %. The selectivity of CTUM depends on the size screening and electrorepulsion effect, and the permeation of CTUM is at least 10 times higher than conventional separation membranes. Meanwhile, the CTUM is durable under mechanical friction and during filtration. Our work represent a reliable way to make durable MOF membranes for ultra-high permeation organic solvent filtration, which lay a foundation for further exploration of high performance separating membranes.

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来源期刊

Separation and Purification Technology 工程技术-工程：化工

CiteScore

14.00

自引率

12.80%

发文量

2347

审稿时长

43 days

期刊介绍： Separation and Purification Technology is a premier journal committed to sharing innovative methods for separation and purification in chemical and environmental engineering, encompassing both homogeneous solutions and heterogeneous mixtures. Our scope includes the separation and/or purification of liquids, vapors, and gases, as well as carbon capture and separation techniques. However, it's important to note that methods solely intended for analytical purposes are not within the scope of the journal. Additionally, disciplines such as soil science, polymer science, and metallurgy fall outside the purview of Separation and Purification Technology. Join us in advancing the field of separation and purification methods for sustainable solutions in chemical and environmental engineering.