High-performance polyurea thin-film composite membranes: Tailored interfacial polymerization for efficient bioethanol dehydration

IF 8.4 1区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of Membrane Science Pub Date : 2025-03-22 DOI:10.1016/j.memsci.2025.123985

Micah Belle Marie Yap Ang , Hsiao-Yu Chou , Jeremiah C. Millare , Shu-Hsien Huang

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Abstract

In this study, we developed a series of advanced polyurea composite membranes using interfacial polymerization of various amine monomers (ethylenediamine (EDA), diethylenetriamine (DETA), and 2,2′,2″-nitrilotriethylamine (NTEA)) with diisocyanate monomers (1,6-diisocyanatohexane (HDI), m-xylylene diisocyanate (XDI), and 1,3-bis(isocyanatomethyl)cyclohexane (BIMC)) on modified polyacrylonitrile (mPAN) supports. These membranes were optimized and evaluated for pervaporation-based dehydration of a 90 wt% aqueous ethanol solution. Through a detailed investigation of the chemical structure via ATR-FTIR spectroscopy and morphological analysis using SEM, we identified key factors influencing membrane performance, including the hydrolysis time of the mPAN support, monomer structure, and polymerization conditions. The optimized TFC (DETA-XDI) membrane, synthesized with 1.0 wt% DETA and XDI solutions under controlled conditions, demonstrated an exceptional balance of permeation rate (462 g/m²h) and water selectivity (99.1 wt%), positioning it as a promising candidate for efficient bioethanol dehydration processes.

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来源期刊

Journal of Membrane Science 工程技术-高分子科学

CiteScore

17.10

自引率

17.90%

发文量

1031

审稿时长

2.5 months

期刊介绍： The Journal of Membrane Science is a publication that focuses on membrane systems and is aimed at academic and industrial chemists, chemical engineers, materials scientists, and membranologists. It publishes original research and reviews on various aspects of membrane transport, membrane formation/structure, fouling, module/process design, and processes/applications. The journal primarily focuses on the structure, function, and performance of non-biological membranes but also includes papers that relate to biological membranes. The Journal of Membrane Science publishes Full Text Papers, State-of-the-Art Reviews, Letters to the Editor, and Perspectives.