Antibacterial effect of ethyl-methylimidazolium-based ionic liquids anions on forward osmosis membranes

IF 3.7 3区工程技术 Q2 ENGINEERING, CHEMICAL

Chemical Engineering Research & Design Pub Date : 2025-02-27 DOI:10.1016/j.cherd.2025.02.035

Megawati Zunita , Budiman Batara , Graecia Lugito , I. Gede Wenten , Katja Loos , Sun Theo Constan Lotebulo Ndruru

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引用次数: 0

Abstract

Ionic liquids (ILs) have emerged as promising materials in various sectors, particularly for enhancing membrane separation and antibacterial performance in water and wastewater treatment applications. This study investigates the antibacterial effects of ethyl methylimidazolium ([EMIM]⁺)-based IL anions on forward osmosis (FO) membranes. Imidazolium-based IL cations were synthesized using a microwave method and grafted onto a thin-film composite (TFC) membrane to improve bacterial inhibition and separation performance. A novel approach utilizing ultrasound methods was employed to integrate polyamide (PA) and ILs onto the polysulfone (Psf) membrane surface. Among the tested ILs, [EMIM][NTf₂] demonstrated the highest antibacterial activity against Escherichia coli, as evidenced by agar disk diffusion and total plate count (TPC) measurements. The Psf-PA-[EMIM][NTf₂] membrane significantly outperformed other membranes in antibacterial activity and exhibited excellent FO membrane performance. The results indicate that incorporating ILs into FO membranes enhances hydrophilicity and antibacterial properties, making them highly suitable for water and wastewater treatment. This study provides valuable insights into developing dual-functional membranes with improved antibacterial and separation performance, contributing to more effective and sustainable treatment technologies.

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来源期刊

Chemical Engineering Research & Design 工程技术-工程：化工

CiteScore

6.10

自引率

7.70%

发文量

623

审稿时长

42 days

期刊介绍： ChERD aims to be the principal international journal for publication of high quality, original papers in chemical engineering. Papers showing how research results can be used in chemical engineering design, and accounts of experimental or theoretical research work bringing new perspectives to established principles, highlighting unsolved problems or indicating directions for future research, are particularly welcome. Contributions that deal with new developments in plant or processes and that can be given quantitative expression are encouraged. The journal is especially interested in papers that extend the boundaries of traditional chemical engineering.