来自咖啡废物的环保和可持续的双子离子液体表面活性剂:设计,表面活性,油污处理和抗菌性能
Reda Abdel-Hameed1,2, Odeh A O Alshammari2,3, Asmaa Hegazy1,2
1Basic Science Department, Preparatory Year, University of Ha'il 81442 Hail Saudi Arabia.
RSC advances
|January 16, 2026
概括
基于环保的离子液体基的双子星电离子表面活性剂是从自然废物中合成的. 这些表面活性剂表现出优异的表面活性,在各种水盐度中具有石油分散能力,并具有强大的抗微生物特性,特别是在对抗阳性细菌.
科学领域:
- 绿色化学和材料科学 绿色化学和材料科学
- 超分子化学和表面科学
- 抗菌剂和生物技术 抗菌剂和生物技术
背景情况:
- 离子液体 (ILs) 被探索为传统溶剂和表面活性剂的可持续替代品.
- 基于IL的阴离子表面活性剂具有双重功能,将IL特性与表面活性相结合.
- 应用范围包括各种行业的腐蚀抑制,抗菌作用,乳化和分散.
研究的目的:
- 从天然废物前体中合成新的基于离子液体的双子离子表面活性剂 (ILGCS).
- 评估物理化学性质,表面活性和作为石油收集/分散剂的性能.
- 评估合成ILGCS对各种病原体的抗菌疗效.
主要方法:
- 从咖啡粉中提取混合脂肪酸,然后进行四分化,以获得ILGCS (4a-d).
- 使用FT-IR和NMR光谱学进行表征 (H和C).
- 评估表面张力,临界菌度 (CMC),表面压力和抗菌活性.
主要成果:
- 化合物4d表现出较高的表面活性 (最低的CMC,最高的表面压力,最低的表面张力).
- ILGCS在淡水和海水中表现出卓越的石油分散效率,以及在蒸水中收集石油的特性.
- 化合物4d显示出针对格拉姆阳性细菌 (L. monocytogenes,S. aureus) 的显著抗菌活性,以及针对格拉姆阴性细菌和Candida albicans的中等活性.
结论:
- 从自然废物中合成的ILGCS是有效的多功能材料.
- 化合物4d是需要强烈表面活性的应用的有希望的候选物,例如乳化和洗剂.
- 该研究强调了废物衍生ILGCS作为环境修复和抗微生物应用的可持续解决方案的潜力.
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