激光诱导的石墨烯超膜的抗和抗菌活性
Amit K Thakur1, Hasib Mahbub1, Imtiaz Qavi2
1Department of Chemical Engineering, Texas Tech University, 807 Canton Ave, Lubbock, TX 79409, USA.
Membranes
|January 27, 2026
概括
研究人员通过直接处理聚硫 (PES) 基板来开发激光诱导的石墨烯 (LIG) 超过 (UF) 膜. 这些新的LIG UF膜具有增强的水透性,优越的防腐性和强大的抗菌性质.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 环境科学 环境科学
背景情况:
- 膜污染显著增加了过过程中的运营成本.
- 开发具有更好的防抗性的膜对于高效的水处理至关重要.
- 功能性表面设计提供了一种有效的策略,以减轻膜污染.
研究的目的:
- 使用激光诱导石墨烯 (LIG) 制造具有增强污染抗性的新型超 (UF) 膜.
- 调查LIG功能化对膜性能的影响,包括透,排斥和污染回收.
- 评估开发的LIG UF膜的抗生素污染和抗菌能力.
主要方法:
- 通过对聚乙硫 (PES) 基板进行单步激光照射来制造LIG UF膜.
- 使用扫描电子显微镜对膜表面形态的描述.
- 通过水过试验进行性能评估,包括透率和牛血清白蛋白 (BSA) 排斥.
- 使用BSA,酸 (HA) 和藻酸盐进行污染实验,以评估透回收.
- 对*黄金葡萄球菌*进行抗生素污染试验和抗菌作用的评估.
主要成果:
- 激光功率影响了膜切除厚度和水透率,最佳功率为400 L m-2 h-1 bar-1.
- 在LIG UF膜中,与干净的PES膜 (65-68%) 相比,LIG UF膜在污染后显著改善了透回收率 (78-90%).
- LIG 膜表现出优异的生物膜耐药性和强大的抗菌活性,对抗金黄色葡萄球菌.
- 外部电压和接触时间被确定为优化抗生素污染性能的关键参数.
结论:
- 激光诱导的石墨烯功能化是创建高性能UF膜的可行方法.
- LIG UF 膜提供优越的污染抵抗性和有效的抗生素污染特性.
- 应用电压和接触时间的进一步优化可以提高LIG UF膜的抗生素污染效率,用于实际应用.
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