疏水性水溶剂功能化石墨烯氧化物纳米复合材料:一种用于抗生素补救的工程解决方案
Anjali Goyal1, Tarek Lemaoui2, Ahmad S Darwish1
1Department of Chemical and Petroleum Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates; Center for Membranes and Advanced Water Technology (CMAT), Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
Journal of colloid and interface science
|April 10, 2025
概括
一种新的石墨烯氧化物 (GO) 纳米复合物有效地从水中去除抗生素美罗. 这种吸附剂GO@Thy:LevA显示出高效率和可重复使用性,为水生抗生素污染提供了一个有希望的解决方案.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
背景情况:
- 水生环境中的抗生素污染对公众健康和生态系统构成重大风险.
- 开发有效的方法来从水中去除制药污染物至关重要.
研究的目的:
- 合成和描述一种基于氧化石墨烯 (GO) 的新型纳米复合材料,以有效地从水溶液中去除美罗 (MEM) 抗生素.
- 研究开发的纳米复合材料的吸附性能,机制和可重复使用性.
主要方法:
- 将石墨烯氧化物 (GO) 浸泡在一种疏水性深度浸泡溶剂 (HDES) 中,具体是硫醇:酸 (Thy:LevA).
- 使用XRD,FTIR,SEM,TEM和XPS等技术对GO@Thy:LevA纳米复合物的表征.
- 在优化条件下进行吸附实验,以确定MEM去除效率.
- 动力学,热力学和先进的统计物理建模 (M2) 了解吸附机制.
- 密度函数理论 (DFT) 和COSMO-RS用于理论阐明相互作用.
主要成果:
- GO@Thy:LevA (1:3) 纳米复合材料显示MEM的高吸附能力为91.51 mg/g,明显高于原始GO (63.50 mg/g).
- 吸附遵循伪第一阶动力模型,是自发的和内热的.
- 先进的模型和DFT/COSMO-RS计算为吸附机制提供了分子层面的洞察力.
- 这种纳米复合材料在5个吸附-脱附周期中表现出极好的可重复使用性.
结论:
- 合成的GO@Thy:LevA纳米复合材料是一种高效的吸附剂,可以从污染水中去除美罗.
- 该研究提供了对吸附机制的全面了解,并强调了该材料在实际环境修复应用中的潜力.
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