从水中提取纳米塑料的灵宁衍生型疏水性深溶剂
Yuxuan Zhang1, Jameson R Hunter1, Ahamed Ullah1
1Biosystems and Agricultural Engineering, University of Kentucky, Lexington, KY 40506, USA.
Journal of hazardous materials
|February 11, 2024
概括
环保的疏水型深层环保溶剂 (HDES) 从水中有效地提取纳米塑料 (NP). 这一突破为检测和消除水生系统中的塑料污染提供了可持续的解决方案.
科学领域:
- 环境科学 环境科学
- 绿色化学 绿色化学
- 材料科学 材料科学 材料科学
背景情况:
- 微塑料和纳米塑料 (NP) 是普遍存在的环境污染物,对生态系统和人类健康构成风险.
- 传统的NP检测和清除方法在效率和环境影响方面面临挑战.
- 疏水性深层浸泡溶剂 (HDES) 是一个有前途的,环保的替代品,用于污染物提取.
研究的目的:
- 调查基于素的HDES在从水溶液中提取聚钢 (PS) 和聚乙烯四甲酸盐 (PET) 纳米塑料的有效性.
- 评估特定的HDES配方的提取效率和容量.
- 阐明HDESs.通过NP提取的基本机制.
主要方法:
- 使用基于素的疏水性深层环氧溶剂 (HDESs) 进行纳米塑料提取.
- 对PS和PET纳米塑料的量化提取效率和容量.
- 采用福里埃变换红外光谱,接触角度测量,分子动力学模拟和动力学/异热研究来了解提取机制.
主要成果:
- 在PET和PS纳米塑料中实现了高提取效率 (>95%).
- 已证明具有显著的提取能力,可达到PET的525.877 mg/mL和PS的183.520 mg/mL,使用特定的Thymol-2,6-dimethoxyphenol 1:2 HDES.
- 通过机械学研究确定了影响提取过程的关键因素.
结论:
- 基于素的HDE是从水中提取纳米塑料的高效和可持续溶剂.
- 这项研究为开发基于HDES的新技术为纳米塑料检测和修复提供了基础.
- 这些发现有助于解决水生环境中塑料污染的全球挑战.
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