基于烯的疏水性欧性溶剂的化学表征及其对Pb的应用 (II) 溶剂提取过程中的复杂性
Mersiha Suljkanović1, Jasmin Suljagić2, Edita Bjelić2
1Faculty of Natural Sciences and Mathematics, University of Tuzla, Urfeta Vejzagića 4, 75000 Tuzla, Bosnia and Herzegovina.
Molecules (Basel, Switzerland)
|May 11, 2024
概括
来自天然烯的环保溶剂有效地从水中提取离子 (Pb (II)). 提摩尔-酸溶剂实现了98%的提取效率,为液体-液体提取 (LLE) 提供了可持续的替代方案.
科学领域:
- 绿色化学 绿色化学
- 环境科学 环境科学
- 分离科学 分离科学
背景情况:
- 在液液提取 (LLE) 中使用的常规溶剂往往有毒且不环保.
- 天然烯,如薄荷醇和胆醇提供潜在的作为较少的毒性,更可持续的溶剂成分.
- 疏水溶剂有效地从水溶液中提取非极性分析物.
研究的目的:
- 描述和评估来自自然烯和有机酸的新型疏水溶剂.
- 评估这些基于的溶剂在从水溶液中提取 (Pb) 离子 (Pb) 的液体-液体提取 (LLE) 的有效性.
- 为了优化提取参数,并确定最有效的溶剂系统.
主要方法:
- 使用天然烯 (mentol,thymol) 作为H键接受剂和使用有机酸 (C8,C10,C14) 作为H键捐赠剂制备疏水溶剂.
- 溶剂性质的表征,包括疏水性和粘度.
- 优化液体-液体提取 (LLE) 参数用于Pb (II) 除去.
- 优化溶剂的应用和提取效率的评估.
主要成果:
- 准备的基于烯的溶剂表现出高水性和低粘度,适合LLE.
- 通过简单,快速的程序和低溶剂消耗,可以实现Pb (II) 的令人满意的提取效率.
- 提摩尔 - 迪卡诺酸 (Thy-DecA) 1: 1 溶剂表现出最高的Pb (II) 提取效率,达到98%.
- 薄荷-酸 (Men-OctA) 1:1和薄荷-酸 (Men-DecA) 1:1的效率分别达到97%和94.3%.
结论:
- 基于天然烯的疏水溶剂是通过LLE去除Pb (II) 的有效和环保的替代品.
- 与基于薄荷醇的系统相比,蒂摩尔 - 迪卡诺酸溶剂在提取方面表现优越.
- 这些绿色溶剂为各种应用中可持续的金属离子分离提供了有希望的方法.
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