在离子液体基提取中,提高多级超分子组件的辐射稳定性
Ce Shi1, Shijie Xiong1, Shengxiang Li1
1Beijing National Laboratory for Molecular Sciences (BNLMS), Fundamental Science on Radiochemistry and Radiation Chemistry Laboratory, Center for Applied Physics and Technology, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China.
The journal of physical chemistry. B
|August 14, 2023
概括
三替代基功能化的离子液体 (IL-2) 在多级超分子组合 (MSSA) 提取系统中增强了辐射稳定性,确保了宏观组合球体的形成,并在放射性环境中保持高金属离子提取效率.
科学领域:
- 材料科学 材料科学 材料科学
- 放射化学 放射化学是指辐射化学.
- 超分子化学 超分子化学
背景情况:
- 使用基功能化离子液体 (ILs) 的多级超分子组装 (MSSA) 策略显示,它有望在放射性环境中分离金属离子.
- 了解这些MSSA系统的辐射稳定性对于其实际应用至关重要.
研究的目的:
- 为了分析MSSA系统的辐射稳定性,采用了两种特定的基功能化的离子液体:1-(2-基乙基) -3-甲基利米达二三甲基硫) 胺基 (IL-1) 和1-(2-基乙基) -2-,3-二甲基利米达二三甲基硫) 胺基 (IL-2).
- 调查IL结构对在玛辐射下MSSA系统稳定性的影响,以有效地分离金属离子.
主要方法:
- 含有IL-1和IL-2的MSSA提取系统的马辐射.
- 使用紫外线光谱,1H NMR和ESI-HRMS进行了表征.
- 评估宏观组装 (MA) 球体形成和提取效率.
主要成果:
- 马辐射阻止了MSSA系统中MA球体的形成,使得IL-1被取代.
- 三替代的IL-2显著提高了MSSA系统的辐射稳定性,即使在辐射后也可以形成MA球.
- 使用IL-2保持了高金属离子提取效率.
结论:
- 异位 (IL-1) 和三位 (IL-2) 离子液体之间的结构差异极大地影响MSSA提取系统的辐射稳定性.
- 三基替代基功能化的离子液体具有优越的抗辐射能力,使其适合在放射性环境中进行金属离子分离.
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