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乙基酸盐的吸收到金属有机框架

Riikka Kuosmanen¹, Elina Sievänen¹, Manu Lahtinen¹

¹Department of Chemistry, University of Jyvaskyla, P.O. Box 35, Jyvaskyla 40014, Finland.

|October 2, 2023

概括

金属有机框架 (MOFs) 显示出回收有毒的山酸盐,一个采矿化学品的希望. HKUST-1和修改版在从溶液中捕获乙基酸盐 (KEX) 中最有效.

科学领域:

环境化学环境化学
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.

背景情况:

北极采矿扩张需要有效回收危险的矿山化学品,如酸盐.
作为金属收集剂的酸盐对水生生态系统和人类健康构成重大风险.
开发有效的酸盐修复方法对于可持续的采矿实践至关重要.

研究的目的:

调查金属有机框架 (MOFs) 对于协调和去除乙基酸盐 (KEX) 的潜力.
评估各种MOF的有效性,包括HKUST-1,MIL-100(Fe),UIO-66和MIL-100(Al) /MIL-96(Al),在KEX吸收中.
探索MOF合成方法对KEX吸附效率的影响.

主要方法:

在选定的金属有机框架 (MOFs) 中协调乙基酸盐 (KEX).
合成后对MOFs进行修改,以增强KEX吸附.
在不同MOF结构和合成路径中对KEX吸收的比较分析 (MIL-100(Fe的溶热与机械化学).

主要成果:

在低度下,HKUST-1及其合成后改性变体在吸附KEX方面表现出最高的有效性.
根据其合成方法 (溶热与机械化学) 观察到MIL-100(Fe) 的KEX吸收有显著差异.
在测试条件下,UIO-66和MIL-100(Al) /MIL-96(Al) 在捕获KEX方面表现出有限的有效性.

结论:

一些MOF,特别是HKUST-1,显示出对基于酸盐的采矿化学品有效回收的巨大潜力.
合成方法对MOF如MIL-100(Fe) 在吸附KEX的性能产生了重大影响.
进一步研究以MOF为基础的酸盐整治可能会导致更可持续和环保的采矿业务.

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