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Extraction: Advanced Methods

Extraction: Advanced Methods

Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...

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Updated: Jul 15, 2025

Author Spotlight: Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers

Author Spotlight: Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers

Published on: May 12, 2023

金属有机框架用于甲酸盐捕获.

Ezgi Gulcay-Ozcan^1,2,3, Paul Iacomi^1,4, Pedro F Brântuas¹

¹Institut Charles Gerhardt Montpellier, Univ. Montpellier, CNRS, ENSCM, Montpellier F-34293, France.

ACS applied materials & interfaces

|October 4, 2023

概括

室内空气中的甲酸 (PAE) 构成健康风险. 金属有机框架 (MOFs) 对捕获这些挥发性污染物非常有希望,为改善室内空气质量提供了一个新的解决方案.

关键词:

MOFs 的使用情况.吸附吸附是一种吸附.捕获捕获捕获的时间双甲基酸盐是什么?甲基二甲甲酸二甲基甲酸二甲基甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸二甲酸甲酸 Ester 是一种甲酸.模拟器模拟器模拟器模拟器

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相关实验视频

Last Updated: Jul 15, 2025

Author Spotlight: Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers

Author Spotlight: Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers

Published on: May 12, 2023

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Published on: October 6, 2023

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Published on: September 5, 2014

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:

甲酸 (PAE) 是室内空气污染物,与内分泌干扰和其他健康问题有关.
有效的减排策略对于保持健康的室内环境至关重要.
使用先进材料的物理吸收为PAE去除提供了一个潜在的解决方案.

研究的目的:

确定和评估金属有机框架 (MOFs) 以有效地从室内空气中捕获挥发性甲酸 (PAE).
调查MOFs对代表PAE分子的吸附能力和机制.
通过实验研究验证计算预测.

主要方法:

对20,000多个MOF结构进行高通量计算选,以确定二甲基甲酸盐 (DMP) 吸附的候选物.
使用MOF-74 ((Ni) 与二甲基酸盐 (DMM) 作为DMP的替代物进行重量计吸异温实验.
蒙特卡洛模拟以了解吸附行为并验证实验结果.

主要成果:

MOF-74 ((Ni) 被确定为具有高预测DMP吸收率 (0.20 g g-1) 和吸附度 (109.9 kJ mol-1) 的顶级候选物.
实验验证表明MOF-74 (Ni) 能够有效地吸附DMM (0.35gg-1在343K和15ppm).
显著的DMM吸附能力即使在真空中加热到473K后也保持不变,这表明强大的结合.

结论:

金属有机框架,特别是MOF-74 (Ni),显示出捕获挥发性甲酸污染物的巨大潜力.
这项研究强调了MOF在解决与PAE污染相关的室内空气质量问题的有效性.
结合的计算和实验方法为发现新型吸附材料提供了强大的方法.