化工新型材料

化工新型材料 ›› 2022, Vol. 50 ›› Issue (5) : 112-114. DOI: 10.19817/j.cnki.issn1006-3536.2022.05.023

新材料与新技术

离子液体修饰金属有机框架材料的制备及表征

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Preparation and characterization of ionic liquid modified MOF

Zhang Yushu¹, Jia Hongge¹, Li Jun²

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Received
2021-04-08
Issue Date	Revised Date
2022-06-06	2021-04-08

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摘要

利用离子液体具有良好相容性的特点,对金属有机框架UiO-66-NH₂进行合成后修饰。通过微波辐射辅助法合成了金属有机框架材料UiO-66-NH₂,并对其进行修饰合成了[HOOCMMIm]Br@UiO-66-NH₂,产率达65%。对其进行表面形貌观察,离子液体修饰的[HOOCMMIm]Br@UiO-66-NH₂骨架材料较UiO-66-NH₂粒径变大;X射线衍射表征显示,修饰后的[HOOCMMIm]Br@UiO-66-NH₂仍保持原有骨架结构;在77K时氮气物理吸附测试结果表明,比表面积较UiO-66-NH₂提高了46.4%,孔体积增大了49.3%。

Abstract

The metal-organic framework(MOF) UiO-66-NH₂ was post-synthetically modified by taking advantage of the characteristics of good compatibility of ionic liquids.The MOF UiO-66-NH₂ was synthesized by microwave radiation-assisted method and modified to synthesize [HOOCMMIm]Br@UiO-66-NH₂ in 65% yield.The surface morphology was observed,and the ionic liquid modified [HOOCMMIm]Br@UiO-66-NH₂ skeleton material became larger in size than UiO-66-NH₂.XRD characterization showed that the modified [HOOCMMIm]Br@UiO-66-NH₂ still kept the original skeleton structure.The results of nitrogen physisorption test at 77 K showed that the specific surface area increased by 46.4% and the pore volume increased by 49.3% compared with that of UiO-66-NH₂.

关键词

金属有机框架 / 离子液体 / UiO-66-NH₂

Key words

metal-organic frameworks / ionic liquid / UiO-66-NH₂

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离子液体修饰金属有机框架材料的制备及表征[J]. 化工新型材料, 2022, 50(5): 112-114 DOI:10.19817/j.cnki.issn1006-3536.2022.05.023

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