高等学校化学学报 ›› 2023, Vol. 44 ›› Issue (6): 20220746.doi: 10.7503/cjcu20220746

• 研究论文: 无机化学 • 上一篇    下一篇

一种酰胺基Cu-MOF的构筑与吸附性能研究

刘金露, 郭嘉禹, 华佳, 李光华(), 施展, 冯守华   

  1. 吉林大学化学学院, 无机合成与制备化学国家重点实验室, 长春 130012
  • 收稿日期:2022-12-06 出版日期:2023-06-10 发布日期:2023-01-20
  • 通讯作者: 李光华 E-mail:leegh@jlu.edu.cn
  • 基金资助:
    国家自然科学基金(21571077);吉林省科技发展计划项目(20190303010SF)

Construction and Adsorption Properties of an Amide-based Cu-MOF

LIU Jinlu, GUO Jiayu, HUA Jia, LI Guanghua(), SHI Zhan, FENG Shouhua   

  1. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry,College of Chemistry,Jilin University,Changchun 130012,China
  • Received:2022-12-06 Online:2023-06-10 Published:2023-01-20
  • Contact: LI Guanghua E-mail:leegh@jlu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(21571077);the Jilin Provincial Science and Technology Development Plan Project, China(20190303010SF)

摘要:

利用无机铜盐与5-(异烟酰胺基)间苯二甲酸, 通过溶剂热合成法制备了一种新的金属有机骨架材料 [Cu(C14H7N2O5)]·5H2O·DMF; 通过单晶X射线衍射(SCXRD)、 热重分析(TG)、 傅里叶变换红外光谱(FTIR)及气体吸附测试表征了该化合物的微观结构和基本物理化学性质. SCXRD分析结果表明, 该化合物具有由Kagome层状结构组成的三维结构; N2等温吸附-脱附测试结果表明, 该化合物具有889.21 m2/g的BET比表面积和永久孔隙; 理想吸附溶液理论(IAST)计算结果表明, 该化合物对等摩尔CO2/CH4混合气体的分离比为5.52, 说明该化合物能够有效分离CO2/CH4混合气体.

关键词: 溶剂热合成, 金属有机骨架, 酰胺基配体, 气体吸附与分离

Abstract:

A novel metal-organic framework, [Cu(C14H7N2O5)]·5H2O·DMF, was synthesized by solvothermal method with inorganic copper salt and 5-(isonicotinamide) mbenzoic acid as starting materials. The microstructure and basic physical and chemical properties of the compound were characterized by means of single crystal X-ray diffraction(SCXRD), thermogravimetric analysis(TG), Fourier transform infrared spectroscopy(FTIR), as well as gas adsorption and separation. Single crystal diffraction analysis showed that the compound has a 3D structure consisting of Kagome layered structure. Nitrogen isothermal adsorption-desorption test showed that the compound has a high BET surface area of 889.21 m2/g and permanent porosity. The gas separation ratio of the compound is calculated to be 5.52 by the ideal adsorbed solution theory(IAST), indicating that the compound could effectively separate CO2/CH4 gas.

Key words: Solvothermal synthesis, Metal-organic framework, Amide ligand, Gas adsorption and separation

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