一种酰胺基Cu-MOF的构筑与吸附性能研究  

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

作　　者：刘金露 郭嘉禹 华佳[1] 李光华[1] 施展[1] 冯守华[1] LIU Jinlu;GUO Jiayu;HUA Jia;LI Guanghua;SHI Zhan;FENG Shouhua(State Key Laboratory of Inorganic Synthesis and Preparative Chemistry,College of Chemistry,Jilin University,Changchun 130012,China)

机构地区：[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

出　　处：《高等学校化学学报》2023年第6期16-22,共7页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:21571077);吉林省科技发展计划项目(批准号:20190303010SF)资助。

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(C_(14)H_(7)N_(2)O_(5))]·5H_(2)O·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;N_(2)等温吸附-脱附测试结果表明,该化合物具有889.21 m^(2)/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CO_(2)/CH_(4)混合气体的分离比为5.52,说明该化合物能够有效分离CO_(2)/CH_(4)混合气体.A novel metal-organic framework,[Cu(C_(14)H_(7)N_(2)O_(5))]·5H_(2)O·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 m^(2)/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 CO_(2)/CH_(4) gas.

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 

分 类 号：O614.3[理学—无机化学]