高等学校化学学报 ›› 2020, Vol. 41 ›› Issue (11): 2415-2420.doi: 10.7503/cjcu20200460

• 庆祝《高等学校化学学报》复刊40周年专栏 • 上一篇    下一篇

基于咔唑羧酸配体构筑铁基金属有机框架及其对CO2/CH4混合气体的分离性质

夏雨沛1, 王晨雪1, 郑金玉3, 李娜1(), 常泽1,2(), 卜显和1   

  1. 1.南开大学材料科学与工程学院, 天津市金属与分子基材料化学重点实验室, 天津 300350
    2.中国科学院福建物质结构研究所, 结构化学国家重点实验室, 福州 350002
    3.中国石化石油化工科学研究院, 催化材料与反应工程国家重点实验室, 北京 100083
  • 收稿日期:2020-07-16 出版日期:2020-11-10 发布日期:2020-11-06
  • 通讯作者: 李娜 E-mail:lina@nankai.edu.cn;changze@nankai.edu.cn
  • 作者简介:常 泽, 男, 博士, 副教授, 主要从事多孔晶态材料的功能导向构筑与性能研究. E-mail: changze@nankai.edu.cn
  • 基金资助:
    国家自然科学基金(批准号(21671112);21905142)和中国石化石油化工科学研究院开放基金资助

Construction of a Fe-MOF Based on Carbazole-carboxylate Ligand for CO2/CH4 Separation

XIA Yupei1, WANG Chenxue1, ZHENG Jinyu3, LI Na1(), CHANG Ze1,2(), BU Xianhe1   

  1. 1.Tianjin Key Laboratory of Metal and Molecule?Based Material Chemistry,School of Materials Science and Engineering,Nankai University,Tianjin 300350,China
    2.State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fujian 350002,China
    3.State Key Laboratory of Catalytic Materials and Reaction Engineering,Research Institute of Petroleum Processing,SINOPEC,Beijing 100083,China
  • Received:2020-07-16 Online:2020-11-10 Published:2020-11-06
  • Contact: LI Na E-mail:lina@nankai.edu.cn;changze@nankai.edu.cn
  • Supported by:
    Supported by the National Natural Science Foundation of China(21671112);the Foundation of Research Institute of Petroleum Processing, SINOPEC, China

摘要:

通过咔唑羧酸配体(H3L)与三核铁簇[Fe3(μ3-O)(CH3COO)6]在水热条件下反应, 合成了具有三维骨架结构的铁基金属有机框架(1). 气体吸附实验结果表明, 化合物1具有高的比表面积且对CO2的吸附量大于对CH4的吸附量. 理想溶液吸附理论(IAST)计算结果表明, 化合物1在100 kPa及温度分别为273和298 K下对CO2/CH4(体积比为0.5∶0.5)混合气体的分离比分别为3.52和3.15, 预示其可以作为一种CO2/CH4分离型材料.

关键词: 金属有机框架, 铁基金属有机框架, 咔唑, 气体吸附分离

Abstract:

A Fe-MOF(metal-organic framework)(1) was synthesized using 4,4′,4″-(9H-carbazole-3,6,9-triyl)-tribenzoic acid(H3L) and [Fe3μ3-O)(CH3COO)6] cluster under solvothermal condition. The structure of the ompound 1 was characterized by X-ray crystallography. Compound 1 possessed a 3D framework with a high specific area. The IAST(Ideal Adsorbed Solution Theory) selectivity of compound 1 towards CO2/CH4 (volume ratio 0.5∶0.5) is 3.52(273 K) and 3.15(298 K), respectively. Gas sorption experiments reveal that compound 1 can serve as a candidate for CO2/CH4 separation.

Key words: Metal-organic framework(MOF), Fe-based MOFs, Carbazole, Gas sorption and separation

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