化学学报 ›› 2016, Vol. 74 ›› Issue (12): 969-979.DOI: 10.6023/A16090482 上一篇    下一篇

所属专题: 聚集诱导发光

综述

金属-有机骨架材料在色谱分离中的应用

李晓新, 束伦, 陈莎   

  1. 北京工业大学环境与能源工程学院 区域大气复合污染防治北京市重点实验室 北京 100124
  • 投稿日期:2016-09-08 发布日期:2016-12-05
  • 通讯作者: 陈莎 E-mail:chensha@bjut.edu.cn
  • 基金资助:

    项目受国家自然科学基金(21322601和21271015)和研究生科技基金(005000514116501)资助.

Application of Metal-Organic Frameworks in Chromatographic Separation

Li Xiaoxin, Shu Lun, Chen Sha   

  1. Key Laboratory of Beijing on Regional Air Pollution Control, College of Environmental and Energy Engineering, Beijing University of Technology, Beijjing 100124
  • Received:2016-09-08 Published:2016-12-05
  • Supported by:

    Project supported by the Natural Science Foundation of China (21322601 and 21271015), and Graduate Student Science Foundation (005000514116501).

金属-有机骨架材料(Metal-organic frameworks,MOFs),因其具有较好的热稳定性、化学稳定性、可设计性等特点,广泛应用于气体吸附、物质分离、提纯、催化等领域,同时也作为模板制备各种功能材料.MOFs作为色谱分离的材料已得到了较多的研究与应用.按照被分离物质的类别,综述和总结了不同MOFs材料作为色谱固定相的分离效果,重点介绍了MOFs材料的色谱分离机理.MOFs材料的孔径、功能基团和不饱和金属位点在分离中起到重要的作用,最后对MOFs在色谱分离应用中的问题和前景进行了分析和展望.

关键词: 金属-有机骨架材料, 气相色谱, 高效液相色谱, 色谱分离, 色谱柱

Metal-organic frameworks (MOFs) are synthesized via the self-assembling combination of organic ligands and inorganic metals or metal-oxo units (secondary building units,SBUs) using strong bonds to form a porous open crystalline.Because of their outstanding thermal stability,chemical stability and designability,MOFs are successfully applied in various fields,such as gas absorption,separation,purification,catalysis,as well as templates for various functional materials.MOFs are also used as column materials for gas or liquid chromatography separation.In this paper,the studies about MOFs used as stationary phases in gas chromatography and high-performance liquid chromatography were reviewed according to the separated various analytes.We summarized the separation effects of different MOFs for different substances,especially focusing on the separation mechanism of MOFs.The key influence factors on the chromatographic separation,such as pore diameter,functional groups and unsaturated metal sites of MOFs,were expounded.Then,the challenges of MOFs as stationary phases in gas and high-performance liquid chromatography were discussed,which include the mechanism,chiral separation,the limited MOFs in chromatographic separation.The future research in this field should focus on defining separation mechanism,improving their stability and synthesizing the MOFs with special function.

Key words: MOFs, gas chromatography, high-performance liquid chromatography, chromatographic separation, chromatographic column