化工进展 ›› 2024, Vol. 43 ›› Issue (12): 6944-6956.DOI: 10.16085/j.issn.1000-6613.2023-2143

• 资源与环境化工 • 上一篇    

用于CO2捕获的金属有机框架材料改性研究进展

肖翩翩(), 卓超越, 钟瑾荣, 张跃飞()   

  1. 长沙理工大学化学化工学院,湖南 长沙 410114
  • 收稿日期:2023-12-04 修回日期:2024-02-14 出版日期:2024-12-15 发布日期:2025-01-11
  • 通讯作者: 张跃飞
  • 作者简介:肖翩翩(2000—),女,硕士研究生,研究方向为二氧化碳分离与利用。E-mail:1900413329@qq.com
  • 基金资助:
    湖南省研究生科研创新项目(CX20230920)

Recent advances on modification of metal-organic frameworks for CO2 capture

XIAO Pianpian(), ZHUO Chaoyue, ZHONG Jinrong, ZHANG Yuefei()   

  1. School of Chemistry and Chemical Engineering, Changsha University of Science and Technology, Changsha 41014, Hunan, China
  • Received:2023-12-04 Revised:2024-02-14 Online:2024-12-15 Published:2025-01-11
  • Contact: ZHANG Yuefei

摘要:

金属有机框架材料(MOF)因其高比表面积、高选择性、结构可调性以及可再生性的优势而广泛应用于CO2吸附与分离领域。首先对比了MOF与其他CO2处理方式以及CO2吸附材料的优缺点,得出MOF的独特优势。再根据MOF的结构以及化学特性,归纳了其对CO2的物理和化学吸附机理,深入揭示了MOF作为CO2吸附材料的基本原理。在此基础上,针对MOF在性能和结构上仍然存在且需要改进的缺陷,通过对比不同种类MOF的性能,对MOF的功能化改性(多金属掺杂、多材料复合、构建缺陷、胺功能化、极性基团功能化等),以及改性后MOF的CO2吸附性能的研究进展进行了归纳。通过对这些改性方式的优缺点进行评估,并考虑其适用性和经济性,旨在找到更好的MOF改性方法。MOF改性未来的发展需要对多官能团负载、合成及负载方法绿色化、比表面积与结合位点比例等进行更深入的研究,此外改性表征方法的先进性也是未来MOF改性发展的关键要素。

关键词: 金属有机框架材料, 二氧化碳, 吸附, 选择性, 改性

Abstract:

Metal-organic frameworks (MOFs) are widely used in the field of CO2 adsorption and separation due to their high specific surface area, high selectivity, structural tunability and renewability. Firstly, the advantages and disadvantages of MOFs and other CO2 treatment methods and CO2 adsorption materials were compared, and the unique advantages of MOFs were obtained. According to the structure and chemical characteristics of MOFs, the physical and chemical adsorption mechanism of CO2 was summarized, and the basic principle of MOFs as CO2 adsorption materials was deeply revealed. On this basis, in view of the defects that still existed in the performance and structure of MOFs and needed to be improved, the research progress of the functionalization modification of MOFs (multi-metal doping, multi-material composite, construction defects, amine functionalization, polar group functionalization, etc.) and the CO2 adsorption performance of modified MOFs were summarized by comparing the performance of different types of MOFs. By evaluating the advantages and disadvantages of these modification methods and considering their applicability and economy, the aim was to find a better modification method for MOFs. The future development of MOFs modification required further in-depth research on the loading of multiple functional groups, greening of synthesis and loading methods and the ratio of surface area to binding sites. Additionally, the advancement of characterization methods for modifications was a key element in the future development of MOFs modification.

Key words: metal-organic framework, carbon dioxide, adsorption, selectivity, modification

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