UiO-66的合成、结构及应用技术进展

Progress in the synthesis, structure and application of UiO-66

摘要:

金属有机框架（MOFs）材料因具有比表面积大、孔隙率高及孔道易调、易功能化等特点而应用于各研究领域。然而，多数MOFs材料的化学稳定性和水热稳定性较差，极大地限制其应用。锆基MOFs材料UiO-66的骨架坍塌温度高于500 ℃、可承受1.0 MPa的机械压力并且具有超高稳定性从而引起了人们的关注。该文系统介绍了UiO-66制备方法的研究进展，其中干凝胶转化法具有产品收率高、反应体积小及可连续生产等优点更具优势；详细介绍了有机配体、金属节点和掺杂等改性方式对UiO-66结构的影响，结果表明对UiO-66结构进行改性可进一步提高其性能；总结了UiO-66在催化、气体储存和分离等方面的应用；最后，对UiO-66的未来发展方向进行了展望。

Abstract:

Metal-organic frameworks (MOFs) materials are widely used in various research fields due to their large specific surface area, high porosity, easy adjustment of pores and easy functionalization. However, the chemical stability and hydrothermal stability of most MOFs are poor, which greatly limits the application of MOFs. Zirconium-based MOFs material UiO-66 has attracted much attention due to its skeleton collapse temperature higher than 500 ℃, withstands 1.0 MPa mechanical pressure and has ultra-high stability. This paper systematically introduces the research progress of various synthesis methods of UiO-66, and it is believed that the dry gel conversion method has the advantages of high product yield, small reaction volume and continuous production. The effects of organic ligands, metal nodes and doping on the structure of UiO-66 were introduced in detail. The research results show that the modification of UiO-66 structure can further improve its performance. The application of UiO-66 in catalysis, gas storage and separation is summarized. The future development direction of UiO-66 is also prospected.