国内外关于制备2D MOF纳米片的方法主要有自上而下及自下而上2种方法，将这2种方法结合使用能得到高产率、均匀形态分散且可控制厚度的纳米片。2D MOF纳米片应用的研究主要在催化、分离、能源转换、储存、传感器和生物医学等方面，研究重点为开发良好的选择性和分离性能、优异的稳定性和耐久性以及较强的催化活性和生物相容性等。

At present,the methods for preparing metal-organic framework (2D MOF) nanosheets in the world mainly include:top-down method (sonication exfoliation,mechanical exfoliation,intercalation and chemical exfoliation,and chemical exfoliation) and bottom-up (interface synthesis method,three-layer synthesis method,and surfactant-assisted synthesis) method.It is concluded that the nanosheets obtained from the top-down method have good yields,but their thickness is difficult to control.The bottom-up method requires the direct synthesis of 2D MOF nanosheets from metal and organic precursors,which can produce nanosheets with uniform and controllable thickness,but this method requires more complicated experimental equipment.As these two methods are combined to use,which can obtain nanosheets with high yield,uniform morphology dispersion and controllable thickness.At present,research on the application of 2D MOF nanosheets in the globe has focused on good selectivity and separation performance,excellent stability and durability,and strong catalytic activity and biocompatibility.Applications of 2D MOF include catalysis,separation,energy conversion,storage,sensors and biomedicine.

杨欢(1995-),女,硕士生