Abstract:

Metal-organic frameworks（MOFs） are a kind of organic-inorganic hybrid porous materials formed by self-assembly of metal ions or clusters with organic ligands through coordination bonds.Two-dimensional（2D） MOFs have many unique ad-vantages,such as high specific surface,high porosity,adjustable porous structure,high conductivity and many active sites di-rectly exposed on the surface of the 2D plane.These characteristics make them have good application prospect in gas adsorp-tion,catalysis,energy storage,sensing and other fields.With the rapid development of 2D materials,more and more new 2D MOFs materials have been designed and synthesized.Combined with domestic and foreign researches in recent years,three main methods for preparing 2D MOFs were reviewed in this paper,which included interfacial growth method,surfactant-as-sisted method and exfoliation method.The advantages and disadvantages of these methods were analyzed and compared.Final-ly,the research progress of 2D MOFs was introduced and its future development was also prospected.The preparation of 2D MOFs with low cost,high yield,easy industrialization and environmental friendliness was the focus of research in the future.

Key words: metal-organic frameworks, nanosheets, preparation, exfoliation method