Metal-organic framework material for adsorbing N2O and preparation method thereof

Provided is a metal-organic framework material for adsorbing N2O. The chemical formula of the metal-organic framework material is shown in the specification, wherein n is a natural number greater than and equal to 1, bptc is 3, 3', 5, 5'-biphenyl tetramethyl carboxylic acid ions, DMA is N, N-dimethyl acetamide, and (CH3)2NH2 is dimethylamine positive ions; a preparation method comprises the steps of adding 3, 3', 5, 5'-biphenyl tetramethyl carboxylic acid, nickel acetate, lithium hydroxide monohydrate and concentrated nitric acid to N, N-dimethyl acetamide and distilled water, and heating the mixture. The metal-organic framework material for adsorbing N2O and the preparation method thereof have the advantages that the preparation process of a product is simple, the operation is easy, better acid-base property and heat stability of the prepared metal-organic framework material are achieved, higher adsorption capacity for N2O can be achieved, and the metal-organic framework material can be used for storing N2O.