Amino acid or amino acid derivative post-synthesized modified high-coordination metal carboxylate metal organic framework composite material as well as preparation method and application thereof

The invention provides a preparation method of a modified high-coordination metal carboxylate metal organic framework composite material by post-synthesis of amino acid or amino acid derivatives, which comprises the following steps: step S1, dissolving high-valence metal salt and carboxylic acid organic ligand in a polar organic solvent, and adding a regulator to obtain a mixed solution; s2, performing solvothermal reaction on the mixed solution, centrifuging to obtain a solid product, and washing and drying to obtain high-coordination metal carboxylate metal organic framework composite powder; s3, ultrasonically dissolving the amino acid or the amino acid derivative in a polar organic solvent to obtain an amino acid or amino acid derivative/polar organic solution; s4, weighing the high-coordination metal carboxylate metal organic framework composite powder, and dispersing the powder into the amino acid or amino acid derivative/polar organic solution to obtain a suspension; and S5, carrying out high-temperatu