▎ 摘　　要

NOVELTY - Chiral metal-organic framework composite catalyst comprises nano-flake graphene oxide which is loaded chiral metal organic framework (MOF) crystal, where diameter of crystal is 80-110 nanometer, chemical formula is ((CuL)2H2O)n which comprises two copper ion centers, L (I) ions and one water molecule of two asymmetric chiral ligands H2L. USE - Chiral metal-organic framework composite catalyst used as electrochemical sensing detection enantiomer (claimed). ADVANTAGE - The chiral metal-organic framework composite catalyst is easy to operate, has chiral detection effect, and prepared in simple manner. DETAILED DESCRIPTION - Chiral metal-organic framework composite catalyst comprises nano-flake graphene oxide which is loaded chiral metal organic framework (MOF) crystal, where diameter of crystal is 80-110 nanometer, chemical formula is ((CuL)2H2O)n which comprises two copper ion centers, L of formula (I) ions and one water molecule of two asymmetric chiral ligands H2L. An INDEPENDENT CLAIM is included for a method for preparing chiral metal-organic framework composite catalyst, which involves blending alkaline aqueous solution of the chiral ligand H2L with copper acetate-graphene oxide surface active agent aqueous solution after keeping at room temperature 2-10 minutes for centrifugal separation, washing with water for three times, and drying to obtain 70-75 % yield.