Metal modified covalent organic framework material as well as preparation method and application thereof

The invention discloses a metal modified covalent organic framework material as well as a preparation method and application thereof, and belongs to the technical field of piezoelectric catalysis. The covalent organic framework material of the metal modified covalent organic framework material is synthesized by using 5, 5 '-diamino-2, 2'-dipyridyl and 2, 4, 6-triformyl phloroglucinol as precursors, the metal is modified to obtain the metal modified covalent organic framework material, and the metal comprises one or more of antimony, molybdenum, chromium, calcium, magnesium, manganese and barium. The metal-modified covalent organic framework M-TfpBpy-COF can generate charge shift after deformation under the stimulation of mechanical vibration, water oxidation and oxygen reduction reaction are simultaneously carried out at the active center of the material surface to generate hydrogen peroxide, the adjustability and selectivity of the covalent organic framework structure provide rich sites for metal loading, an