▎ 摘　　要

NOVELTY - Manufacture of nano-silver-graphene composite material involves crushing natural persimmon through 60 mesh sieve, adding deionized water and 0.1-0.5 %mass enzyme, ultrasonically-extracting at 30-50 degrees C under power of 80-120w for 10-60 minutes, hydrolyzing such that pH is 5-6, vacuum-filtering, drying to form persimmon tannin, mixing 0.01-10 %mass persimmon tannin solution, 0.01-100 g/L silver-ammonia solution and 0.01-0.05 g/L graphene oxide solution, ultrasonically-treating at 40-80 degrees C for 1-24 hours, filtering, washing with deionized water and vacuum-drying. USE - Manufacture of nano-silver-graphene composite material (claimed). ADVANTAGE - The method enables efficient manufacture of nano-silver-graphene composite material in short period of time.