▎ 摘　　要

NOVELTY - Preparing graphene oxide metal ion composite antibacterial filter core involves preparing metal ion complex water solution, dissolving metal salt in distilled water, adding oxime compound to form a solution one, preparing graphene oxide metal ion water dispersion, adding the solution one into the graphene oxide water solution to form solution two, performing ultrasonic dispersion to the solution two to form graphene oxide metal ion water dispersion, preparing antibacterial nonwoven fabric, grfting graphene oxide metal ion aqueous dispersion to the nonwoven fabric, forming graphene oxide metal ion composite layer on the nonwoven fabric, preparing the antibacterial nonwoven fabric step four, preparing antibacterial filter core product and folding the antibacterial nonwoven fabric into antibacterial filter core. USE - Method for preparing graphene oxide metal ion composite antibacterial filter core. ADVANTAGE - The method improves antibacterial ability of the filter core product.