Preparation method of antibacterial material

The invention discloses a preparation method of an antibacterial material. The preparation method includes: preprocessing diatomite (DE); preparing silver-loaded graphene oxide (Ag-GO); preparing silver-loaded graphene oxide/diatomite (Ag-GO/DE); preparing nano-silver/graphene oxide/diatomite (AgNPs/GO-DE). Compared with the prior art, the preparation method has the advantages that the silver-loaded graphene oxide is compounded with the diatomite by combining silver ions with the graphene oxide, then the silver-loaded graphene oxide is loaded onto the diatomite, sodium borohydride is used to reduce the silver ions into nano-silver, the graphene oxide is prevented from being reduced in the reduction process, so that conditions that oxygen-containing functional groups are reduced, theacting force of the oxygen-containing functional groups is weakened are avoided, the bacterium adsorption ability and antibacterial ability of the diatomite are increased, the safety problem of the nano-silver and the graphen