▎ 摘　　要

NOVELTY - Method of preparing graphene oxide-based fungicides or bactericides based graphene oxide synthesized from graphite and modified by Hummers method involves adding graphene oxide synthesized from graphite with a particle size of 400 nm-400 mu m modified by Hummers method to distilled water, to achieve a concentration of 0.001-5% graphene oxide and/or adding 0.01-2% dodecylbenzene sulfonic acid (DBSA), sodium soap, Triton X-100 (RTM: t-octyl phenoxy polyethoxy ethanol) surfactant, and/or mulanu citro (sic), subjecting the mixture to mechanical mixing and/or sonication in an ultrasonic homogenizer for 10-60 minutes and packaging product. USE - The method is useful for preparing graphene oxide-based fungicides or bactericides, which are used in agriculture and horticulture to eliminate pathogens.