Kudzuvine root nano-silver composite hydrosol as well as preparation method and application thereof

The invention discloses a kudzuvine root nano-silver composite hydrosol and a preparation method and application thereof, and belongs to the technical field of metal nano-materials, the preparation method comprises the following steps: dispersing kudzuvine root powder in water, then heating and gelatinizing, then adjusting the pH value, then sequentially adding an alkyl glycoside solution, an AgNO3 solution and a NaCl solution, and finally carrying out microwave heating reaction to obtain the kudzuvine root nano-silver composite hydrosol. The kudzuvine root nano-silver composite hydrosol is obtained. The invention further discloses the kudzuvine root nano-silver composite hydrosol prepared through the preparation method and application of the kudzuvine root nano-silver composite hydrosol in promoting germination of polygonatum plant seeds, antibiotic detection and agricultural sterilization. The use of organic solvents, harmful reducing agents and dispersing agents is completely avoided, and the raw materials