Synthesis of silver nanoparticles

Abstract

The article presents information about plant protection products, methods for the synthesis of silver nanoparticles, stabilization of the resulting solutions, and the morphology of the resulting colloidal solution. The chemical synthesis of silver nanoparticles was carried out in the presence of reducing agents and stabilizers. Silver nitrate was used as a source of silver, and glucose, sodium citrate and hydrazine were used as reducing agents; water-soluble polymers were used as stabilizers - polyvinylprolidone, polyvinyl alcohol and polyvinyl acetate. Under optimal conditions, stable silver nanoparticles with different color solutions were obtained. An increase in the color intensity of solutions is associated with the dispersion of silver nanoparticles. The shape and size of silver nanoparticles are directly dependent on the concentration of solutions, the nature of stabilizers, reducing agents and temperature. By controlling the reaction conditions, it is possible to synthesize silver nanoparticles of various shapes and sizes. The relationship between the shapes and sizes of nanoparticles, the concentration of silver salt, temperature and the nature of the stabilizer is indicated. The resulting nanosilver is recommended for use in agriculture.