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Abstract

Provided is a method and apparatus for producing silver nanoparticles in uniform shape and size using an electrolysis eco-friendly and in a simple way. The silver nanoparticles producing method includes the steps of: dissolving a reducing agent and an electrolyte into water in a reaction vessel to thereby prepare an electrolytic solution; placing a cathode rod that is made of a material different from that of silver nanoparticles to be obtained in the electrolytic solution so as to rotate in the reaction vessel, and placing at least one anode made of silver (Ag) at a certain distance from the cathode rod; ionizing the silver at the anode by an electrolysis in which direct-current (DC) power is applied between the cathode rod and the anode while rotating the cathode rod, so as to suppress silver crystallines on the surface of the cathode rod while stirring the electrolytic solution, to thereby form silver ions in the electrolytic solution; and reducing the silver ions by the reducing agent to thereby form the silver nanoparticles.

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