Synthesis of bimetallic Cu-Ag nanoparticles prepared by DC high voltage electrochemical method

Copper-silver bimetallic nanoparticles (NPs) can be prepared by electrochemical high voltage DC using silver and copper anodes in double distilled water. Bimetallic nano formation of Cu-Ag-NPs were performed by dissolving the Ag anode in anodic dissolved Cu solution or in the Cu NPs solution. The dependence of the DC current and the amount of electricity on the time show the reaction with a 200 mm electrode gap with formation of electronic plasma. The product obtained at 5 kV had the same characteristics as AgNPs with UV-Vis spectrum: 420 nm, particle size distribution was mainly in small areas of 100 nm, zeta potential had value up to -80.6 mV as well as the good ability to kill bacteria. (author)