Abstract
We demonstrate operation of an aqueous electrochemical cell with an atmospheric-pressure contact non-equilibrium low-temperature plasma (CNP) anode and a solid metal cathode for the rapid production of colloidal metal nanoparticles. CNP was utilized to synthesize Ag nanoparticles (AgNPs). The synthesized AgNPs were characterized by using UV–vis spectroscopy, dynamic light scattering, transmission electron microscope. The effect of concentration of Ag+ and type of stabilizing agent on the production of silver nanoparticles has been studied. To optimize the synthesis process the main characteristics of the discharge plasma were studied using UV-spectroscopy by varying the discharge current and solution composition. The AgNPs solution showed catalytic activity for the complete degradation of 4-nitrophenol (4-NPh).
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