Halah H. Rashed
Abstract
In this work, Silvernanoparticles prepared by arc discharge method in deionized water byapplying stablized direct current between two silver rods which are submerged in deionized waterat ...
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In this work, Silvernanoparticles prepared by arc discharge method in deionized water byapplying stablized direct current between two silver rods which are submerged in deionized waterat room temperature without any heat exchanger,vacuum equipment and gas handling equipment. During electrical discharge the temperature between electrodes can reach several thousand Celsius degrees. This leads to etch of silver electrodes in deionized water, silver vapor condensed in water creats a stable silver aqueous suspension. The silver nanoparticles were characterized by UV-Visiblephotometer, X-Ray Diffraction (XRD), and Atomic Force MicroscopeAFM. The optical absorption measurement showsthat the spectrum exhibits a Plasmon absorption band at ~ 400 nm which is the characteristic of silver nanoparticles. X-Ray Diffraction of the resulting NPs indicated that the particles had a crystalline structureand the average particle size determined from AFM, is about 78.75 nm.
