Nano-Colloidal Silver Suspension: Fabrication and Characterization

Abstract

Silver is powerful natural antibiotic noble metal has been used for thousands of years with no harmful side effect since have being observed, today colloidal silver is rapidly gaining favor in the medical community and water treatment reflecting a kind of revival in the public health community sector. We made design of colloidal silver generator (CS)by using pulsar DC. power supply to get electrical arc discharge between two high purity silver rods., AFM, UV-Visible Spectrometry, OM, AAS, and electrical conductivity were applied to each sample. Results showed that CS prepared with (ADT) indicate good efficiency in producing colloidal silver with size ranging (40-560) nm. Variation in optical properties , color and electrical conductivity could be related to practical size distribution and to ionic/particle(Ag+/Ag0) silver concentration which in the rang (3-10)ppm.