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Gamma Radiation Synthesis and Characterization of Polyvinyl Alcohol/ Silver Nano Composites Film

How to cite

Dr. Mohammed Ahmed Ali Omar,Dr. Mohamad Elfadil Mohamed Gar Elnabi,Saion . E ,2011, Gamma Radiation Synthesis and Characterization of Polyvinyl Alcohol/ Silver Nano Composites Film,Journal of Science and Technology,12 (1) ,pp:104-110

Authors:
By Dr. Mohammed Ahmed Ali Omar,Dr. Mohamad Elfadil Mohamed Gar Elnabi,Saion . E ,
Year:
2011
Keywords
Irradiation of Polymer Nanocomposites,Charcterization of Nancomposites film,Gamma radiation synthesization
Abstract
For the wider interested applications of polymer hybridized metal nanoparticles composites, poly vinyl-alcohol /silver nanoparticles composites in a form of a film was prepared by in situ irradiation doping technique up to 50 kGy. The effect of radiation upon the composites resulted in reducing the silver ions into black metallic silver, so the general film color changed from white to golden-yellow then black color at 50 kGy. The UV-visible spectroscopy revealed an absorbance band peaking at 425 nm which was increased exponentially with dose increment. The study of UV-spectrogram revealed that the maximum absorbance Amax increased following the particles radius. Scanning electron Microscopy (SEM) revealed shiny nanoparticles of silver cored in Polyvinyl-alcohol PVA with homogeneous distribution and having an average size of 30 nm as well as the XRD spectrum that shows cubic center face of silver nanoparticles in the film and a crystalline peak for PVA reduced by radiation to amorphous phase.
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