الفهرس 
Sources Radioactive wasteOnly 14 pages are availabe for public view
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Abstract
The main target in this study is treatment of simulated samples of low
level radioactive liquid waste Cs+ and Co2+. For this purpose (Gum Acacia/
(PolyAcrylamid)) (GA/PAAm) hydrogel was prepared using gamma
irradiation technique. The factors controlling the preparation conditions were
investigated such as gamma radiation dose, AAm content and Initial Feed
Concentration. Graphene (GR) sheets were successfully prepared via solvent
interface trapping. Intensive characterization of GR was performed using
Raman spectroscopy, X-ray diffraction (XRD), field emission scanning
electron microscope (FESEM), high-resolution transmission electron
microscopy (HRTEM), and UV–Vis spectrometer. GR was trapped in gum
acacia (GA) and polyacrylamide (PAAm) to form GA/PAAm/GR
nanocomposite. As well SiO2 was also used as corroborating nanoparticles to
form GA/PAAm/ SiO2 nanocomposite. In situ preparation of magnetic
nanoparticles in the prepared hydrogel and the nanocomposites was
performed. characterization the prepared hydrogel and its nanocomposites
was done using Raman spectroscopy, (FT-IR), (FESEM), (HRTEM), (XRD),
(TGA), mechanical (nanoindentation) and magnetic properties. The swelling
behavior was studied as a function of different parameters included pH was
performed. The factors controlling the adsorption process were investigated
such as different nanocomposite of hydrogel, pH, contact time, initial metal
ion concentration, adsorbent dose, competing ions, temperature and
desorption study.
Keywords: Graphene, Gum acacia, Magnetic Nano Composite,
Nanocomposite, Treatment, Radioactive waste, cesium and cobalt.