Journal
RADIATION PHYSICS AND CHEMISTRY
Volume 206, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.radphyschem.2023.110774
Keywords
Radioiodine; Polycarbonate-grafted-poly (glycidyl; methacrylate); Ion exchange chromatography; -radiation induced grafting
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Glycidyl Methacrylate (GMA) was grafted onto Polycarbonate (PC) using a radiation-induced grafting technique, followed by amination and quaternization to synthesize Q[A(PC-g-PGMA)]. The effects of total concentration, monomer concentration, and absorbed dosage on the degree of grafting (DG) were studied. The structure of the resultant Q[A(PC-g-PGMA)] was characterized using FTIR, SEM, and TGA. Q[A(PC-g-PGMA)] was used in a batch procedure to investigate the sorption efficiency of I-131 in varied concentrations of HCl and/or HNO3 solutions. The thermodynamic parameters indicated that the sorption process of I-131 was endothermic and spontaneous.
To synthesize Q[A(PC-g-PGMA), Glycidyl Methacrylate (GMA) was grafted onto Polycarbonate (PC) using a radiation-induced grafting technique, followed by amination and quaternization. It was studied how total concentration, monomer concentration, and absorbed dosage affect the degree of grafting (DG). FTIR, SEM, and TGA were used to describe the structure of the resultant Q[A(PC-g-PGMA)]. Q[A(PC-g-PGMA)] was utilized in a batch procedure to investigate the sorption efficiency of I-131 in varied concentrations of HCl and/or HNO3 solutions. The results showed that 0.01 M HNO3 is the optimum medium for high retention of I-131, with a maximum capacity of 187 mg/g. The kinetic and isotherm data of I-131 adsorption revealed that it followed the Pseudo-secondorder and Freundlich models, respectively. The sorption process of I-131 was discovered to be endothermic and spontaneous after studying thermodynamic parameters such as enthalpy change (Delta H degrees), free energy change (Delta G degrees) and entropy change (Delta S degrees).
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