Decontamination of 137Cs,95Zr, 154Eu and 144Ce from aqueous solutions using polyacrylamide titanium tungstosilicate
Sara S. Mahrous, Muhammad S. Mansy, E. A. Abdel Galil
Abstract
Abstract Polyacrylamide titanium tungstosilicate (PAM/TiWSi) composite was synthesised using a sol–gel process and characterized via FT-IR, SEM, XRD, and TGA methods. The effects of several factors on the adsorption of Cs + , Eu 3+ , Ce 3+ and Zr 4+ have been studied, including contact duration, pH, temperature, and starting concentration. PAM/TiWSi sorption of Cs + , Eu 3+ , Ce 3+ and Zr 4+ was studied in terms of isotherms and kinetics. The Freundlich model was better linked with isotherm data than the Langmuir model. Cs + , Eu 3+ , Ce 3+ and Zr 4+ have maximum sorption capacities (Q max ) of 30.7, 26.6, 25,3 and 29.7 mg.g −1 , respectively. Furthermore, the sorption process was found based on pseudo-second-order.