Adsorption of 60Co and 154+152Eu Using Graft Copolymer of Starch-Polyacrylic Acid-Polyvinylsulfonic Acid
نویسندگان
چکیده
Abstract Starch-polyacrylic acid-polyvinylsulfonic acid (St-g-PAA-PVSA) graft copoymer was synthesized by gamma radiation as an initiator. The chemical structure, morphology, and thermal stability of the copolymer were investigated using FTIR, SEM, TGA. St-g-PAA-PVSA employed adsorbent for removal Co(II) Eu(III) radionuclides from their aqueous solutions batch adsorption method. Several experimental factors such pH, contact time, initial concentration adsorbate, temperature used to find best conditions radionuclides. pseudo-second order kinetic model better fits data Langmuir models had ability well describe equilibrium Thermodynamic parameters calculated suggested process endothermic while exothermic in case both systems spontaneous nature. Among examined desorbing agents, AlCl 3 HCl succeeded desorb most
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ژورنال
عنوان ژورنال: Journal of Polymers and The Environment
سال: 2022
ISSN: ['1566-2543', '1572-8919']
DOI: https://doi.org/10.1007/s10924-022-02446-w