| Abstrakt: |
Alginate–acrylic acid–vinylsulfonic acid/functionalized multiwalled carbon nanotubes (Alg–AA–VSA/f-MWCNTs) composite was prepared by gamma radiation as initiator the graft copolymerization of VSA and AA on Alg onto f-MWCNTs surface matching to template polymerization technique. The optimum synthesis conditions of the nanocomposite are 2.5 wt% Alg, 40 wt% comonomer, 0.5 wt% f-MWCNTs, 0.8 wt% NMBA, AA/VSA monomer composition of 70/30 wt%, and 25 kGy absorbed dose. The structure of the nanocomposite was analyzed using FTIR, TGA, SEM, and XRD. The adsorption of Co(II) radionuclide was applied by batch technique. The kinetic, isotherm, and thermodynamic data of the adsorption of Co(II) deduced that the adsorption followed the second-order model and Langmuir model and became favorable at a low temperature, respectively. Maximum capacity of Co(II) adsorption was 306.399 mg/g. [ABSTRACT FROM AUTHOR] |
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