Core–shell polymer nanocomposite based on free radical copolymerization of anthranilic acid and o-amino phenol in the presence of copper hexacyanoferrates nanoparticles and its adsorption properties

Abstract Core–shell polymer nanocomposite (CSNC) of copper hexacyanoferrate-copolymer anthranilic acid with o-aminophenol (CHCF-poly(AA-co-OAP)) was synthesized and used as ion exchanger for the sorption cesium ions from aqueous solution. The prepared by implantation CHCF nanoparticles into copolymer poly(AA-co-OAP) during polymerization process. surface morphology porous structure were investigated through transmission electron microscope (TEM), scanning (SEM) Brunauer–Emmett–Teller (BET). characterization carried out Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) Thermogravimetric (TGA). Which SEM TEM images confirmed nano-size CSNC. values adsorption capacity CSNC towards factors influence on removal solutions function in pH, metal concentration, temperature contact time. results illustrated that highest value Cs + 2.1 mmol g −1 at pH 11, 10 L 25 °C. Four modeling include Langmuir, Freundlich, Temkin Dubinin-Radushkevich (D-R) isotherms models studied. According to obtained data, Langmuir model considered most suitable model, which suggest uptake monolayer homogeneous. Also, kinetics data fitted well pseudo-second-order model. Thermodynamic parameters calculated 60 °C revealed endothermic, spontaneous, more favorable higher temperature. Up 92% desorption completed 2 M KCl.