[en] In affi liation section, line 3, “Bisha University” should be replaced by “University of Bisha.”

[en] Adsorption of cesium (Cs⁺), strontium (Sr²⁺), and europium (Eu³⁺) onto stannic silico vanadate as ion exchange material, and the effects of experimental conditions on adsorption were considered. The material were characterized by X-ray diffractometer system (XRD), scanning electron microscopy (SEM), X-ray fluorescence spectrometry (XRF), infrared (IR), and thermal analysis (TGA and DTA). The selectivity coefficients for different cations determined by mixed solution method were found to be less than unity. The thermodynamic parameters such as ΔG*, ΔS*, and ΔH* have also been calculated for the adsorption of Cs⁺, Sr²⁺, and Eu³⁺ onto stanic silicovanadate, showing that the overall adsorption process is spontaneous and endothermic.

[en] A novel PAn/Tafla nanocomposite was fabricated by the polymerization of aniline in a suspension of nano-sized Tafla using ployvinyl alcohol as a surfactant. The physicochemical characteristics including pH titration, chemical stability, and thermal stability of nanocomposite were examined. Sorption behavior of PAn/Tafla nanocomposite towards Fe(III), U(VI), Th(IV), La(III), and Ce(III) from aqueous solutions has been studied. This study revealed that the new nanocomposite is highly selective for Fe(III) ions rather than U(VI), Th(IV), La(III), and Ce(III) ions. The breakthrough capacity obtained from column study was equal to 190.0 mg/g. The new nanocomposite was applied successfully for purification of lanthanides leachate liquor.