Evaluation of Sr and Cs ions adsorption capacities with zeolitic materials synthesized from various mass ratios of NaOH to coal fly ash

The adsorptive aqueous removal of Sr2+ and Cs+ was performed using zeolitic materials prepared with fused coal fly ash (CFA) a hydrothermal method. influence the mass ratio NaOH to CFA 0.3-1.2 in synthesis material evaluated its crystallization properties by X-ray diffraction (XRD) analysis. synthesized at 0.6-1.2 could be identified have same location as XRD peaks Na-A zeolite 2θ = 7.18 - 34.18. They appeared which were crystalline particles cubic structure scanning electron microscopy (SEM). experimental adsorption data for estimated satisfactory pseudo-2nd-order kinetics Langmuir isotherm models. highest maximum capacities (qm) 147.6 mg/g 160.2 material. This demostrated superior crystallinity 0.6. Consequently, from through method used effectively solutions.