The present work aimed to study the performance of bentonite purified (BMP-Na) and supported (α-Fe₂O₃/BMB) in the adsorption of ⁶⁰Co from radioactive solution. The adsorbents were characterized by XRD, Mossbauer, SEM, EDS and γ-Spectrometry. Kinetics and equilibrium models were evaluated for the adsorption process including Boyd's film-diffusion models. The experimental results showed that the adsorption reaction was adjustable to the pseudo-second order and controlled by the intra-particle diffusion mechanism. The experimental modeling data and the equilibrium study of the adsorption followed the Langmuir model. The values of the thermodynamic parameters have shown that the adsorption process was endothermic, spontaneous and favored at high temperatures.

本工作的目的是研究膨润土纯化（BMP-NA）和支持的性能（的α-Fe ₂ ö ₃ / BMB）中的吸附⁶⁰ Co从放射性溶液。通过XRD，Mossbauer，SEM，EDS和γ-光谱对吸附剂进行了表征。动力学和平衡模型的吸附过程进行了评估，包括博伊德的膜扩散模型。实验结果表明，吸附反应可调节至伪二级，并受颗粒内扩散机制控制。实验模型数据和吸附的平衡研究遵循Langmuir模型。热力学参数的值表明，吸附过程是吸热的，自发的并且在高温下是有利的。