Adsorption Mechanism Study of Radionuclide 60Co by Purified and α-Fe2O3-Supported Bentonite from Radioactive Solution

The present work aimed to study the performance of bentonite purified (BMP-Na) and supported (α-Fe 2 O 3 /BMB) in the adsorption of 60 Co from radioactive solution. The adsorbents were characterized by XRD, Mossbauer, SEM, EDS and γ-Spectrometry. Kinetics and equilibrium models were evaluated for th...

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Bibliographic Details
Published in:Arabian journal for science and engineering (2011) 2022, Vol.47 (5), p.5629-5645
Main Authors: Achour, Souad, Amokrane, Samira, Chegrouche, Salah, Guedioura, Bouzid, Nibou, Djamel
Format: Article
Language:English
Subjects:
Adsorption
Bentonite
Endothermic reactions
Engineering
High temperature
Humanities and Social Sciences
multidisciplinary
Particle diffusion
Radioisotopes
Research Article-Chemical Engineering
Science
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Summary:The present work aimed to study the performance of bentonite purified (BMP-Na) and supported (α-Fe 2 O 3 /BMB) in the adsorption of 60 Co 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.
ISSN:2193-567X
1319-8025
2191-4281
DOI:10.1007/s13369-021-05570-2