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http://dx.doi.org/10.14346/JKOSOS.2021.36.1.80

A Study on the Adsorption Kinetics of 133Cs by Different Impregnations of Prussian Blue  

Choi, S.S. (Department of Environmental Engineering, Anyang University)
Lee, Y.J. (Department of Environmental Engineering, Anyang University)
Yun, K.J. (Department of Environmental Engineering, Anyang University)
Cho, Y.J. (Department of Environmental Engineering, Anyang University)
Lee, J.H. (Department of Environmental Engineering, Anyang University)
Lee, S.H. (Department of Environmental Engineering, Anyang University)
Publication Information
Journal of the Korean Society of Safety / v.36, no.1, 2021 , pp. 80-85 More about this Journal
Abstract
Radionuclides, particularly radioactive cesium (Cs), are a concern of human health in some nuclear power accidents. It could lead to a high level of intracellular accumulation due to its high radioactivity and long half-life. Therefore, it is imperative to develop a method to remove Cs from wastewater. Herein, we synthesized activated carbon fibers (ACFs) doped with Prussian blue (PB) via in situ methods. We classified samples by their preparation method as either physical (PB-ACF-A) or physicochemical (PB-ACF-B) syntheses for comparison. The PB-ACF-B sample showed a significant surface loss compared to PB-ACF-A but a better 133Cs adsorption capacity. All samples fit well to Langmuir isotherms and the values of qmax were directly correlated to the amount of PB on the surface of the ACFs. Adsorption characteristics were further confirmed by the calculated free energy, enthalpy, and entropy.
Keywords
cesium; adsorption; Prussian blue; physicochemical synthesis; activated carbon fiber;
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