Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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A Study on the Adsorption Kinetics of 133Cs by Different Impregnations of Prussian Blue

프러시안 블루 고정화에 따른 133Cs의 흡착거동 모델링

  • 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)
  • 최상선 (안양대학교 환경공학과) ;
  • 이우정 (안양대학교 환경공학과) ;
  • 윤경재 (안양대학교 환경공학과) ;
  • 조연지 (안양대학교 환경공학과) ;
  • 이준혁 (안양대학교 환경공학과) ;
  • 이순홍 (안양대학교 환경공학과)
  • Received : 2020.11.30
  • Accepted : 2021.01.21
  • Published : 2021.02.28
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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

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