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프러시안 블루 고정화에 따른 <sup>133</sup>Cs의 흡착거동 모델링
최상선,이우정,윤경재,조연지,이준혁,이순홍,Choi, S.S.,Lee, Y.J.,Yun, K.J.,Cho, Y.J.,Lee, J.H.,Lee, S.H. 한국안전학회 2021 한국안전학회지 Vol.36 No.1
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 <sup>133</sup>Cs 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.
유용문(Y. M. Ryu),윤의박(E. P. Yoon),윤여성(Y. S. Yoon),이순홍(S. H. Lee) 한국자동차공학회 1998 한국 자동차공학회논문집 Vol.6 No.4
In order to investigate the relationship between the stiffness and structure of the automotive roof panels, two kinds of glass fiber reinforced plastic(GFRP) roof panels without and with insert material were fabricated by resin transfer molding(RTM) method. The stiffness test was performed at the same condition as it of actual driving. The structural design and material selection for improving the recyclability of GFRP roof panels were also covered.