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양재환,윤주영,홍석민,이주호,조영준 한국공업화학회 2019 Journal of Industrial and Engineering Chemistry Vol.77 No.-
This study is thefirst to report the chemical adsorption of Cs from CsI by using aluminosilicatefiltersdeveloped in our laboratory. To examine the influence of oxygen on the Cs-trapping efficiency, CsI wasvolatilized and carried by mixed gases composed of 4% H2/Ar base gas and different concentrations ofoxygen. Cesium capture was dramatically improved by the conversion of CsI to CsOH, which more readilyformCsAlSiO4, in the presence of water vapor that forms if small amounts of oxygen are added to the 4%H2/Ar base gas.This proposed reaction mechanism was supported by thermodynamic calculations.