Fabrication of Cesium(I) Adsorbents from Steel-making Slags

Fabrication of novel adsorbents which adsorbed cesium (I) were investigated based on modification of steel-making slags. Treatment of the steel-making slags with a sodium hydroxide solution containing sodium metasilicate developed adsorption ability of cesium (I) to the slags. Effects of treatment conditions such as concentrations of sodium metasilicate and sodium hydroxide on the adsorption abilities of the resulting adsorbents were investigated. Characterization of the adsorbents was also performed with XRD, XRF and SEM observation. Adsorption of cesium (I) was caused by deposited layers resulting from reaction of metasilicate with the slags.