硅酸盐学报2005，Vol.33Issue(10)：1184-1188,5.
碱矿渣-黏土复合胶凝材料水化物粉体对铯离子的吸附
CESIUM ION ADSORPTION IN HYDRATED PASTE POWDER FROM ALKALI-ACTIVATED SLAG- CLAY COMPOSITE CEMENTITIOUS MATERIAL
摘要
Abstract
Adsorption properties of simulated radionuclide Cs+ in hydrated paste powder (HPP) from alkali-activated slag -clay composite cementitious material (AASCM) and the factors influencing them were studied and the adsorption property of HPP from AASCM was compared with those from portland cement (PC), aluminate cement (AC) and portland blast-furnace slag cement (PSC). The results reveal that, under the experimental conditions, the Cs+ adsorption capacity in HPP from AASCM increases and its distribution ratio decreases with the increase of initial Cs+ concentration. The adsorption equilibrium time shortens and the adsorption capacity and distribution ratio decrease with the increase of the temperatures. Within a certain range of initial Cs+ concentration, the adsorption isothermal curve of Cs+ in HPP from AASCM conforms to the Freundlich formula, and the adsorption process is exothermal. The adsorption capacity decreases with the decrease of pH values. Cesium ion adsorption in HPP from AASCM is more powerful than those from PC, AC or PSC.关键词
碱矿渣-黏土复合胶凝材料/水化物粉体/铯离子/吸附/影响因素Key words
alkali-activated slag- clay composite cementitious material/hydrated paste powder/cesium ion/adsorption/influence factor分类
资源环境引用本文复制引用
李玉香,傅依备,易发成,陈雅斓..碱矿渣-黏土复合胶凝材料水化物粉体对铯离子的吸附[J].硅酸盐学报,2005,33(10):1184-1188,5.基金项目
国家自然科学基金(10376028) （10376028）
中国工程物理研究院核物理与化学研究所基金资助项目. （）
