化学
吸附剂
吸附
吸附
扩散
离子交换
动力学
铯
水溶液
粒径
微球
粒子(生态学)
三元运算
核化学
无机化学
离子
化学工程
物理化学
有机化学
工程类
地质学
物理
海洋学
热力学
程序设计语言
量子力学
计算机科学
作者
H. Tel,Yüksel Altaş,Faruk Gür,Ahmet Lütfü Uğur
标识
DOI:10.1524/ract.2010.1707
摘要
ZrO2 and ZrO2-SiO2-TiO2 (with 1:1:1 mol ratio) microspheres have been prepared by the sol-gel method and characterized to study the sorption kinetics of cesium. The effect of pH on the adsorption capacity was determined for both type sorbents and the maximum adsorption percentage of cesium was observed at pH 10. To elucidate the kinetics of the ion-exchange reaction on pure and ternary oxide microspheres, the isotopic exchange rates of cesium ions between both types of sorbent microspheres and aqueous solution were measured radiochemically and compared with each other. The diffusion coefficients of Cs+ ion for ZrO2 and ZrO2-SiO2-TiO2 sorbent microspheres at pH 10 were calculated as 3.648×10−8 m2 s−1 and 6.383×10−8 m2 s−1, respectively, under particle diffusion controlled conditions.
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