论文部分内容阅读
研究了水合五氧化二锑在稀硝酸溶液中对锶的吸附,测定了不同温度下吸附等温热力学性能的变化,对微分吸附热及热力学函数进行了计算.结果表明,水合五氧化二锑对锶的吸附同时满足Freundlich和Langmuir等温吸附方程;Freundlich吸附等温式的曲线拟合能较好地描述不同温度下的试验数据.交换吸附过程是物理吸附与化学吸附共同作用的结果.“,”Adsorption of strontium onto hydrated antimony pentoxide in diluted nitric acid has been studied. Variations of adsorption isothermal thermodynamics characteristics were determined in different temperatures. Meanwhile, differential heat of adsorption and thermodynamic functions were calculated. Results showed that adsorption characteristics of strontium onto hydrated antimony pentoxide satisfy Freundlich and Langmuir isothermal adsorption equations. Curve correlations of Freundlich adsorption isothermal equation can describe experimental data rather satisfactorily. Exchange adsorption process results from interaction between physical adsorption and chemical adsorption.