Removal of cesium and strontium using natural attapulgite: evaluation of adsorption isotherm and thermodynamic data
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- 作者：A. Kilincarslan Kaygun ; M. Eral…
- 关键词：Adsorption ; Cesium ; Strontium ; Aqueous media ; Adsorption isotherms ; Thermodynamic
- 刊名：Journal of Radioanalytical and Nuclear Chemistry
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：311
- 期：2
- 页码：1459-1464
- 全文大小：
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Nuclear Chemistry; Physical Chemistry; Nuclear Physics, Heavy Ions, Hadrons; Diagnostic Radiology; Inorganic Chemistry;
- 出版者：Springer Netherlands
- ISSN：1588-2780
- 卷排序：311
文摘
Natural attapulgite was used for removal of cesium and strontium ions from aqueous media by using a batch technique. It was found that cesium and strontium exhibits a physical adsorption mechanism onto the natural attapulgite with a good adsorption efficiency. The adsorption thermodynamic parameters of cesium and strontium referred to an exothermic nature for strontium ion and an endothermic nature for cesium ion and spontaneity of the adsorption process. Dubinin–Radushkevich isotherm model were the best fitted the adsorption equilibrium data of cesium and strontium ions. Ea values showed that the interaction among cesium and strontium ions and the adsorbent are a physical adsorption.