Removal of cesium ions from aqueous solution by polyaniline: A radiotracer study
Removal of cesium ions from aqueous solution by polyaniline: A radiotracer study
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DOI：
10.1007/s10965-004-1114-5
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发表时间：
2005-02-01
影响因子：
2.8
通讯作者：
Dubey, SS
中科院分区：
文献类型：
--
作者：
Gupta, RK;Dubey, SS
本文采用放射性示踪技术研究了聚苯胺对铯离子的吸收行为。参数研究表明，随着吸附质浓度（10（-8）~ 10（-3）mol dm（-3））和温度（303 ~ 333 K）的升高，铯离子的吸附增强。从热力学和动力学数据推断，铯离子的吸附遵循一级速率定律，遵循Freundlich等温式，且为吸热性质。还通过将聚苯胺暴露于与1.72 Gyh（-1）的γ剂量相关的11.1 GBq（Ra-Be）源来研究聚苯胺的辐射稳定性。
The present work deals with the study of uptake behavior of cesium ions by polyaniline applying a radiotracer technique. The parametric study reveals that the increase of adsorbate concentration (10(-8) to 10(-3) mol dm(-3)) and temperature (303 to 333 K) enhances the removal of the ions and from thermal and kinetic data it is inferred that the adsorption of cesium ions follows first order rate law, obeys Freundlich isotherm and is endothermic in nature. The radiation stability of polyanifine was also investigated by exposing it to a 11.1 GBq (Ra-Be) source associated with gamma dose of 1.72 Gyh(-1).