TODGA-C树脂对硝酸介质中Eu（III）的吸附性能研究

IF 1.5 3区化学 Q3 CHEMISTRY, ANALYTICAL Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2024-10-04 DOI:10.1007/s10967-024-09725-x

Xuebin Wang, Guoshu Mao, Shengjie Yu, Zhihai Fu, Yuanzhen Yue, Shengdong Zhang, Youqian Ding, Kun Huang, Xian Zhang, Xiaoyi Sun

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摘要

针对放射性废物处理的需要，研究了toga - c树脂在HNO3中对Eu3+的静态和动态吸附。结果表明，toga - c对Eu3+的吸附符合准二级动力学模型。在4 mol/L HNO3条件下，TODGA-C对Eu3+的吸附分布系数达到105 mL/g。在HNO3浓度为3.5 mol/L、流速为3.6 mL/min、Eu3+初始浓度为10 mg/L的条件下，Thomas速率常数为1.2 mL/(mg·min)，动态饱和容量为15 mg/mL。

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Study on the adsorption performance of Eu(III) in nitric acid medium by TODGA-C resin

Responding to the need for radioactive waste disposal, the static and dynamic adsorption of Eu³⁺ on TODGA-C resin in HNO₃ was investigated. The findings indicated that the adsorption of Eu³⁺ on TODGA-C adheres to the quasi-second-order kinetic model. Additionally, the distribution coefficient for Eu³⁺ adsorption on TODGA-C reaches 10⁵ mL/g in 4 mol/L HNO₃. Under the conditions of 3.5 mol/L HNO₃, a flow rate of 3.6 mL/min, and an initial Eu³⁺ concentration of 10 mg/L, the Thomas rate constant was found to be 1.2 mL/(mg·min), with a dynamic saturation capacity of 15 mg/mL.

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来源期刊

Journal of Radioanalytical and Nuclear Chemistry 化学-分析化学

CiteScore

2.80

自引率

18.80%

发文量

504

审稿时长

2.2 months

期刊介绍： An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.