Adsorption behavior and mechanism of isobutyl-BTP/SiO2-P adsorbent for Am(III) and Ln(III) in nitrate solution
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- 作者：Xinpeng Wang ; Shunyan Ning ; Qing Zou…
- 关键词：HLLW ; Minor actinides ; isobutyl ; BTP/SiO2 ; P adsorbent ; Separation ; Adsorption mechanism ; EXAFS
- 刊名：Journal of Radioanalytical and Nuclear Chemistry
- 出版年：2016
- 出版时间：March 2016
- 年：2016
- 卷：307
- 期：3
- 页码：2001-2008
- 全文大小：1,118 KB
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Shunyan Ning (1)
Qing Zou (1)
Ruiqin Liu (1)
Yuezhou Wei (1)
1. School of Nuclear Science and Engineering, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai, 200240, China - 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Nuclear Chemistry
Physical Chemistry
Nuclear Physics, Heavy Ions and Hadrons
Diagnostic Radiology
Inorganic Chemistry - 出版者：Akad茅miai Kiad贸, co-published with Springer Science+Business Media B.V., Formerly Kluwer Academic
- ISSN：1588-2780
文摘
Porous isobutyl-BTP/SiO2-P adorbent was prepared to separate MA(III) from HLLW. The adsorption behavior of isobutyl-BTP/SiO2-P toward 241Am(III), Y(III) and Ln(III) in 0.01 M HNO3–NaNO3 solution was studied. Isobutyl-BTP/SiO2-P showed high adsorption selectivity toward 241Am(III) over Y(III) and Ln(III) fission products. Adsorption kinetics of Dy(III) followed pseudo-second-order rate equation, and its adsorption isotherm matched the Langmuir isotherm equation well. Moreover, the adsorption product of Dy(III) on isobutyl-BTP/SiO2-P was studied using extended X-ray absorption fine structure (EAXFS) method and Dy(isobutyl-BTP/SiO2-P)3 3+ was supposed as the main adsorption species.