Selectivity of Th(IV) adsorption as compared to U(VI), La(III), Ce(III), Sm(III) and Gd(III) using mesoporous Al2O3
Herein, we have used mesoporous Al 2 O 3 as adsorbent and compared its efficacy with chromatographic neutral alumina for the selective adsorption and separation of Th(IV). The metal ions form complex with thorin and the Th-thorin complex gets selectively adsorbed on the mesoporous alumina at pH 1 un...
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Published in | Separation science and technology Vol. 56; no. 14; pp. 2369 - 2384 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Abingdon
Taylor & Francis
22.09.2021
Taylor & Francis Ltd |
Subjects | |
Online Access | Get full text |
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Summary: | Herein, we have used mesoporous Al
2
O
3
as adsorbent and compared its efficacy with chromatographic neutral alumina for the selective adsorption and separation of Th(IV). The metal ions form complex with thorin and the Th-thorin complex gets selectively adsorbed on the mesoporous alumina at pH 1 unlike other metal ions. The R
2
value of Langmuir isotherm model was found to be the highest and closer to 1. The adsorption capacities at 283, 303 and 328 K were found to be 50, 51.02 and 51.81 µmolg
−1
respectively. The adsorbed thorium was desorbed from the adsorber upon treatment with trisodium citrate. |
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ISSN: | 0149-6395 1520-5754 |
DOI: | 10.1080/01496395.2020.1828461 |