Journal
APPLIED CLAY SCIENCE
Volume 47, Issue 3-4, Pages 448-451Publisher
ELSEVIER
DOI: 10.1016/j.clay.2009.11.003
Keywords
Uranium (VI); Kaolin; Acid-activation; Calcination; Adsorption
Funding
- Natural Science Foundation of China [40861017]
- Natural Science Foundation of Jiangxi, China [2007GZH0477]
- Science and Technology Foundation of the Education Department of JiangXi Province [GJJ09261, GJJ09258]
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Kaolin was modified by calcination followed by acid-activation. This type of modification strongly increased the adsorption of uranium (VI) on kaolin. The equilibrium data agreed very well with the Langmuir model. Kinetic studies showed that the adsorption followed the pseudo-second-order model. Thermodynamic parameters showed the endothermic heat of adsorption and the feasibility of the process. (C) 2009 Elsevier B.V. All rights reserved.
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