Sorption of uranium from waste effluent solutions by mesoporous carbon impregnated with trioctylamine

被引：4
|
作者：
Morsy A.M.A. [1 ]
Ali A.H. [1 ]
机构：
[1] Nuclear Materials Authority, P.O. Box 530, Maadi, Cairo
来源：
Radiochemistry | 2017年 / 59卷 / 2期
关键词：
adsorption; elution; mesoporous carbon; uranium;
D O I：
10.1134/S1066362217020072
中图分类号：
学科分类号：
摘要：
A new mesoporous adsorbent for uranium removal from waste effluents was prepared, characterized, and impregnated with trioctylamine. The adsorption efficiency was investigated as a function of pH, contact time, initial uranium concentration, competing ions, solid/liquid ratio, and temperature using batch sorption techniques. The maximum adsorption capacity was 21.9 mg g–1 at pH 5. The equilibrium data fit well with the Langmuir adsorption isotherm. Kinetic study showed that the process was fast and reached equilibrium within 60 min. The kinetic data fit well with the pseudo-second-order law. Thermodynamic data show that the process is spontaneous and exothermic. © 2017, Pleiades Publishing, Inc.
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收藏
页码：152 / 159
页数：7
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