Journal
CHEMICAL ENGINEERING JOURNAL
Volume 241, Issue -, Pages 228-234Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2013.12.035
Keywords
Uranium; CoFe2O4; Adsorption; Kinetics; Thermodynamics
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Funding
- National Natural Science Foundation of China [21353003]
- Special Innovation Talents of Harbin Science and Technology [2013RFQXJ145]
- Fundamental Research Funds of the Central University (HEUCFZ)
- Natural Science Foundation of Heilongjiang Province [B201316]
- Program of International S&T Cooperation special project [2013DFA50480]
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Cobalt ferrite hollow spheres were prepared by a simple solvothermal method. The obtained CoFe2O4 was applied as magnetic adsorbent for the extraction of uranium(VI) ions from aqueous solutions. The maximum adsorption capacity was observed at pH 6.00. Maximum removal of 96.8% was observed for an initial concentration of 50 mg/L at pH 6.00 and an adsorbent dose of 0.05 g, displaying a high efficiency for the removal of uranium(VI) from aqueous solution. Equilibrium was achieved in approximately 180 min. The results indicate that CoFe2O4 has potential as an adsorbent for sorption uranium(VI), using a simple, fast separation method for removal of uranium(VI) ions from aqueous solution. (C) 2013 Elsevier B.V. All rights reserved.
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