Journal
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
Volume 323, Issue 1, Pages 515-537Publisher
SPRINGER
DOI: 10.1007/s10967-019-06953-4
Keywords
Adsorption; Manganese ferrite; Magnetic nanosorbent; U(VI); Th(IV)
Funding
- School of Graduate Studies at The University of Jordan
- German Academic Exchange Service
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The adsorption behavior of U(VI) and Th(IV) metal ions by MnFe2O4 NPs was studied as a function of pH, mass of sorbent, contact time, and temperature. Kinetic data was fitted to Pseudo second-order model and q(m) reached maximum value at pH 3 for Th(IV) and at pH 3.0-5.0 for U(VI) after 3 h. The Langmuir, Freundlich, and Dubinin-Raduskevich isotherm equations were applied to the adsorption data and the proper constants were derived. Adsorption isotherms were studied at different temperature to find Delta H degrees, Delta G degrees, and Delta S degrees. Recovery was carried out by using 0.10 M of HNO3, HCl, EDTA, Na2CO3 and NaCl.
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