Gamma-induced radiation polymerization of kaolin composite for sorption of lanthanum, europium and uranium ions from low-grade monazite leachate

Gamma radiation polymerization method was used for the modification of kaolin to produce (poly acrylamide-acrylic acid)-Kaolin (PAM-AA-K). Monazite ore is one of the main resources of uranium and lanthanide elements, therefore, this work focused on sorption of uranium, lanthanum and europium ions fr...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2018, Vol.315 (1), p.39-49
Main Authors: Metwally, Sayed S., Hassan, Reham S., El-Masry, Eman H., Borai, Emad H.
Format: Article
Language:English
Subjects:
Acrylamide
Acrylic acid
Amides
Chemistry
Chemistry and Materials Science
Clay
Diagnostic Radiology
Europium
Gamma rays
Hadrons
Heavy Ions
Inorganic Chemistry
Kaolin
Lanthanum
Leachates
Monazite
Nuclear Chemistry
Nuclear Physics
Phosphate minerals
Physical Chemistry
Polymerization
Radiation (Physics)
Rare earth metal compounds
Sorption
Uranium
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Summary:Gamma radiation polymerization method was used for the modification of kaolin to produce (poly acrylamide-acrylic acid)-Kaolin (PAM-AA-K). Monazite ore is one of the main resources of uranium and lanthanide elements, therefore, this work focused on sorption of uranium, lanthanum and europium ions from low grade monazite leachate. The removal percent for Eu 3+ , La 3+ and UO 2 2+ are 94.6, 91.6 and 73.4%, respectively. Monolayer capacity of Eu 3+ , La 3+ and UO 2 2+ were found to be 54.64, 45.87 and 37.59 mg/g, respectively. The sorption mechanism of lanthanum and europium ions on PAM-AA-K composite mainly takes place as Ln(OH) 2+ , and for uranium as uranyl ion, UO 2 2+ .
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-017-5638-7