Journal
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
Volume 306, Issue 2, Pages 365-375Publisher
SPRINGER
DOI: 10.1007/s10967-015-4215-1
Keywords
Polyacrylamidoxime; Amidoximated mesoporous carbon; In situ polymerization; Uranium; Adsorption
Funding
- National Natural Science Foundation of China [21301028, 21201033, 11475044, 41461070]
- National Basic Research Program of China [2014CB460604]
- Natural Science Foundation of Jiangxi Province [20132BAB203027]
- Jiangxi Provincial Department of Education [GJJ13452, GJJ14472]
- Jiangxi province science and technology support program [20141BBG70001]
- Jiangxi province science and technology innovation team program [20142BCB24006]
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The ability of amidoximated mesoporous carbon (AO/CMK-3) by in situ polymerizing acrylonitrile onto the surface of mesoporous carbon (CMK-3) and reducing with hydroxylamine hydrochloride had been explored for the removal and recovery of uranium from aqueous solutions. The monolayer maximum capacity of AO/CMK-3 was improved from 69.20 of CMK-3 to 238.7 mg/g at 298 K. Calculated thermodynamic parameters showed endothermic property of the adsorption process, while kinetic parameters indicated that the interaction followed pseudo-second kinetic model. Selective separation of U(VI) from effluent by AO/CMK-3 was achieved.
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