Journal
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
Volume 303, Issue 1, Pages 161-170Publisher
SPRINGER
DOI: 10.1007/s10967-014-3352-2
Keywords
Adsorption; U(VI); Nanoparticles; Surface complexation modeling
Funding
- talent introduction project of Huangshan University [2013xkjq002]
- key research projects of provincial natural science foundation of department of Education of Anhui [KJ2010A312]
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The nano goethite and nano alumina were synthesized to investigate the effect of nanoscale size on adsorption-desorption of U(VI) from aqueous solution. It was determined that the site densities of nanoparticles are higher than alpha-alumina and goethite, whereas slight effect of carbonate on adsorption of U(VI) onto nanoparticles was observed. The maximum adsorption capacities of nano alumina and nano goethite were similar to 151 and 79 mg/g, respectively. The batch desorption indicated stronger binding affinity of U(VI) for nanoparticles as compared to non-nanoparticles, which were consistent with the results of surface complexation modeling assuming weak and strong sites for nanoparticles while weak sites for alpha-alumina and goethite.
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