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Issue 13, 2012
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Extraction of radioactive cesium using innovative functionalized porous materials

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Abstract

A new approach to an efficient and selective extraction of Cs+ ions from water, sea water enriched with Cs+ and a radioactive solution simulating the effluents of the Fukushima reactors (137Cs, 29 kBq L−1) was developed by using porous silica- or glass-based nanocomposites containing Prussian blue type nanoparticles, Co2+/[Fe(CN)6]3−, with sizes below 10 nm. A particular emphasis is given on the kinetics of cesium sorption fitted by using the classical reaction order model as well as a diffusion model in order to better understand the sorption mechanism. Compared to the amount of Co2+/[Fe(CN)6]3− nanoparticles, the sorption capacities of studied nanocomposites are more than three times higher than the ones observed for the respective bulk materials. These nanocomposites present a high selectivity to Cs+ and extract it in trace amounts.

Graphical abstract: Extraction of radioactive cesium using innovative functionalized porous materials

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Publication details

The article was received on 03 Jan 2012, accepted on 02 Apr 2012 and first published on 22 May 2012


Article type: Paper
DOI: 10.1039/C2RA00012A
Citation: RSC Adv., 2012,2, 5707-5716
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    Extraction of radioactive cesium using innovative functionalized porous materials

    C. Delchet, A. Tokarev, X. Dumail, G. Toquer, Y. Barré, Y. Guari, C. Guerin, J. Larionova and A. Grandjean, RSC Adv., 2012, 2, 5707
    DOI: 10.1039/C2RA00012A

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