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Separation of thorium ions from wolframite and scandium concentrates using graphene oxide
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SYSNO ASEP 0450277 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Separation of thorium ions from wolframite and scandium concentrates using graphene oxide Author(s) Jankovský, O. (CZ)
Sedmidubský, D. (CZ)
Šimek, P. (CZ)
Klimová, K. (CZ)
Bouša, D. (CZ)
Boothroyd, C. (DE)
Macková, Anna (UJF-V) RID, ORCID, SAI
Sofer, Z. (CZ)Number of authors 8 Source Title Physical Chemistry Chemical Physics. - : Royal Society of Chemistry - ISSN 1463-9076
Roč. 17, č. 38 (2015), s. 25272-25277Number of pages 6 s. Publication form Print - P Language eng - English Country GB - United Kingdom Keywords graphite oxide ; reduction ; oxygen Subject RIV BG - Nuclear, Atomic and Molecular Physics, Colliders R&D Projects GA15-09001S GA ČR - Czech Science Foundation (CSF) GBP108/12/G108 GA ČR - Czech Science Foundation (CSF) LM2011019 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UJF-V - RVO:61389005 UT WOS 000361697400077 EID SCOPUS 84942474041 DOI 10.1039/c5cp04384k Annotation The separation of rare metals from the ores and commercially available compounds is an important issue due to the need of their high purity in advanced materials and devices. Important examples of two highly important elements that co-exist in the ores are scandium and thorium. Scandium containing ores and consequently also commercially available scandium compounds often contain traces of thorium which is very difficult to separate. We used graphene oxide for the selective sorption of thorium ions from scandium and thorium mixtures originating from the mined ores as well as from commercially available scandium salts. Our results showed that graphene oxide has an extreme affinity towards thorium ions. After the sorption process the graphene oxide contained over 20 wt% of thorium while the amount of scandium sorbed on GO was very low. This phenomenon of high sorption selectivity of graphene oxide can be applied in industry for the purification of various chemicals containing scandium and for separation of thorium containing mixtures. Alternatively, this methodology can be used for preconcentration of thorium from low-grade ores and its further use in the new generation of nuclear reactors. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2016
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