Highly selective removal of Ga3 ions from Al3 /Ga3 mixtures using graphite oxide

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F15%3A43899779" target="_blank" >RIV/60461373:22310/15:43899779 - isvavai.cz</a>
Result on the web
<a href="http://www.sciencedirect.com/science/article/pii/S0008622315002225" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0008622315002225</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.carbon.2015.03.025" target="_blank" >10.1016/j.carbon.2015.03.025</a>

Result language
angličtina
Original language name
Highly selective removal of Ga3 ions from Al3 /Ga3 mixtures using graphite oxide
Original language description
In this paper, we present a simple solution to a major technological issue, the extraction of gallium from bauxite ore and aluminium-gallium separation. Due to its extremely large surface area and oxygen functional groups, graphite oxide was used for thehighly selective sorption of Ga3+ from Al3+/Ga3+ mixtures. Graphite oxide prepared according to the Hummers method has various oxygen functionalities which form coordination bonds with metal ions. Sorption capacity and selectivity of graphite oxide towards Al3+, Ga3+ and their mixtures were investigated. Since the results of these experiments revealed much higher affinity of graphite oxide to Ga3+ ions, we tested the procedure on aluminium-gallium oxide prepared by Bayer process from real bauxite ore.In this case too, the results showed that Ga3+ accumulated on the graphite oxide surface. This suggests that high sorption selectivity can be used for the extraction of gallium on an industrial scale and, thus, as a rich source of gallium
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CA - Inorganic chemistry
OECD FORD branch
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Project
<a href="/en/project/GA15-09001S" target="_blank" >GA15-09001S: Chemical modifications of graphene based materials: Synthesis of graphane and halogengraphene</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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