A magnetized fungal solid-phase extractor for the preconcentrations of uranium(VI) and thorium(IV) before their quantitation by ICP-OES.
Mikrochim Acta
; 186(6): 355, 2019 05 16.
Article
em En
| MEDLINE
| ID: mdl-31098920
ABSTRACT
The fungus Bovista plumbea immobilized on γ-Fe2O3 nanoparticles is shown to be a novel sorbent for magnetic solid-phase extractions of U(VI) and Th(IV). The biosorbent was characterized by FT-IR, SEM, and EDX. The effects of pH value, flow rate and volume of sample, amounts of biomass and support material, eluent type, foreign ions and repeated use of the sorbent on extraction efficiency were investigated. The sorption capacities are 41 and 44 mg g-1, respectively, for U(VI) and Th(IV). The results indicated that B. plumbea immobilized onto γ-Fe2O3 nanoparticles can be utilized as a novel material for the preconcentrations of U(VI) and Th(IV) in certified materials and in spiked tap, river and lake waters. Graphical abstract Schematic presentation of a method for preconcentrations of Th(IV) and U(VI) ions using γ-Fe2O3 nanoparticles loaded with the fungus Bovista plumbea.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Basidiomycota
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Tório
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Urânio
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Poluentes Ambientais
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Óxido Ferroso-Férrico
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Extração em Fase Sólida
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Nanopartículas de Magnetita
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article