Preparation, adsorption and recognition properties of uranyl ion-imprinted marine facultative fungus mainly modified by phytic acid and tetraethyl silicate
Uranyl ion-imprinted polymers (U(VI)-IIPs) were successfully prepared by combining phytic acid as the functional monomer, uranyl ion (UO 2 2+ ) as the template, and tetraethyl silicate (TEOS) as the cross-linker with the marine facultative fungus Fusarium sp. #ZZF51 addicted to U (VI) mycelium throu...
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Veröffentlicht in: | Journal of radioanalytical and nuclear chemistry 2018-08, Vol.317 (2), p.701-714 |
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Hauptverfasser: | , , , , , , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Uranyl ion-imprinted polymers (U(VI)-IIPs) were successfully prepared by combining phytic acid as the functional monomer, uranyl ion (UO
2
2+
) as the template, and tetraethyl silicate (TEOS) as the cross-linker with the marine facultative fungus
Fusarium
sp. #ZZF51 addicted to U (VI) mycelium through the ion-imprinted sol–gel method. Single-factor experiments were performed to optimize the preparation conditions and the prepared materials were better characterized with FTIR, SEM and BET meter. The optimum adsorption conditions were explored by single-factor experiments and BBD response surface method in detail. The adsorption–desorption recycling and adsorption selectivity experiments revealed that U(VI)-IIPs had a good stability and selectivity. The U (VI) adsorption process of U(VI)-IIPs was better described by the pseudo-second order kinetic equation and Langmuir isotherm model. |
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ISSN: | 0236-5731 1588-2780 |
DOI: | 10.1007/s10967-018-5937-7 |