Adsorption of actinides by chelating agents containing benzene rings, fixed on charcoal (Articolo in rivista)

Type
Label
  • Adsorption of actinides by chelating agents containing benzene rings, fixed on charcoal (Articolo in rivista) (literal)
Anno
  • 2002-01-01T00:00:00+01:00 (literal)
Alternative label
  • Valentini Ganzerli M.T. 1, Crespi Caramella V. 1, Maggi L. 2 (2002)
    Adsorption of actinides by chelating agents containing benzene rings, fixed on charcoal
    in Journal of radioanalytical and nuclear chemistry (Print)
    (literal)
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  • Valentini Ganzerli M.T. 1, Crespi Caramella V. 1, Maggi L. 2 (literal)
Pagina inizio
  • 3 (literal)
Pagina fine
  • 7 (literal)
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  • 254,1 (literal)
Rivista
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  • We studied the preparation of some specific adsorbers capable of isolating and concentrating actinides. Bases of the 8-hydroxyqninoline family, diphosphineamine and tribenzylamine, salted by benzohydroxamic, benzylic or phthalic acid, are able to complex actinides in different oxidation states. As a result of the presence of the benzene rings, all the compounds are easily incorporated into active charcoal to obtain adsorbers with a highly specific surface. The adsorption behaviors of uranyl U(VI) ion, thorium(IV) and Eu(III) were studied by evaluating their distribution coefficients, Kd. Results show that all the prepared salts can adsorb the ions in the III and IV oxidation state from weak acid solutions, whereas uranyl ion is adsorbed mainly from weak basic solutions. The prepared compounds can be used successfully to absorb and concentrate actinides from nearly neutral solutions, such as natural waters. The 8-hydroxyquinoline salt of the benzylic anion showed the highest adsorption values and thus seems to be the most appropriate salt to use in the analysis of actinides in water. (literal)
Note
  • ISI Web of Science (WOS) (literal)
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  • 1.IENI-CNR, Sezione di Pavia, via Taramelli 16, 27100-Pavia, Italia. 2.Dipartimento di Chimica Generale, via Taramelli 12, 27100-Pavia, Italia. (literal)
Titolo
  • Adsorption of actinides by chelating agents containing benzene rings, fixed on charcoal (literal)
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