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2000
Volume 11, Issue 3
  • ISSN: 1573-4110
  • E-ISSN: 1875-6727

Abstract

Anatase nano titanium oxide was used as a sorbent for the separation and preconcentration of selenium(IV) from liquor. The selenium was determined by hydride generation-atomic fluorescence spectrometry (HG-AFS) with KBH4-HCl. The results showed that the adsorption percentage of selenium( IV) was 92% at pH 4-6, and the elution by NaOH reached 95%. The adsorption equilibrium accorded with the Langmuir isotherm model and the maximum adsorption capacity was 32.17 mg g-1 at 293 K. The detection limit of selenium(IV) (3σ, n = 11) was 0.57 µg L-1 and the relative standard deviation was 7.48%. The process has been successfully applied to the contents determination of trace selenium(IV) in some natural water samples with satisfactory results.

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/content/journals/cac/10.2174/1573411011666150219203541
2015-07-01
2025-05-13
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  • Article Type:
    Research Article
Keyword(s): Adsorption; nano-TiO2; natural water samples; selenium(IV)
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