Adsorption of Trace Selenium on Nano-Ti2 from Natural Water Samples

Author(s): Ting Huang

Journal Name: Current Analytical Chemistry

Volume 11 , Issue 3 , 2015

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Graphical 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.

Keywords: Adsorption, natural water samples, nano-TiO2, selenium(IV).

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Article Details

Year: 2015
Page: [193 - 198]
Pages: 6
DOI: 10.2174/1573411011666150219203541
Price: $65

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