Record details

    Removal of arsenate and selenite from aqueous solution using nano-amorphous iron-titanium hydrous oxide
    Herzogová, L.
    Kubička, D.
    Novák, P.
    Thanh, D. N.
    Vaculíková, Lenka
    Vu, H.N.
    Symposium on Catalysis (45. : 04.11.2013-06.11.2013 : Praha, Česká republika)
Publication type
Source title - monograph
    45. Symposium on Catalysis - Book of Abstracts
    Autoři celkem: 6
    Rozsah: 1 s.
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Abstract (in english)
   Metaloids such as selenium (Se) and arsenic (As) are among the most important environmental contaminants affecting environment and human health. The Fe-Ti hydrous oxide was synthesized and used as an adsorbent for removal of arsenate (As(V)) and selenite (Se(IV)) from aqueous solution. The new synthesized adsorbent was investigated using Transmission Electron Microscopy (TEM), X-Ray powder diffraction (XRD), the Brunauer-Elmet-Teller nitrogen adsorption technique (BET-N2 adsorption), Fourier transform spectroscopy (FTIR), thermogravimetric analysis (TGA) and batch experiments were carried out to determine its adsorption properties. It is shown that the adsorbent was nano-amorphous hydrous oxide with high specific surface area of 230 m2/g. The maximum adsorption capacity for As(V) and Se(IV) at pH 7 was 67.56 mg g-1 and 84.03 mg g-1, respectively.
    The ligand exchange of both As(V) and Se(IV) species, taking place via OH- groups on the adsorbent surface was the main adsorption mechanism. The high uptake capability of nano-amorphous Fe-Ti hydrous oxide make it a new potentially attractive adsorbent for the removal of both arsenic and selenium from water.
    AV ČR Brno, Ústav geoniky
Contributor code
    AV ČR, ÚG
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Import date
    24. 10. 2014