Počet záznamů: 1

Photocatalytic Activity of Boron-Modified Titania under UV and Visible-Light Illumination

  1. 1.
    0343592 - UACH-T 2011 RIV US eng J - Článek v odborném periodiku
    Štengl, Václav - Houšková, Vendula - Bakardjieva, Snejana - Murafa, Nataliya
    Photocatalytic Activity of Boron-Modified Titania under UV and Visible-Light Illumination.
    ACS Applied Materials and Interfaces. Roč. 2, č. 2 (2010), s. 575-580 ISSN 1944-8244
    Grant CEP: GA ČR GA203/08/0334
    Výzkumný záměr: CEZ:AV0Z40320502
    Klíčová slova: anatase * boron * doping * homogeneous hydrolysis * photocatalytic activity
    Kód oboru RIV: CA - Anorganická chemie
    Impakt faktor: 2.925, rok: 2010

    Nanosized boron(III) oxide-doped titania was prepared by homogeneous hydrolysis of titanium oxo-sulfate with urea in aqueous solutions in the presence of amorphous boron. The prepared samples were annealing at 700 degrees C. The structure of as-prepared samples was characterized by X-ray powder diffraction (XRD) and selected area electron diffraction (SAED) and surface area (BET) and porosity determination (BJH). The morphology and microstructure characteristics were obtained by scanning electron microscopy (SEM) and high-resolution electron microscopy (HRTEM). The method of UV/vis diffuse reflectance spectroscopy was employed to estimate band gap energies of the boron-doped titania. The photoactivity of the prepared samples was assessed by the photocatalytic decomposition of Orange II dye in an aqueous slurry during irradiation at 365 and 400 nm wavelength.
    Trvalý link: http://hdl.handle.net/11104/0186038