In 3+-doped TiO 2 and TiO 2/In 2S 3 Nanocomposite for photocatalytic and stoichiometric degradations

0377999 - ÚACH 2013 RIV US eng J - Článek v odborném periodiku
Štengl, Václav - Opluštil, F. - Němec, T.
In 3+-doped TiO 2 and TiO 2/In 2S 3 Nanocomposite for photocatalytic and stoichiometric degradations.
Photochemistry and Photobiology. Roč. 88, č. 2 (2012), s. 265-276. ISSN 0031-8655. E-ISSN 1751-1097
Grant CEP: GA MPO FI-IM5/231
Výzkumný záměr: CEZ:AV0Z40320502
Klíčová slova: WARFARE AGENTS * HOMOGENEOUS HYDROLYSIS * OPTICAL-PROPERTIES
Kód oboru RIV: CA - Anorganická chemie
Impakt faktor: 2.287, rok: 2012

A novel In 3+-doped TiO 2 and TiO 2/In 2S 3 nanocomposites for photocatalytic degradation of environmental pollutants and stoichiometric degradation of warfare agents were prepared by a homogeneous hydrolysis with urea and thioacetamide, respectively. The prepared samples series TiInTAA were annealed at 600°C. The prepared samples were characterized by X-ray powder diffraction, IR spectroscopy, Raman spectroscopy, specific surface area (BET) and porosity determination. The method of UV-Vis diffuse reflectance spectroscopy was employed to estimate band-gap energies. The photocatalytic activity (PCA) was tested by degradation of Orange dye, whereas stoichiometric activity was studied by degradation of sulfur mustard. Incorporation of In 3+ into titania lattice increases PCA of TiO 2 in the visible light and increases stoichiometric decomposition of sulfur mustard against nondoped TiO 2 as well. PCA of TiO 2/In 2S 3 composite depends on the optimal ratio of TiO 2:In 2S 3 in composite, while the activity for stoichiometric decomposition of sulfur mustards depends on the content of In 2S 3 in nanocomposite.
Trvalý link: http://hdl.handle.net/11104/0209994