Original title: Photocatalytic niobium and tantallum doped monodispersed nanoparticles of titania for visible-ligt applications
Authors: Štengl, Václav ; Houšková, Vendula ; Bakardjieva, Snejana ; Murafa, Nataliya
Document type: Papers
Conference/Event: Nanocon 2009 / Conference with International Participation /1./, Rožnov pod Radhoštěm (CZ), 2009-10-20 / 2009-10-22
Year: 2009
Language: eng
Abstract: Niobium or tantalum doped anatase were prepared by thermal hydrolysis of peroxotitanium complex aqueous solutions dissolving niobium or tantalum peroxo-comples at 100 degrees C for 3 days The synthesized samples were characterized by X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), High Resolution Transmission Electron Microscopy (HRTEM), surface area (BET) and porosity determination (BJH) The photocatalytic activity of doped titania samples was determined by decomposition of salicylic acid during irradiation at 365 nm and 400 nm Niobium-doping caused the increase of unit cell constants of anatase and the shape change of anatase crystallites from spindle-like to cubic-like structure. The niobium and tantalum doping increases the stability of anatase to above 1000 degrees C by inhibiting the growth of Mania crystallites.
Keywords: niobium; peroxo-complexes; titania
Project no.: CEZ:AV0Z40320502 (CEP)
Host item entry: NANOCON 2009 Conference Proceedings, ISBN 978-80-87294-13-0

Institution: Institute of Inorganic Chemistry AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0187062

Permalink: http://www.nusl.cz/ntk/nusl-41583


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Research > Institutes ASCR > Institute of Inorganic Chemistry
Conference materials > Papers