Low-temperature inorganic synthesis and photocatalytic activity of anatase TiO2 powders

0350979 - ÚFCH JH 2011 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Tasbihi, M. - Štangar, U. L. - Černigoj, U. - Jirkovský, Jaromír
Low-temperature inorganic synthesis and photocatalytic activity of anatase TiO2 powders.
New trends in application of photo and electro catalysis. Proceedings of the 2nd Czech-Austrian workshop. Praha: VŠCHT Praha, 2009 - (Krýsa, J.; Klusoň, P.), s. 23-26. ISBN 978-80-7080-722-4.
[New trends in application of photo and electro catalysis. Telč (CZ), 02.12.2008-04.12.2008]
Výzkumný záměr: CEZ:AV0Z40400503
Klíčová slova: TiO2 * nanoparticles * LDH
Kód oboru RIV: CG - Elektrochemie

Nowadays, it is a great challenge to synthesize different crystalline TiO2 using low temperature methods without calcination step. In our study, the nanocrystalline titanium dioxide sols were prepared from TiCl4 under acidic conditions. The powder was obtained with consequent drying of the sols at temperatures below 100 oC and these samples were then characterized using different techniques. The results show that the properties of the asprepared powders depend mainly on the type of the acid and less on the amount of the acid. The usage of HClO4 instead of HNO3 as the peptizing agent results in colloids with higher photocatalytic activity
Trvalý link: http://hdl.handle.net/11104/0190831