Surface complexation and charge transfer processes in colloidal semiconductors studied by laser flash photolysis

0353152 - ÚFCH JH 2011 RIV CZ eng C - Conference Paper (international conference)
Grabner, G. - Jirkovský, Jaromír
Surface complexation and charge transfer processes in colloidal semiconductors studied by laser flash photolysis.
New trends in application of photo and electro catalysis. Proceedings of the Czech-Austrian workshop. Praha: VŠCHT Praha, 2006 - (Krýsa, J.; Klusoň, P.), s. 14-16. ISBN 978-80-7080-022-5.
[New trends in application of photo and electro catalysis. Hnanice (CZ), 20.11.2006-22.11.2006]
R&D Projects: GA MŠMT 1M0577
Institutional research plan: CEZ:AV0Z40400503
Keywords : photocatalysis * aqueous colloidal solutions
Subject RIV: CG - Electrochemistry

Aqueous colloidal solutions of quantum sized particles of TiO2 undergo an ageing process beginning with their preparation. In course of time, the mean size of nanoparticles is gradually increasing and some of their physico-chemical properties are changing as well. In the present study, the decrease of the spectral blue shift of the semiconductor absorption threshold was measured to determine the corresponding changes of band gap energy of the Q-TiO2 particles.
Permanent Link: http://hdl.handle.net/11104/0192473