Chapter 52: Comparison of Photocatalytic Activity of TiO2 Anatase Prepared by the Sol-Gel Technique and Chemical Vapour Deposition on Naphthalene in the Gas Phase

0361558 - ÚCHP 2012 RIV NL eng C - Conference Paper (international conference)
Marinkovski, M. - Nacevski, G. - Tomovska, R. - Paunovic, P. - Fajgar, Radek
Chapter 52: Comparison of Photocatalytic Activity of TiO2 Anatase Prepared by the Sol-Gel Technique and Chemical Vapour Deposition on Naphthalene in the Gas Phase.
Nanotechnological Basis for Advanced Sensors. Dordrecht: Springer Science, 2011 - (Reithmaier, J.; Paunovic, P.; Kulisch, W.; Popov, C.; Petkov, P.), S.493-498. NATO Science for Peace and Security Series - B:, Physics and Biophysics. ISBN 978-94-007-0902-7. ISSN 1871-465X.
[NATO-Advanced-Study-Institute Conference on Nanotechnological Basis for Advanced Sensors. Sozopol (BG), 30.05.2010-11.06.2010]
Institutional research plan: CEZ:AV0Z40720504
Keywords : cvd * sol-gel technique * TiO2 photocatalysts
Subject RIV: CF - Physical ; Theoretical Chemistry
http://arl-repository.lib.cas.cz/nusl/UCHP-M/cav_un_epca-0361558_01.pdf

In this study the gas phase photocatalytic oxidation of naphthalene in the presence of TiO(2)-based photocatalysts prepared by chemical vapor deposition (CVD) and the sol-gel method is examined. The level of naphthalene degradation was examined with FTIR spectroscopy; the identification of the products obtained was performed by GC-MS measurements. The kinetics of the photooxidation reaction of naphthalene in excess of oxygen was investigated. It was found that the kinetics of naphthalene oxidation follow a first-order law; the rate constants were determined by means of mathematical modeling. The photocatalytic activity of TiO(2)-based photocatalysts prepared by CVD as a gas phase method and the sol-gel technique as a liquid method are compared. The photocatalysts showed an excellent efficiency for naphthalene degradation in the presence of oxygen; a complete mineralization of the aromatic toxic compound to CO(2) and water was achieved.
Permanent Link: http://hdl.handle.net/11104/0198850