THE PHOTOCATALYTIC ABATEMENT OF NOX IMISSIONS USING COMMERCIAL FUNCTIONAL COATING WITH POROUS MORPHOLOGY

0506999 - ÚFCH JH 2020 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Žouželka, Radek
THE PHOTOCATALYTIC ABATEMENT OF NOX IMISSIONS USING COMMERCIAL FUNCTIONAL COATING WITH POROUS MORPHOLOGY.
IX. Konference pigmenty a pojiva. Pardubice: Chemagazín, 2016, s. 19-21. ISBN 978-80-906269-1-1.
[KONFERENCE PIGMENTY A POJIVA /9./. Pardubice (CZ), 07.11.2016-08.11.2016]
Institucionální podpora: RVO:61388955
Klíčová slova: TiO2 * NOx * imissions * photocatalysis * air purification
Obor OECD: Physical chemistry

Titanium dioxide is the most important photocatalysts used for purifying applications. It was the purpose of this study to investigate the photocatalytic activity of commercial Protectam FN (R) containing TiO2 nanoparticles towards NO and NO2. Experiments on concrete as a support for photocatalyst were carried out in two types of reactors with laminar and turbulent flow under ´´real world setting´´ conditions of temperature, relative humidity, irradiation and pollutant concentrations. The results showed that photocatalytic process significantly reduced both nitrogen oxides in the air. The decrease in the total concentration of nitrogen oxides on contact with the photocatalytic surface reached 20-50 %, i.e. at a concentration of 100 ppb the decrease in NO and NO2 was 20-50 ppb. The nitrogen oxides were oxidized up to their highest oxidation state, nitric acid ( or nitrates) and undesirable nitrous acid was not formed at all. The experimental study conducted showed that the photocatalytic oxidation on the surface of the photocatalytic Protectam FN (R) coating is an effective method for the removal of nitrogen oxides from contaminated air.
Trvalý link: http://hdl.handle.net/11104/0298107