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Photocatalytic abatement of NOx pollutants in the air using commercial functional coating with porous morphology
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SYSNO ASEP 0476028 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Photocatalytic abatement of NOx pollutants in the air using commercial functional coating with porous morphology Tvůrce(i) Žouželka, Radek (UFCH-W) RID
Rathouský, Jiří (UFCH-W) RID, ORCIDZdroj.dok. Applied Catalysis B - Environmental. - : Elsevier - ISSN 0926-3373
Roč. 217, NOV 2017 (2017), s. 466-476Poč.str. 11 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova Air purification ; Gaseous pollutants ; NOx ; Photocatalysis ; TiO 2 Vědní obor RIV CF - Fyzikální chemie a teoretická chemie Obor OECD Physical chemistry CEP GA17-18972S GA ČR - Grantová agentura ČR LM2015073 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Open access Institucionální podpora UFCH-W - RVO:61388955 UT WOS 000405158000047 EID SCOPUS 85020788374 DOI https://doi.org/10.1016/j.apcatb.2017.06.009 Anotace Titanium dioxide is the most important photocatalyst used for purifying applications. The purpose of this study was to investigate the photocatalytic activity of the commercial product Protectam FN2, containing Evonik P25 titanium dioxide nanopowder, with regard to NO and NO2 abatement. Photocatalytic experiments on the photocatalytic coatings on concrete and plaster substrates were carried out in two types of flow reactors, namely one with laminar flow and another with ideally-mixed flow, under „real world conditions“ of temperature, relative humidity, irradiation intensity and pollutant concentrations. The results showed that the photocatalytic process significantly reduced the concentration of both nitrogen oxides in the air. The reaction rate, i.e., the decrease in the concentration of NOx achieved in the steady-state for the inlet concentration of NO and NO2 of 0.1 ppmv, which corresponds to highly polluted urban air, was up to 75 and 50 mu mol m(-2) h(-1), respectively, at the flow rate of 3000 cm(3) min(-1) and relative humidity of 50%. Further, even two years after their application to the surface of concrete walls along a busy thoroughfare, the photocatalytic coating maintained high effectivity. (C) 2017 The Authors. Published by Elsevier B.V. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2018
Počet záznamů: 1