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Photocatalytic abatement of air pollutants: Focus on their interference in mixtures
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SYSNO ASEP 0561808 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Photocatalytic abatement of air pollutants: Focus on their interference in mixtures Tvůrce(i) Žouželka, Radek (UFCH-W) RID
Martiniaková, Ivana (UFCH-W)
Ducháček, T. (CZ)
Mužíková, Barbora (UFCH-W)
Mikysková, Eliška (UFCH-W)
Rathouský, Jiří (UFCH-W) RID, ORCIDČíslo článku 114235 Zdroj.dok. Journal of Photochemistry and Photobiology A-Chemistry. - : Elsevier - ISSN 1010-6030
Roč. 434, JAN 2023 (2023)Poč.str. 6 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova photocatalysis ; TiO2 ; NOx Vědní obor RIV CF - Fyzikální chemie a teoretická chemie Obor OECD Physical chemistry CEP LM2018124 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy EF16_013/0001821 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy FV40209 GA MPO - Ministerstvo průmyslu a obchodu GA19-12109S GA ČR - Grantová agentura ČR Způsob publikování Open access Institucionální podpora UFCH-W - RVO:61388955 UT WOS 000870209300004 EID SCOPUS 85137395900 DOI 10.1016/j.jphotochem.2022.114235 Anotace Up to now, the research has been mostly devoted to the photocatalytic removal of individual pollutants. As in real situations, the pollutants are always presented in a mixture, it is crucial to know whether there is some sort of interference, which can influence the efficiency of the whole photocatalytic degradation process. Here, we investigated the ability of two commercial coatings (binder-containing FN NANO®2 and binder-free AEROXIDE® TiO2 P25) to abate ozone, nitric oxide, and acetaldehyde separately and in their mixtures. Both photocatalysts effectively removed the pollutants present separately in the air stream, achieving conversions of 30–60 % (at an inlet concentration of 0.1 ppmv), even at the UV-A irradiation intensity as low as 0.05 mW cm−2. Furthermore, the use of binder-containing coating provided stable ozone conversions (30–40 %) in the full range of relative humidity, which is extraordinary in comparison with published data. The kinetic analysis indicates that the degradation mechanisms of nitric oxide, acetaldehyde, and ozone considerably differed. While for nitric oxide the reaction in the adsorbed state played a crucial role, for acetaldehyde and ozone that was marginal. Importantly, owing to the differences in degradation mechanisms, no mutual interference occurred when pollutant mixtures were treated. This finding is of major importance for the application of photocatalysis as environmental technology. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2024 Elektronická adresa https://hdl.handle.net/11104/0334308
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