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Photocatalytic degradation of toluene, butyl acetate and limonene under UV and visible light

  • Since Central Europeans spend most of their time indoors, the quality of the indoor air is important. Sources of volatile organic compounds (VOC) indoors are e. g. building materials, wall and floor coverings and interior equipment, whose emissions might influence the health and wellbeing of people. Photocatalysis is one opportunity to improve the indoor air quality by degrading VOCs ideally to carbon dioxide and water. Titanium dioxide (Ti02) in its anatase modification (band gap of 3.2 eV) is a common used UV-active photocatalytic coating. Because of the lack of UV light indoors Ti02 needs to be modified to be active under visible light too. This work focuses on the photocatalytic degradation of toluene, butyl acetate and limonene under UV LED light and blue LED light in emission test chambers under controlled climatic conditions. These compounds were selected due to their frequent occurrence in the indoor environment and their supply was done with a gas mixing System. Ceramic tilesSince Central Europeans spend most of their time indoors, the quality of the indoor air is important. Sources of volatile organic compounds (VOC) indoors are e. g. building materials, wall and floor coverings and interior equipment, whose emissions might influence the health and wellbeing of people. Photocatalysis is one opportunity to improve the indoor air quality by degrading VOCs ideally to carbon dioxide and water. Titanium dioxide (Ti02) in its anatase modification (band gap of 3.2 eV) is a common used UV-active photocatalytic coating. Because of the lack of UV light indoors Ti02 needs to be modified to be active under visible light too. This work focuses on the photocatalytic degradation of toluene, butyl acetate and limonene under UV LED light and blue LED light in emission test chambers under controlled climatic conditions. These compounds were selected due to their frequent occurrence in the indoor environment and their supply was done with a gas mixing System. Ceramic tiles coated with modified and pure Ti02 were used as photocatalytic active material. Previous results and experimental details were already published by Mull and Wilke (2014).zeige mehrzeige weniger

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Metadaten
Autor*innen:Birte Mull, Olaf WilkeORCiD
Dokumenttyp:Beitrag zu einem Tagungsband
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):Healthy Buildings Europe 2015
Jahr der Erstveröffentlichung:2015
Erste Seite:1
Letzte Seite:4
Freie Schlagwörter:Blue LED light; Emission test chamber; Titanium dioxide; Volatile organic compounds
Veranstaltung:Healthy Buildings Europe 2015
Veranstaltungsort:Eindhoven, The Netherlands
Beginndatum der Veranstaltung:18.05.2015
Enddatum der Veranstaltung:20.05.2015
ISBN:978-90-386-3889-8
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:20.02.2016
Referierte Publikation:Nein
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