Title
Photocatalytic acetaldehyde oxidation in air using spacious <tex>$TiO_{2}$</tex> films prepared by atomic layer deposition on supported carbonaceous sacrificial templates Photocatalytic acetaldehyde oxidation in air using spacious <tex>$TiO_{2}$</tex> films prepared by atomic layer deposition on supported carbonaceous sacrificial templates
Author
Faculty/Department
Faculty of Sciences. Physics
Faculty of Sciences. Bioscience Engineering
Publication type
article
Publication
Amsterdam ,
Subject
Physics
Chemistry
Source (journal)
Applied catalysis : B : environmental. - Amsterdam
Volume/pages
160(2014) , p. 204-210
ISSN
0926-3373
ISI
000340687900024
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Supported carbon nanosheets and carbon nanotubes served as sacrificial templates for preparing spacious TiO2 photocatalytic thin films. Amorphous TiO2 was deposited conformally on the carbonaceous template material by atomic layer deposition (ALD). Upon calcination at 550 °C, the carbon template was oxidatively removed and the as-deposited continuous amorphous TiO2 layers transformed into interlinked anatase nanoparticles with an overall morphology commensurate to the original template structure. The effect of type of template, number of ALD cycles and gas residence time of pollutant on the photocatalytic activity, as well as the stability of the photocatalytic performance of these thin films was investigated. The TiO2 films exhibited excellent photocatalytic activity toward photocatalytic degradation of acetaldehyde in air as a model reaction for photocatalytic indoor air pollution abatement. Optimized films outperformed a reference film of commercial PC500.
E-info
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Full text (open access)
https://repository.uantwerpen.be/docman/irua/2d09c2/117094.pdf
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