Gas Phase Photocatalysis on Large-Scale TiO2 Nanotube Layers for Pollutant Degradation: Influence of the Nanotube Crystallinity

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F23%3A43927881" target="_blank" >RIV/60461373:22310/23:43927881 - isvavai.cz</a>
Alternative codes found
RIV/00216275:25310/23:39920395 RIV/60461373:22350/23:43927881
Result on the web
<a href="https://pubs.acs.org/doi/pdf/10.1021/acsanm.3c03199?src=getftr" target="_blank" >https://pubs.acs.org/doi/pdf/10.1021/acsanm.3c03199?src=getftr</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsanm.3c03199" target="_blank" >10.1021/acsanm.3c03199</a>

Result language
angličtina
Original language name
Gas Phase Photocatalysis on Large-Scale TiO2 Nanotube Layers for Pollutant Degradation: Influence of the Nanotube Crystallinity
Original language description
In this work, for the first time, the influence of the crystallinity of TiO2 nanotube (TNT) layers on their gas phase photocatalytic performance was investigated under ISO standards using two distinct model pollutants, namely, hexane and acetaldehyde. TNT layers (1 μm thick) on 5 × 10 cm2 large Ti substrates were employed in this work due to their excellent adhesion to Ti upon annealing at high temperatures. Annealing of the TNT layers was carried out in a temperature range between 300 and 700 °C, resulting in TNT layers with different crystallinities, i.e., from the pure anatase phase to an 85% rutile phase. The superior performance of the TNT layers annealed at 600 °C with mixed anatase and rutile phase compared to other specimens was observed for both model pollutants, stemming from the band alignment between the two crystalline phases. For higher annealing temperatures, however, the photocatalytic performance of the TNT layers was reduced due to a partial disintegration of the TNTs. No surface contamination of the TNT layers with residues of pollutant degradation products was observed after experiments. © 2023 The Authors. Published by American Chemical Society.
Czech name
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Czech description
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Type
Jimp - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10402 - Inorganic and nuclear chemistry

Project
<a href="/en/project/GA21-27243S" target="_blank" >GA21-27243S: Synthesis of large area TiO2 nanotube layers for effective photocatalytic degradation of pollutants in gas phase and viruses</a>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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