Gas Phase Photocatalysis on Large-Scale TiO<sub>2</sub> Nanotube Layers for Pollutant Degradation: Influence of the Nanotube Crystallinity
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F23%3APU150352" target="_blank" >RIV/00216305:26620/23:PU150352 - isvavai.cz</a>
Result on the web
<a href="https://pubs.acs.org/doi/10.1021/acsanm.3c03199" target="_blank" >https://pubs.acs.org/doi/10.1021/acsanm.3c03199</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsanm.3c03199" target="_blank" >10.1021/acsanm.3c03199</a>
Alternative languages
Result language
angličtina
Original language name
Gas Phase Photocatalysis on Large-Scale TiO<sub>2</sub> 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 mu m thick) on 5 x 10 cm(2) 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 degrees 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 degrees 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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
21000 - Nano-technology
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ACS Applied Nano Materials
ISSN
2574-0970
e-ISSN
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Volume of the periodical
6
Issue of the periodical within the volume
18
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
17053-17059
UT code for WoS article
001079143300001
EID of the result in the Scopus database
2-s2.0-85173151476