Detail publikace

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

SOPHA, H. BAUDYS, M. SEPÚLVEDA SEPÚLVEDA, L. RUSEK, J. HROMÁDKO, L. RODRIGUEZ PEREIRA, J. KRÝSA, J. MACÁK, J.

Originální název

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

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

gas phase photocatalysis; TiO2 nanotube layers; annealing temperature; crystallinity; pollutants; VOCs

Autoři

SOPHA, H.; BAUDYS, M.; SEPÚLVEDA SEPÚLVEDA, L.; RUSEK, J.; HROMÁDKO, L.; RODRIGUEZ PEREIRA, J.; KRÝSA, J.; MACÁK, J.

Vydáno

12. 9. 2023

Nakladatel

American Chemical Society

Místo

WASHINGTON

ISSN

2574-0970

Periodikum

ACS Applied Nano Materials

Ročník

6

Číslo

18

Stát

Spojené státy americké

Strany od

17053

Strany do

17059

Strany počet

7

URL

https://pubs.acs.org/doi/10.1021/acsanm.3c03199

Plný text v Digitální knihovně

http://hdl.handle.net/11012/245067

BibTex

@article{BUT187328,
  author="Hanna Ingrid {Sopha} and Michal {Baudys} and Lina Marcela {Sepúlveda Sepúlveda} and Jakub {Rusek} and Luděk {Hromádko} and Jhonatan {Rodriguez Pereira} and Josef {Krýsa} and Jan {Macák}",
  title="Gas Phase Photocatalysis on Large-Scale TiO2 Nanotube Layers for Pollutant Degradation: Influence of the Nanotube Crystallinity",
  journal="ACS Applied Nano Materials",
  year="2023",
  volume="6",
  number="18",
  pages="17053--17059",
  doi="10.1021/acsanm.3c03199",
  issn="2574-0970",
  url="https://pubs.acs.org/doi/10.1021/acsanm.3c03199"
}