Synthesis and investigation of multifunctional TiO2 photocatalysts modified by metal nanoparticles

Photocatalysts based on the anodic single-walled titania nanotubes modified with metal nanoparticles (Au, Pd, Pt) were prepared and investigated. The metal nanoparticles sizes are in a range from 3 to 15 nm. The wall thickness of the nanotubes varied from 14 to 17 nm. It is established that photocat...

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Bibliographic Details
Published in:Catalysis communications 2024-02, Vol.187, p.106907, Article 106907
Main Authors: Savchuk, Timofey P., Volkova, Lidiya S., Dronov, Аlexey A., Butmanov, Danil D., Pinchuk, Olga V., Kytina, Ekaterina V., Gavrilov, Sergey A., Konstantinova, Elizaveta A.
Format: Article
Language:English
Subjects:
Ethanol decomposition
Metal nanoparticles
Methane formation
Photocatalysis
TiO2
Titania nanotubes
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Summary:Photocatalysts based on the anodic single-walled titania nanotubes modified with metal nanoparticles (Au, Pd, Pt) were prepared and investigated. The metal nanoparticles sizes are in a range from 3 to 15 nm. The wall thickness of the nanotubes varied from 14 to 17 nm. It is established that photocatalysts with Au, Pd, Pt produce acetaldehyde during complete ethanol decomposition reaction. Additionally the formation of methane occurs in the TiO2 nanotubes with Pd and Au nanoparticles. We obtained firstly the multifunctional TiO2 nanotubes modified with Pd and Au nanoparticles for use both in air purification and in the production of hydrocarbon fuel precursors. •On the surface of TiO2 with Au, Pd, Pt nanoparticles, ethanol completely decomposes.•During the decomposition of ethanol, acetaldehyde is formed.•In TiO2 with Pd and Au, methane is also formed during the decomposition of ethanol.•TiO2 with Pd and Au can be used to convert organic air pollutants into methane.
ISSN:1566-7367
1873-3905
DOI:10.1016/j.catcom.2024.106907