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How Do Ionic Liquids Affect the Surface Structure of Titania Photocatalyst? An Electron-Trap Distribution-Analysis Study
Abstract
Titanium(IV) oxide, titania, photocatalyst particles were prepared from titanium alkoxide in the presence of several kinds of ionic liquids, and it was clarified that a group of samples exhibited photocatalytic activity for phenol degradation under the irradiation of light of wavelength >400 nm higher than those of the other group of samples. Although the conventional structural analytical results could not be related to the activity, electron-trap distribution measured by reversed double-beam photoacoustic spectroscopy suggested that a part of the ionic liquid induced the creation of a surface amorphous layer covered with hydrophobic organic residues to enhance the adsorption of phenol on the surface.
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Authors (6)
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Guangyi Chen
- Institute for Catalysis, Hokkaido University, Sapporo
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Mai Takashima
- Institute for Catalysis, Hokkaido University, Sapporo
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Adriana Zaleska-Medynska Prof. dr hab. inż.
- Uniwersytet Gdański
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Bunsho Ohtani
- Institute for Catalysis, Hokkaido University, Sapporo
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Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1021/acs.jpcc.1c09174
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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Journal of Physical Chemistry C
no. 125,
pages 28143 - 28149,
ISSN: 1932-7447 - Language:
- English
- Publication year:
- 2021
- Bibliographic description:
- Łuczak J., Pancielejko A., Chen G., Takashima M., Zaleska-Medynska A., Ohtani B.: How Do Ionic Liquids Affect the Surface Structure of Titania Photocatalyst? An Electron-Trap Distribution-Analysis Study// Journal of Physical Chemistry C -Vol. 125, (2021), s.28143-28149
- DOI:
- Digital Object Identifier (open in new tab) 10.1021/acs.jpcc.1c09174
- Verified by:
- Gdańsk University of Technology
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