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Does Symmetry Control Photocatalytic Activity of Titania-Based Photocatalysts?

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Title: Does Symmetry Control Photocatalytic Activity of Titania-Based Photocatalysts?
Authors: Janczarek, Marcin Browse this author
Wei, Zhishun Browse this author
Mogan, Tharishinny R. Browse this author
Wang, Lei Browse this author →KAKEN DB
Wang, Kunlei Browse this author
Nitta, Akio Browse this author
Ohtani, Bunsho Browse this author →KAKEN DB
Kowalska, Ewa Browse this author →ORCID
Keywords: heterogeneous photocatalysis
faceted anatase
decahedral anatase
octahedral anatase
morphology
symmetry
photocatalytic activity
Issue Date: Sep-2021
Publisher: MDPI
Journal Title: Symmetry
Volume: 13
Issue: 9
Start Page: 1682
Publisher DOI: 10.3390/sym13091682
Abstract: Decahedral anatase particles (DAPs) have been prepared by the gas-phase method, characterized, and analyzed for property-governed photocatalytic activity. It has been found that depending on the reaction systems, different properties control the photocatalytic activity, that is, the particle aspect ratio, the density of electron traps and the morphology seem to be responsible for the efficiency of water oxidation, methanol dehydrogenation and oxidative decomposition of acetic acid, respectively. For the discussion on the dependence of the photocatalytic activity on the morphology and/or the symmetry other titania-based photocatalysts have also been analyzed, that is, octahedral anatase particles (OAP), commercial titania P25, inverse opal titania with and without incorporated gold NPs in void spaces and plasmonic photocatalysts (titania with deposits of gold). It has been concluded that though the morphology governs photocatalytic activity, the symmetry (despite its importance in many cases) rather does not control the photocatalytic performance.
Type: article
URI: http://hdl.handle.net/2115/83172
Appears in Collections:触媒科学研究所 (Institute for Catalysis) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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