Controlled synthesis of TiO2 nanosheets with exposed (001) facets for enhanced photocatalytic activity

Tailor-made TiO2 nanocrystals with well-defined exposed facets have attracted increasing research interest recently. The exposed facets greatly determine the reactive activity of TiO2 nanocrystals and dominate their application potential. Size-controllable TiO2 nanosheets with highly reactive {001}...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2019-02, Vol.479 (1)
Main Authors: Dai, Z D, Song, X Z, Kang, X L, Cao, J K, Hiroya, A, Ohara, S, Tan, Z Q
Format: Article
Language:English
Subjects:
Catalytic activity
Exposure
Nanocrystals
Nanosheets
Photocatalysis
Stability
Synthesis
Titanium dioxide
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Summary:Tailor-made TiO2 nanocrystals with well-defined exposed facets have attracted increasing research interest recently. The exposed facets greatly determine the reactive activity of TiO2 nanocrystals and dominate their application potential. Size-controllable TiO2 nanosheets with highly reactive {001} facets were synthesized by a conventional hydrothermal synthesis process. The particle sizes ranged from 25 nm to several micrometres and a tuneable percentage of {001} surface area ranged from 50 % to 90 % according to the particle size. The photocatalytic activity of TiO2 nanosheets smaller than 100 nm was much higher and very stable, comparing to the commercial TiO2 photocatalysts.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/479/1/012120