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Indexed by:会议论文

Date of Publication:2019-01-01

Included Journals:CPCI-S、EI

Volume:479

Issue:1

Key Words:Chemical industry; Nanocrystals; Nanosheets; Particle size; Photocatalysis; Photocatalytic activity; Silicon compounds; Titanium dioxide, Controlled synthesis; Research interests; Size-controllable; Surface area; TiO2 nanocrystals; TiO2 photocatalyst, Hydrothermal synthesis

Abstract: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.