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发布时间：2019-07-01
论文类型：会议论文
发表时间：2019-01-01
收录刊物：EI、CPCI-S
卷号：479
期号：1
关键字：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
摘要：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.