NDLI: Potassium niobate nanostructures: controllable morphology, growth mechanism, and photocatalytic activity

Content Provider	Royal Society of Chemistry (RSC)
Author	Jiang, Linqin Qiu, Yu Yi, Zhiguo
Copyright Year	2013
Abstract	Various potassium niobate (KNbO3) nanostructures, including nanowires, nanotowers, nanocubes and nanorods, were successfully fabricated through rather facile hydrothermal processes. By adjusting the concentration of potassium hydroxide, reaction temperature and reaction time, the product morphologies can be easily controlled. High crystallinity as well as the active (001) crystal plane exposed on KNbO3 nanocrystals offer enhanced photocatalytic activity for rhodamine B decomposition in aqueous solutions under UV-visible light irradiation. The level of photocatalytic activity depends strongly on the microstructure of KNbO3 and the photoreactivity towards RhB degradation follows the order of KNbO3 nanocubes > nanowires > nanorods > nanotowers. The KNbO3 nanocubes prepared at 200 °C for 7 days in the presence of 6.5 M KOH exhibited the enhanced photocatalytic performance for the degradation of RhB to 89% after 240 min of irradiation under a sunlight simulator.
Starting Page	2878
Ending Page	2885
Page Count	8
File Format	HTM / HTML PDF
ISSN	20507488
Volume Number	1
Issue Number	8
Journal	Journal of Materials Chemistry A
DOI	10.1039/c2ta01056a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	KOH Potassium niobate Hydrothermal circulation Potassium hydroxide Rhodamine
Content Type	Text
Resource Type	Article
Subject	Chemistry Renewable Energy, Sustainability and the Environment Materials Science

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