Journal
CHEMPHYSCHEM
Volume 17, Issue 21, Pages 3570-3575Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cphc.201600476
Keywords
methylene blue; niobium; perovskite phases; photocatalytic degradation; tantalum
Funding
- CICECO-Aveiro Institute of Materials (FCT) [POCI-01-0145-FEDER-007679, UID/CTM/50011/2013]
- national funds through FCT/MEC
- FEDER
- FCT [SFRH/BD/67023/2009]
- Fundação para a Ciência e a Tecnologia [SFRH/BD/67023/2009] Funding Source: FCT
Ask authors/readers for more resources
Alkali tantalates and niobates are listed as important photocatalysts for the development of renewable energy technologies and environmental remediation. Herein, the photocatalytic degradation of methylene blue dye in aqueous solution by using highly crystalline particles with perovskite-like structures, LiTaO3, LiNbO3, NaTaO3, NaNbO3, KNbO3, and KTaO3, is investigated. It is demonstrated that ferroelectric KNbO3 is the most efficient photocatalyst of those tested because it combines an electronic band structure that can respond successfully to UVA light with a relatively high surface energy that enhances the catalytic properties. Additionally, the built-in electric field due to internal polarization of ferroelectric particles may contribute to the unique properties of this functional photocatalyst. This work provides an ideal platform for the rational design of more efficient ferroelectric-based photocatalytic devices.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available