Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/18127
Title: | Alkali Niobate and Tantalate Perovskites as alternative photocatalysts |
Author: | Zlotnik, Sebastian Tobaldi, David M. Seabra, Paula Labrincha, João A. Vilarinho, Paula M. |
Issue Date: | Nov-2016 |
Publisher: | Wiley |
Abstract: | 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. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/18127 |
DOI: | 10.1002/cphc.201600476 |
ISSN: | 1439-4235 |
Appears in Collections: | CICECO - Artigos |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Alkali Niobate and Tantalate Perovskites as Alternative Photocatalysts_10.1002cphc.201600476.pdf | 1.82 MB | Adobe PDF |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.