Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/65720
Title: A new low-temperature solution route to aurivillius-type layered oxyfluoride perovskites Bi2MO5F (M = Nb, Ta) as photocatalysts
Authors: Lei, S
Cheng, D
Gao, X
Fei, L 
Lu, W 
Zhou, J
Xiao, Y
Cheng, B
Wang, Y
Huang, H 
Keywords: Aurivillius
Hierarchical hollow spheres
Oxyfluoride perovskites
Photocatalysis
Solution synthesis
Issue Date: 2017
Publisher: Elsevier
Source: Applied catalysis B : environmental, 2017, v. 205, p. 112-120 How to cite?
Journal: Applied catalysis B : environmental 
Abstract: Aurivillius oxyfluoride perovskites exhibit great potential in photocatalysis, which are generally prepared by high-temperature solid-state reactions and some impurity phases are always unavoidable. Herein, a new low-temperature solution method has been successfully developed for the synthesis of Bi2NbO5F and Bi2TaO5F pure phases. The electron microscopy results reveal that the products were composed of the hierarchical hollow spheres with porous surface. The formation and growth mechanisms of the products were proposed based on the time-dependent evolution. The experimental band gaps of Bi2NbO5F (2.86 eV) and Bi2TaO5F (2.95 eV) were also first obtained. The photodegradation tests demonstrated that the products could be effectively served as catalysts for degradation of Rhodamine B and methyl orange under UV-light irradiation via the photocatalytic reaction, and also could be used in visible-light degradation of Rhodamine B via the photosensitization process. This low-temperature solution preparation of Aurivillius oxyfluorides opens a new facile route to tackle the versatile chemistry of various oxyfluoride perovskites.
URI: http://hdl.handle.net/10397/65720
ISSN: 0926-3373
EISSN: 1873-3883
DOI: 10.1016/j.apcatb.2016.12.029
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

WEB OF SCIENCETM
Citations

1
Last Week
0
Last month
Citations as of Oct 15, 2017

Page view(s)

34
Last Week
0
Last month
Checked on Oct 15, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.