TITLE:
Magnetic and Photocatalytic Behaviors of Ca Mn Co-Doped BiFeO3 Nanofibres
AUTHORS:
Yannan Feng, Huanchun Wang, Yang Shen, Yuanhua Lin, Cewen Nan
KEYWORDS:
Bismuth Ferrite; Nanofibre; Magnetic; Photocatalytic
JOURNAL NAME:
Modern Research in Catalysis,
Vol.2 No.3A,
August
21,
2013
ABSTRACT:
Ca and Mn co-doped BiFeO3 ultrafine
nanofibres were prepared with the purpose of improving magnetic and photocatalytic
performances of the one-dimensional multiferroic material. Impurity phase
introduced by both Bi fluctuation and Mn substitution can be suppressed by Ca
doping and a space group transition from R3c to C222 can also be triggered by
Bi-site doping. With co-substitution of Mn into iron site, the Ca0.15Bi0.85Mn0.05Fe0.95O3 nanofibres presented a larger saturation magnetization than the singly Ca
doping samples, possibly due to the increased double exchange interation of Fe3+-O-Fe2+,
strengthened by Ca and Mn. Photocatalytic degradation test witnessed a similar
drop-and-rise performance with the magnetism.