Magnetic and Photocatalytic Behaviors of Ca Mn Co-Doped BiFeO3 Nanofibres

作者：Yannan Feng, Huan‐Chün Wang, Yang Shen, Yuan‐Hua Lin, Ce‐Wen Nan · 发表于：Modern Research in Catalysis · 年份：2013 · DOI：10.4236/mrc.2013.23a001 · 被引用次数：17 · 研究领域：Multiferroics and related materials、Ferroelectric and Piezoelectric Materials、Advanced Condensed Matter Physics

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.