Enhanced magnetic, ferroelectric and optical properties of Sr and Co co-doped BiFeO3 powders
Enhanced magnetic, ferroelectric and optical properties of Sr and Co co-doped BiFeO3 powders
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DOI：
10.1016/j.jallcom.2019.151941
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发表时间：
2019-11
影响因子：
6.2
通讯作者：
F. L. Wang;Y. Li;N. Wang;L. Zhu;Aditya Jain;Yanzong Wang;Fei Chen
中科院分区：
文献类型：
--
作者：
F. L. Wang;Y. Li;N. Wang;L. Zhu;Aditya Jain;Yanzong Wang;Fei Chen
The effects of Sr and Co doping on structural, multiferroic and optical properties were investigated in the Bi1-xSrxFe1-yCoyO3(x,y= 0, 0.05) powders prepared by the hydrothermal method. The structure of powders changes from distorted rhombohedral for BiFeO3to tetragonal for Bi0.95Sr0.05Fe0.95Co0.05O3. With Sr and Co doping, the particle size decreases and the surface morphology become homogeneous. A maximum magnetization of 5.66 emu/g has been achieved in the Bi0.95Sr0.05Fe0.95Co0.05O3. Sr and/or Co doped Bi1-xSrxFe1-yCoyO3samples show enhanced ferroelectric properties. The energy band gap of Bi1-xSrxFe1-yCoyO3has been modulated from 2.06 eV to 1.24 eV. The photocatalytic performance of the Bi1-xSrxFe1-yCoyO3powders is represented by the degradation rate of methyl orange and the highest degradation efficiency of ∼76% is obtained in Bi0.95Sr0.05Fe0.95Co0.05O3within 3 h under the visible light. The improved photocatalytic performance can be attributed to the reduction in band gap, the improvement of ferroelectric properties and the decrease of grain size induced by Sr and Co doping.
