Enhanced magnetic, ferroelectric and optical properties of Sr and Co co-doped BiFeO3 powders
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Abstract
Abstract 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 BiFeO3 to 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-yCoyO3 samples show enhanced ferroelectric properties. The energy band gap of Bi1-xSrxFe1-yCoyO3 has been modulated from 2.06 eV to 1.24 eV. The photocatalytic performance of the Bi1-xSrxFe1-yCoyO3 powders is represented by the degradation rate of methyl orange and the highest degradation efficiency of ∼76% is obtained in Bi0.95Sr0.05Fe0.95Co0.05O3 within 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.
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Research context
OpenAlex topics: Multiferroics and related materials · Advanced Condensed Matter Physics · Teratomas and Epidermoid Cysts
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (38)
Show source-provided references
1. TiO2-assisted photocatalytic degradation of azo dyes in aqueous solution: kinetic and mechanistic investigations–A review10.1016/j.apcatb.2003.11.010 ↗
2. ZnO hierarchical microsphere for enhanced photocatalytic activity10.1016/j.jallcom.2018.01.141 ↗
3. Efficient visible light driven photocatalytic hydrogen production from water using attapulgite clay sensitized by CdS nanoparticles10.1088/0957-4484/24/50/505401 ↗
4. Photocatalysts with internal electric field10.1039/C3NR03998F ↗
5. Pure–phase BiFeO3 ceramics with enhanced electrical properties prepared by two-step sintering10.1016/j.ceramint.2017.02.063 ↗
6. Low-temperature synthesis of pure BiFeO3 phase and variation in its morphology with temperature10.1016/j.ceramint.2018.07.038 ↗
7. Physics and applications of bismuth ferrite10.1002/adma.200802849 ↗
8. Visible-light photocatalytic properties of weak magnetic BiFeO3 nanoparticles10.1002/adma.200602377 ↗
9. A simple method using citric acid as the template agent to improve photocatalytic performance of BiFeO3 nanoparticles10.1016/j.matlet.2017.03.023 ↗
10. Shape-controlled preparation of bismuth ferrite by hydrothermal method and their visible-light degradation properties10.1016/j.jallcom.2015.07.059 ↗
11. Enhanced visible light photocatalytic activity of Gd-doped BiFeO3 nanoparticles and mechanism insight10.1038/srep26467 ↗
12. Novel and facile synthesis of Ba-doped BiFeO3 nanoparticles and enhancement of their magnetic and photocatalytic activities for complete degradation of benzene in aqueous solution10.1016/j.jhazmat.2016.03.052 ↗
13. Structural, magnetic and photocatalytic properties of Sr2+-doped BiFeO3 nanoparticles based on an ultrasonic irradiation assisted self–combustion method10.1016/j.ceramint.2012.05.051 ↗
14. Ferromagnetic and photocatalytic behaviors observed in Ca-doped BiFeO3 nanofibres10.1063/1.4801796 ↗
15. Sr and Pb co-doping effect on the crystal structure, dielectric and magnetic properties of BiFeO3 multiferroic compounds10.1016/j.jallcom.2017.02.288 ↗
16. Structural, magnetic and photocatalytic properties of Sr2+ doped BiFeO3 nanofibres fabricated by electrospinning10.1016/j.ceramint.2018.04.256 ↗
17. Effects of Nd3+ and high-valence Nb5+ co-doping on the structural, dielectric and magnetic properties of BiFeO3 multiferroics10.1016/j.ceramint.2018.01.194 ↗
18. Enhanced multiferroic properties of sono-synthesized BiFeO3 nanoceramics by co-doping of Sm and Mn elements10.1016/j.ceramint.2018.05.032 ↗
19. Rietveld analysis, dielectric and magnetic properties of Sr and Ti co-doped BiFeO3 multiferroic10.1063/1.3646557 ↗
20. Effects of Co doping on magnetic and electrochemical properties of BiFeO3 nanoparticles10.1016/j.jmmm.2017.10.092 ↗
21. Structural, optical and magnetic properties of BiFe1-xCoxO3 thin films10.1016/j.matlet.2014.04.172 ↗
22. Size dependent magnetic and electrical properties of Ba-doped nanocrystalline10.1063/1.4944817 ↗
23. Effect of Nd-doping on structure and microwave electromagnetic properties of BiFeO310.1016/j.jmmm.2016.11.080 ↗
24. Influence of Eu and Sr co-substitution on multiferroic properties of BiFeO310.1016/j.ceramint.2016.05.048 ↗
25. Structural, magnetic and ferroelectric properties of Pr doped multiferroics bismuth ferrites10.1016/j.jmmm.2015.06.067 ↗
26. Chemical state quantification of iron and chrom J.H. Lee, M.K. Kim, B. Bhoi, S.K. Kim, Single-crystalline Gd-doped BiFeO3 nanowires: R3c–to–Pn21a phase transition and enhancement in high-coercivity ferromagnetism10.1039/C7TC05362B ↗
27. Chemical state quantification of iron and chromium oxides using XPS: the effect of the background subtraction method10.1016/j.susc.2005.01.019 ↗
28. Tuning magnetic properties of BiFeO3 thin films by controlling Mn doping Concentration10.1016/j.ceramint.2017.12.230 ↗
29. Fabrication of bismuth molybdate photocatalyst co-substituted by gadolinium and tungsten for bismuth and molybdenum: design and radical regulating by the synergistic effect of redox centers and oxygen vacancies for boosting photocatalytic activity10.1016/j.jtice.2018.04.014 ↗
30. Dual oxidation state induced oxygen vacancies in Pr substituted BiFeO3 compounds: an effective material activation strategy to enhance the magnetic and visible light–driven photocatalytic properties10.1016/j.materresbull.2017.12.029 ↗
31. The impact of Yb and Co on structural, magnetic, electrical and photocatalytic behavior of nanocrystalline multiferroic BiFeO3 particles10.1016/j.ceramint.2017.09.088 ↗
32. Magneto-dielectric and multiferroic properties in Bi0.95Yb0.05Fe0.95Co0.05O310.1088/1402-4896/ab03a5 ↗
33. Photocatalytic activity, optical and ferroelectric properties of Bi0.8Nd0.2FeO3 nanoparticles synthesized by sol-gel and hydrothermal methods10.1016/j.jmmm.2018.03.043 ↗
34. Combined experimental and theoretical investigation on modulation of multiferroic properties in BiFeO3 ceramics induced by Dy and transition metals co-doping10.1016/j.jallcom.2018.12.381 ↗
35. A comparative study of the optical, magnetic and electrocatalytic properties of nano BiFeO3 with different morphologies10.1016/j.matlet.2011.12.091 ↗
36. Band-gap engineering and enhanced photocatalytic activity of Sm and Mn doped BiFeO3 nanoparticles10.1111/jace.14487 ↗
37. Experimental and first principles investigation of Bi1–xCexFeO3: structure, electronic and optical properties10.1016/j.jallcom.2017.05.273 ↗
38. Effect of ferroelectricity on solar-light-driven photocatalytic activity of BaTiO3- influence on the carrier separation and sterm layer formation10.1021/cm402092f ↗