Photoluminescence Properties and Antibacterial Activity of BiFeO3 and BiFeO3-CoFe2O4 Composite
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In this paper, the authors compared the photoluminescence (PL) characteristics and antimicrobial activity of BiFeO3 and BiO3-CoFe2O4 compounds.Abstract:
In this work, BiFeO3 and BiFeO3-CoFe2O4 bioceramic compounds were investigated and their photoluminescence (PL) characteristics and antimicrobial activity were compared in detail. The crystallite size, crystalline strain, and optical band gap of the compounds were estimated using the Williamson-Hall (W-H) plot, which was derived from powder x-ray diffraction patterns. The W-H plot revealed that the crystallite size increased and the crystalline strain value decreased for the BiFeO3-CoFe2O4 when compared to pure BiFeO3. The formation of a binary phase structure was confirmed by the Raman spectrum of the synthesized composite material. In the PL analysis, weak PL visible emission bands were observed for both the pure and composite samples, indicating that fewer oxygen vacancy defects occurred. The antimicrobial activity of pure BiFeO3 and BiFeO3-CoFe2O4 was investigated in detail, and the results are discussed.read more
Citations
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References
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Antimicrobial activity of metal-substituted cobalt ferrite nanoparticles synthesized by sol–gel technique
A. H. Ashour,Ahmed I. El-Batal,M. I. A. Abdel Maksoud,Gharieb S. El-Sayyad,Sh. Labib,E. Abdeltwab,Mohamed El-Okr +6 more
TL;DR: The surface area of zinc cobalt ferrite nanoparticles (ZCFO) was 52.56m2/g, the average pore size was 1.84nm, and pore volume was 0.136mL/g.
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Enhanced visible-light activities of porous BiFeO3 by coupling with nanocrystalline TiO2 and mechanism
Muhammad Humayun,Amir Zada,Zhijun Li,Mingzheng Xie,Xuliang Zhang,Yang Qu,Fazal Raziq,Liqiang Jing +7 more
TL;DR: In this paper, different mole ratio percentage of nanocrystalline anatase TiO2/porous nanosized BiFeO3 (T/P-BFO) nanocomposites with effective contacts have been fabricated by putting the as-prepared P-bFO into the TiO 2 sol, followed by drying at 80°C and then calcining at 450°C for 2h.
Journal ArticleDOI
Directed Self-Assembly of Epitaxial CoFe2O4–BiFeO3 Multiferroic Nanocomposites
TL;DR: CFO islands are patterned on Nb-doped SrTiO(3) to direct the self-assembly of epitaxial CFO-BFO nanocomposites, producing square arrays of CFO pillars.
Journal ArticleDOI
Photocatalytic degradation of alachlor using type-II CuS/BiFeO3 heterojunctions as novel photocatalyst under visible light irradiation
TL;DR: In this paper, a sustainable visible light promoted photocatalytic route has been developed for mineralization of alachlor pesticide using CuS/BiFeO3 heterojunction materials.
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Synthesis and magnetic characterization of novel CoFe2O4–BiFeO3 nanocomposites
TL;DR: In this paper, a mixed spinel-perovskite nanocomposites of x CoFe 2 O 4 (1−− x )BiFeO 3 ( x ǫ = 0.1, 0.2, 0 3, 0 4) have been prepared by sol-gel technique and the structure and morphology of the composites were examined by means of X-ray diffraction, transmission electron microscopy (TEM), and electron diffraction (ED).