Development of BiFeO3/MnFe2O4 ferrite nanocomposites with enhanced magnetic and electrical properties

Remya, K. P.; Rajalakshmi, R.; Ponpandian, N.

doi:10.1039/d0na00255k

Cited by 25 publications

(10 citation statements)

References 43 publications

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“…The size impact of the nanoparticles may also be responsible for the improved magnetic characteristics. A similar observation was previously reported [31]. The magnetic recovery of the catalysis and photocatalyst after degradation can be aided by the ferromagnetism behavior of BiFeO 3 perovskite nanoparticles.…”

Section: Magnetic Studiessupporting

confidence: 88%

“…The suppression of the known spiral (cycloidal) spin structure with a period of around 62 nm and uncompensated spins at the nanoscale can be attributed to the saturation magnetization value reported in BiFeO 3 perovskite nanoparticles [31,32]. BiFeO 3 has G-type anti-ferromagnetic ordering with a linear applied eld dependency of magnetization.…”

Section: Magnetic Studiesmentioning

confidence: 95%

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Facile Synthesis, Characterization, Catalytic and Photocatalytic Activity of Multiferroic BiFeO3 Perovskite Nanoparticles

Sukumar¹,

Mathankumar²,

Dash

et al. 2022

Preprint

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We report the synthesis of multiferroic BiFeO3 perovskite nanoparticles using the microwave combustion technique. Phase evolution is investigated by X-ray diffraction (XRD), which confirms that the formation of a secondary α-Bi2O3 phase with a monoclinic structure along with the existing rhombohedral (BiFeO3) structure. The average crystalline size has been found at 50 nm. The optical band gap was calculated from the Tauc’s plot it has been found 2.18 eV, as measured by diffuse reflectance spectroscopy (DRS). The appearances of Fourier transform infrared spectroscopy (FT-IR) absorption bands at 550 and 444 cm-1 were correlated to the rhombohedral stretching modes of bismuth ferrite nanostructure. The morphology observations using scanning electron microscopy (SEM) showed the formation of nanosized grains with pores. Energy-dispersive X-ray analysis (EDX) was done to confirm the extent of Bi3+, Fe3+, and O2- in the samples. The magnetization-Field (M-H) hysteresis curves recorded from the vibrating sample magnetometer (VSM) revealed the appearance of ferrimagnetic behavior at room temperature. The specific surface area characterized by N2 adsorption-desorption isotherm is found 44.86 m2 g-1 using Brunauer-Emmett-Teller (BET) technique. The as-fabricated BiFeO3 perovskite nanoparticles were investigated for their superior catalytic activity in two applications, which include (i) the conversion of glycerol to formic acid in a selective liquid phase batch reactor at atmospheric pressure. This bismuth-based nanoparticles exhibit as an efficient multifunctional catalyst with high conversion and selectivity efficiency around 99.2% and 98.5%, respectively, (ii) the photocatalytic degradation of rhodamine B under visible light irradiation is found maximum efficiency (99.9%), when a small amount of H2O2 was added during photocatalysis, indicating the samples possessed photo-Fenton like catalytic activity. Finally, we concluded that the BiFeO3 perovskite nanoparticles' high performance in future multifunctional devices is demonstrated by the simultaneous enhancement of catalytic and photocatalytic activities.

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Section: Magnetic Studiessupporting

confidence: 88%

Section: Magnetic Studiesmentioning

confidence: 95%

Facile Synthesis, Characterization, Catalytic and Photocatalytic Activity of Multiferroic BiFeO3 Perovskite Nanoparticles

Sukumar¹,

Mathankumar²,

Dash

et al. 2022

Preprint

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“…BiFeO3 nanostructures have attracted much interest for potential applications due to their multicellular properties at room temperature, appropriate band gaps, and electrostatic hyper polarization 58,59 . BiFeO3, as data storage, optical use in visible light regions, and synapse-like function 60 .…”

Section: Physiochemical Applicationmentioning

confidence: 99%

Recent advances in bismuth ferrite nanomaterials: Synthesis, characterization and application

2021

jcbsc

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Attracted materials nanostructures consist of bismuth ferrite strong attention to being a candidate optimistic in many applications due to perovskite structure as aspect of relevance to electronic structure and chemical bonding. This review article focuses on recent developments regarding the synthesis, characterization, and applications of BiFeO3 nanostructures.The synthesis of bismuth ferrite with different morphologies phases parameters as exhibits multi-ferroic properties of both ferroelectric ordering and antiferromagnetic ordering which is useful for applications in memory, spintronic photovoltaics and magneto-electric sensor devices. Based on account of advanced characteristics like electrical resistance, the multiferroic BiFeO3 nanomaterials are emerged to be a tough challenger in the several physiochemical research area in comparison to the other inorganic perovskites nanostructures.

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“…BiFeO 3 continues to be one of the most important functional materials in terms of ferroelectric and magnetic properties at room temperature 1 – 6 . Although there have been a large number of important work carried out on various aspects of multifunctional properties of BiFeO 3 7 – 12 , two core issues such as the understanding of the nucleation and growth of BiFeO 3 and the ways to invoke strong magnetoelectric coupling effects are still remaining important and are being extensively addressed by researchers 10 , 13 – 19 . Preparation of BiFeO 3 by means of solid state reaction method is mostly reported to lead to the presence of other thermodynamically stable impurity phases such as Bi 25 FeO 40 , Bi 2 Fe 4 O 9 which is understood to be mainly due to the volatility of Bi 20 , 21 .…”

Section: Introductionmentioning

confidence: 99%

Atomic scale insights on the growth of BiFeO3 nanoparticles

Parvathy

Govindaraj

2022

Sci Rep

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This study provides new insights on the formation of the nanocrystallites of phase pure BiFeO3 prepared using sol–gel method with tartaric acid as the fuel as comprehended based on the local structure and magnetic hyperfine fields at Fe sites using Mossbauer spectroscopy. Important steps involved in the growth of the nanocrystallites of BiFeO3 in the sol–gel reaction are elucidated in a detailed manner in this study for the first time. Three important stages with the second stage marked by the formation of as high as 75% of nanocrystallites of BiFeO3 occurring over a narrow calcination temperature interval 700–723 K have been deduced in this study. Variation of hyperfine parameters with calcination temperature of the dried precursor gel leading to an increase in the mean size of crystallites of BiFeO3 has been deduced. The nanoparticles of BiFeO3 are deduced to exhibit weak ferromagnetic property in addition to being strongly ferroelectric based on the magnetization and P-E loop studies. Consequently an appreciable magneto electric coupling effect in terms of significant changes in P-E loop variation with the application of external magnetic field is elucidated in this study, which is comprehended based on the defects associated with BiFeO3 nanoparticles.

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Development of BiFeO₃/MnFe₂O₄ ferrite nanocomposites with enhanced magnetic and electrical properties

Abstract: Herein we report the development of novel multiferroic nanocomposites with enhanced magnetic and electrical properties by employing a simple cost-effective chemical process at low temperatures.

Cited by 25 publications

References 43 publications

Facile Synthesis, Characterization, Catalytic and Photocatalytic Activity of Multiferroic BiFeO3 Perovskite Nanoparticles

Facile Synthesis, Characterization, Catalytic and Photocatalytic Activity of Multiferroic BiFeO3 Perovskite Nanoparticles

Recent advances in bismuth ferrite nanomaterials: Synthesis, characterization and application

Atomic scale insights on the growth of BiFeO3 nanoparticles

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