Frequency dependent dielectric relaxation of Ba-doped BiFeO<sub>3</sub> nanoparticles

Suresh, Swathi; Kathirvel, A.; Maheswari, A. Uma; Sivakumar, M.

doi:10.1088/2053-1591/ab45a8

Cited by 6 publications

(1 citation statement)

References 18 publications

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“…The obtained dielectric constant value for Bi 1−x Ba x FeO 3 nanoparticles (x = 0.015) of 125 (at RT/10 2 Hz) was found to be higher than that of pure BFO. This observation can be attributed to the smaller grain size (57.1 nm) and the increased density of defects, such as O 2 vacancies, resulting in a substantial space-charge polarization [ 96 ]. Furthermore, Mazumder et al reported the effect of Pb-doping on the dielectric properties of BFO prepared through a straightforward simultaneous precipitation technique which was subsequently followed using a traditional sintering process.…”

Section: Bismuth Ferritementioning

confidence: 99%

Recent Advances toward Enhanced Photocatalytic Proprieties of BiFeO3-Based Materials

Nassereddine,

Benyoussef,

Asbani

et al. 2023

Nanomaterials

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Owing to their remarkable success in photocatalytic applications, multiferroic BiFeO3 and its derivatives have gained a highly promising position as electrode materials for future developments of efficient catalysts. In addition to their appropriate band gaps, these materials exhibit inherent intrinsic polarizations enabling efficient charge carrier separation and their high mobility without the need for additional co-catalysts. Here, we review the existing strategies for enhancing the photocatalytic performances of BiFeO3-based materials and we describe the physico-chemical properties at the origin of their exceptional photocatalytic behavior. A special focus is paid to the degradation of organic pollutants and water splitting, both driven through photocatalysis to unveil the correlation between BiFeO3 size, substitution, and doping on the one hand and the photocatalytic performances on the other hand. Finally, we provide practical recommendations for future developments of high-performing BiFeO3-based electrodes.

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Section: Bismuth Ferritementioning

confidence: 99%

Recent Advances toward Enhanced Photocatalytic Proprieties of BiFeO3-Based Materials

Nassereddine,

Benyoussef,

Asbani

et al. 2023

Nanomaterials

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Enhanced photocatalytic activity of V3O7 / V2O5 – reduced graphene oxide nanocomposite towards methylene blue dye degradation

Aruchamy,

Sudarsan,

Ajith

et al. 2024

Environ Sci Pollut Res

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This work investigates the photocatalytic performance of V 2 O 5 and V 3 O 7 nanoparticles and their nanocomposites with rGO. The as-annealed V 2 O 5 and V 3 O 7 nanoparticles exhibited pure orthorhombic and monoclinic structures with an optical bandgap of 2.3 and 2.5 eV, respectively. The corresponding vibrational modes using Raman and FTIR spectroscopy analysis further con rm the form. The morphological studies reveal that V 2 O 5 and V 3 O 7 nanoparticles possess plate and petal-like morphology, respectively. Moreover, in the case of V 2 O 5 /V 3 O 7 -rGO nanocomposites, the plate/petal-like nanoparticles are embedded within rGO sheets. Incorporating nanoparticles within rGO sheets has quenched the green photoluminescence emission, enhancing their photocatalytic performance upon irradiation with white light of 100 mW/cm 2 . This is ascribed to the effective transport of interfacial electrons from vanadium oxide nanoparticles to the rGO surface, reducing the recombination of photogenerated charge carriers. These results indicate that the vanadium oxide/rGO nanocomposites have potential applications in wastewater treatment.

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XRD, Dielectric, Raman and Mössbauer Spectroscopy Studies of a Bi1−xBaxFe1−x(Zn1/3Nb2/3)xO3 System Prepared by the Solid-State Reaction

Boukhari,

Abdelkafi,

Abdelmoula

et al. 2023

J. Electron. Mater.

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Frequency dependent dielectric relaxation of Ba-doped BiFeO₃ nanoparticles

Cited by 6 publications

References 18 publications

Recent Advances toward Enhanced Photocatalytic Proprieties of BiFeO3-Based Materials

Recent Advances toward Enhanced Photocatalytic Proprieties of BiFeO3-Based Materials

Enhanced photocatalytic activity of V3O7 / V2O5 – reduced graphene oxide nanocomposite towards methylene blue dye degradation

XRD, Dielectric, Raman and Mössbauer Spectroscopy Studies of a Bi1−xBaxFe1−x(Zn1/3Nb2/3)xO3 System Prepared by the Solid-State Reaction

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Frequency dependent dielectric relaxation of Ba-doped BiFeO3 nanoparticles

Cited by 6 publications

References 18 publications

Recent Advances toward Enhanced Photocatalytic Proprieties of BiFeO3-Based Materials

Recent Advances toward Enhanced Photocatalytic Proprieties of BiFeO3-Based Materials

Enhanced photocatalytic activity of V3O7 / V2O5 – reduced graphene oxide nanocomposite towards methylene blue dye degradation

XRD, Dielectric, Raman and Mössbauer Spectroscopy Studies of a Bi1−xBaxFe1−x(Zn1/3Nb2/3)xO3 System Prepared by the Solid-State Reaction

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Frequency dependent dielectric relaxation of Ba-doped BiFeO₃ nanoparticles