Enhanced magnetic, dielectric and photoconductive properties of Zr doped BiFeO3 nanostructures

Kathirvel, A.; Krishna, K.N. Indhu; Ganga, R.; Maheswari, A. Uma; Sivakumar, M.

doi:10.1016/j.physe.2022.115306

Cited by 8 publications

(3 citation statements)

References 3 publications

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“…At a dopant concentration of 2.5% Zr with a particle size of 46 nm, the dielectric constant was found to be 366 at RT/10 3 Hz. The observed increase in the dielectric constant can be attributed to the reduction of Fe 3+ ions and an increase in O 2 vacancies [ 101 ]. Tuning the dielectric properties has been reported through doping BFO with Ni.…”

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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“…As a composite metal oxide of iron and bismuth, Bi 2 Fe 4 O 9 is widely used in various elds due to its suitable band gap (about 2.1eV) [9] . Currently, it is widely used in photocatalytic hydrogen production [10] , battery [11] , photocatalyst [12] , photodetector [13] , etc. The structure of Bi 2 Fe 4 O 9 has been tested in detail by various methods [14][15] .…”

Section: Introductionmentioning

confidence: 99%

Study on the Photocatalytic Degradation of Rhodamine B by g-C3N4/Bi2Fe4O9 Heterojunction Photocatalyst

Guan

Zhang

et al. 2023

J Inorg Organomet Polym

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G-C3N4/Bi2Fe4O9 composite photocatalysts were prepared by mechanica mixing-calcination and coprecipitation-hydrothermal method. The heterojunction structure formed by the composite of the two materials made it di cult for photogenerated electrons and holes to reunite, and improved the degradation rate of RhB. At 240 min, 25%-g-C3N4/Bi2Fe4O9 photocatalytic degradation e ciency of 10 mg/L RhB was good, reaching to 87.59%. The reaction rate constant was 0.00674 min-1, which was 2.53 times and 2.32 times that of Bi2Fe4O9 and g-C3N4. Superoxide radical (O2-•) and •OH were the main active components in the dye degradation process.

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“…Similarly, Nd-doped BiFeO 3 thin films for random access memory applications were successfully grown [ 24 ]. Kathirvel et al [ 25 ] reported that Zr doped in Fe site BiFeO 3 thin films had enhanced magnetic properties. Liu et al reported multi-element (La, Er, Zn, Ti) doping of BiFeO 3 thin films, resulting in reduced leakage current and improved ferroelectric properties [ 26 ].…”

Section: Introductionmentioning

confidence: 99%

Tunable Optical and Multiferroic Properties of Zirconium and Dysprosium Substituted Bismuth Ferrite Thin Films

et al. 2022

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This work presents optical and multiferroic properties of bismuth ferrite thin films that are affected by zirconium and dysprosium substitution. Non-centrosymmetric BiFeO3,Bi0.95Zr0.05FeO3, and Bi0.95Dy0.05FeO3 thin films were coated on Pt/TiO2/SiO2/Si substrates using the spin coating method. The crystal structure, optical properties, microstructural, ferromagnetic, and ferroelectric properties of doped bismuth ferrite thin films were systematically investigated. From the XRD patterns, all the prepared thin films matched well with the rhombohedral structure with R3c space group with no observed impurity phases. The average crystallite size of the bismuth ferrite thin films were between 35 and 47 nm, and the size depended on the type of dopant. The determined energy band gap values of BiFeO3, Bi0.95Dy0.05FeO3, and Bi0.95Zr0.05FeO3 thin films were 2.32 eV, 2.3 eV, and 2 eV, respectively. Doping of Dy and Zr at the Bi site led to reduced surface roughness. The prepared thin films exhibited enhanced ferromagnetic and ferroelectric properties. The remnant magnetization of Zr-doped BiFeO3 was greater than that of the BiFeO3 and Dy-doped BiFeO3 thin films. From the obtained results, it was concluded that Zr-doped BiFeO3 thin films are suitable for solar cell fabrication.

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Enhanced magnetic, dielectric and photoconductive properties of Zr doped BiFeO3 nanostructures

Cited by 8 publications

References 3 publications

Recent Advances toward Enhanced Photocatalytic Proprieties of BiFeO3-Based Materials

Recent Advances toward Enhanced Photocatalytic Proprieties of BiFeO3-Based Materials

Study on the Photocatalytic Degradation of Rhodamine B by g-C3N4/Bi2Fe4O9 Heterojunction Photocatalyst

Tunable Optical and Multiferroic Properties of Zirconium and Dysprosium Substituted Bismuth Ferrite Thin Films

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