BiFeO<sub>3</sub> perovskite as an efficient photocatalyst synthesised by soft chemical route

Verma, Manisha; Kumar, Arun; Das, Tapas; Kumar, Vinod; Singh, Shruti; Shankar, V. Siva; Prajapati, Dinesh; Sonwani, Ravi Kumar; Sahoo, Kedar; Mandal, K. D.

doi:10.1080/10667857.2020.1782061

Cited by 13 publications

(3 citation statements)

References 34 publications

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“…This gives an onset of absorption of 2.2 eV for S6H, i.e., BFO while it is equal to 2.34 eV for S18H, i.e., Bi 2 Fe 4 O 9 . Obtained values are well consistent with other previous reports [53,54]. For the intermediate treatment time (i.e., 12 h), the onset is very close to the one of BFO as expected knowing that 20% of BFO is present in the mixture.…”

Section: Optical Propertiessupporting

confidence: 91%

“…Indeed, while BFO absorption is higher than Bi 2 Fe 4 O 9 below about 2.65 eV (where the curves intersect), it becomes significantly much lower above this value making Bi 2-Fe 4 O 9 more interesting for photocatalyst applications. It is interesting to note that our as-grown Bi 2 Fe 4 O 9 by degrading 83% of MB after 3 h of sun irradiation is competitive compared to other Bi 2 Fe 4 O 9 nanosheets synthesized using a solvothermal method [53], which can degrade 100% of MB but after 12 h of illumination.…”

Section: Photocatalytic Experimentsmentioning

confidence: 84%

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Facile synthesis of pure BiFeO3 and Bi2Fe4O9 nanostructures with enhanced photocatalytic activity

Taazayet

Zouari

Hosni

et al. 2021

J Mater Sci: Mater Electron

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In the present work, pure BiFeO 3 and pure Bi 2 Fe 4 O 9 single phases were successfully synthesized by tailoring hydrothermal synthesis route. The structural and morphology analyses have been achieved by X-ray diffraction and by electron microscopy. Scanning and transmission electron microscopy images revealed a strong change in the morphology from agglomerated nanoparticles with sizes less than 10 nm for BiFeO 3 to plate-like particles with larger sizes (edges of 100 to 200 nm while a thickness of * 30 nm) for Bi 2 Fe 4 O 9 . Such a small size obtained for BFO nanoparticles has never been observed before for similar synthesis method without any added reagents, to the best of our knowledge. The photocatalytic activity of the as-prepared samples for degradation of methylene blue dye under sunlight irradiation shows a good efficiency. It reaches 61% and 83% after 3 h for BiFeO 3 and Bi 2 Fe 4 O 9 nanostructures, respectively. Despite a bigger size and higher bandgap, the better efficiency of Bi 2 Fe 4 O 9 compared to BiFeO 3 is explained by a much stronger absorption especially for light with energy higher than 2.65 eV.

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Section: Optical Propertiessupporting

confidence: 91%

Section: Photocatalytic Experimentsmentioning

confidence: 84%

Facile synthesis of pure BiFeO3 and Bi2Fe4O9 nanostructures with enhanced photocatalytic activity

Taazayet

Zouari

Hosni

et al. 2021

J Mater Sci: Mater Electron

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“…State-of-the-art photocatalytic properties have been exhibited by BiFeO3 for watersplitting applications as well as degradation of organic pollutants [11][12][13][14]. For optoelectronic devices working in visible regions, BiFeO3 is also the most promising candidate as its energy band gap varies between 2.6-2.8 eV [15].…”

Section: Introductionmentioning

confidence: 99%

Influence of Gd-Doping Concentration on Structural, Electronic, Magnetic and Optical Properties of Multiferroic Material (PFeO3): A Density Functional Theory-Based Investigation

Abbas,

Mirza,

Al-Qaisi

et al. 2023

Preprint

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Developing novel multiferroic (MF) materials with cross-linked effects (i.e., piezoelectricity, magnetoelectricity, and magnetostriction) that are functional at ambient temperature is a major goal for scientists. Herein, we employed first-principles calculations to investigate the effect of Gd-doping concentration on structural, electronic, magnetic and optical properties of PFeO3. It’s evident that structural stability increases as we increase doping concentration of Gd in parent compound. The calculated energy band structures reveals that electronic states shrink towards Fermi level as we increase Gd-doping concentration in spin (↑) channel. However, a gap between electronic states is induced from − 1.0 eV towards higher energies and this gap expands by increasing doping concentration in spin (↓) channel. By increasing Gd-doping concentration in PFeO3, the values of magnetic moments also increases. These compounds are promising candidates for spintronic applications as they are hugely magnetized compounds. A renowned GGA + U formulism has been employed in this study to investigate optical characteristics of P1 − xGdxFeO3 (X = 10%, 20%, 30%) over an energy range of 0‒14 eV. In spin (↑) channel, maximum values of ε2(ω) in visible region occurs at 2.36, 2.48 and 2.81 eV for P1 − xGdxFeO3 with 10%, 20% and 30% doping of Gd, respectively. However, considerable peaks of P1 − xGdxFeO3 with 10%, 20% and 30% doping of Gd in spin (↓) channel occur at 2.29, 2.41 and 2.57, respectively. The calculated optical parameters show that these compounds are promising candidates for potential photovoltaic applications.

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Purple-blue luminescence and magnetic properties of visible-light active novel BiMn2O5 photocatalyst by ultrasonication assisted sol–gel method

Dubey,

Modi

et al. 2023

Appl. Phys. A

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BiFeO₃ perovskite as an efficient photocatalyst synthesised by soft chemical route

Cited by 13 publications

References 34 publications

Facile synthesis of pure BiFeO3 and Bi2Fe4O9 nanostructures with enhanced photocatalytic activity

Facile synthesis of pure BiFeO3 and Bi2Fe4O9 nanostructures with enhanced photocatalytic activity

Influence of Gd-Doping Concentration on Structural, Electronic, Magnetic and Optical Properties of Multiferroic Material (PFeO3): A Density Functional Theory-Based Investigation

Purple-blue luminescence and magnetic properties of visible-light active novel BiMn2O5 photocatalyst by ultrasonication assisted sol–gel method

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BiFeO3 perovskite as an efficient photocatalyst synthesised by soft chemical route

Cited by 13 publications

References 34 publications

Facile synthesis of pure BiFeO3 and Bi2Fe4O9 nanostructures with enhanced photocatalytic activity

Facile synthesis of pure BiFeO3 and Bi2Fe4O9 nanostructures with enhanced photocatalytic activity

Influence of Gd-Doping Concentration on Structural, Electronic, Magnetic and Optical Properties of Multiferroic Material (PFeO3): A Density Functional Theory-Based Investigation

Purple-blue luminescence and magnetic properties of visible-light active novel BiMn2O5 photocatalyst by ultrasonication assisted sol–gel method

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BiFeO₃ perovskite as an efficient photocatalyst synthesised by soft chemical route