Spinel nanoferrite (CoFe2O4): The impact of Cr doping on its structural, surface morphology, magnetic, and antibacterial activity traits

Kaur, Sukhmanbir; Chalotra, Vishal Kumar; Jasrotia, Rohit; Bhasin, Venuka; Suman, .; Kumari, Swati; Thakur, Sanjay; Ahmed, Jahangeer; Mehtab, Amir; Ahmad, Tokeer; Singh, Ranjit; Godara, Sachin Kumar

doi:10.1016/j.optmat.2022.113026

Cited by 30 publications

(10 citation statements)

References 20 publications

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“…Ferrites are considered a favorable class with scientific attention to magnetic materials, among them cobalt‐based ferrites being a specific case due to their supremely remarkable structural, optical, magnetic, and electrical properties [1–5] . Cobalt‐based ferrite materials have found specific applications in various fields such as sensors, storage devices, spintronics, catalysis, and transformers additionally, these are significant in pollutant adsorption capabilities, eminently good in photo catalyst, antibacterial agent, and high chemical stability, etc [6] .…”

Section: Introductionmentioning

confidence: 99%

“…Ferrites are considered a favorable class with scientific attention to magnetic materials, among them cobalt-based ferrites being a specific case due to their supremely remarkable structural, optical, magnetic, and electrical properties. [1][2][3][4][5] Cobalt-based ferrite materials have found specific applications in various fields such as sensors, storage devices, spintronics, catalysis, and transformers additionally, these are significant in pollutant adsorption capabilities, eminently good in photo catalyst, antibacterial agent, and high chemical stability, etc. [6] Due to these potential applications, researchers are paying significant attention to synthesizing cobalt-based ferrites because of their promising and significant characteristics, such as low electrical conductivity, structural and magnetic properties, high coercivity, and reduced eddy currents.…”

Section: Introductionmentioning

confidence: 99%

“…Its exceptional physical and chemical stability makes it highly suitable for applications in magnetic recording, including audio and video tape, as well as high-density digital recording discs. [3] Over the past years, various synthesis techniques have been employed to obtain materials in the nano form, aiming to enhance their magnetic parameters. These techniques include solid-state reaction/ball milling, hydrothermal synthesis, coprecipitation, sol-gel method, micro-emulsion method, and reverse micelle method.…”

Section: Introductionmentioning

confidence: 99%

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Magnetic, Electric, and Antimicrobial Properties of Chromium‐ Doped Cobalt Zinc Ferrite Nanoplates

Badiger,

Hegde,

Kumbar

et al. 2024

ChemistrySelect

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In the present work, Co0.5Zn0.5CrxFe2‐xO4 (CZFCO) (x=0.0, 0.1, 0.2, 0.3, 0.4, and 0.5) has been successfully driven from self‐ignited sol‐gel method, using citric acid as a chelating agent. The powder XRD patterns are confirming the formation of single‐phase cubic crystallographic structure with satisfying the Fd‐3m space group. The Rietveld refinement process is carried out to obtain the structural information, including lattice parameters, cell volume, and bond length. Crystallite size and micro‐strain values are found by the Debye Scherrer formula as well as by HR‐TEM the particle size is shown at about 7.86 nm and the presence of two distinct lattice fringes. The SEM digital images display soft wart grains nature, where the majority of grains are forming a dense agglomerate nature with nano plate texture. EDS spectra reflect the presence of all the elements without impurities. The formations of spinel ferrite and metal‐oxygen bond were approbated by FT‐IR Spectra. Further, RT UV‐Vis spectra (DRS) show a decrease in the optical band gap from 1.56 eV to 1.46 eV. The magnetic properties indicate soft ferromagnetic behaviour and as increasing Cr dopant saturation magnetization and coercivity significantly decrease while in the case of X=0.5 suddenly enhanced the Ms, this well corroborates with cation distribution. X‐ray photoelectron spectroscopy (XPS) technique has confirmed the presence of all elements and shows the valance of the Cr is +3 and +2 states at respected octahedral and tetrahedral sites. RT dielectric studies firmly agreed with the Maxwell‐Wagner type of polarization following Koop's theory. RT Impedance spectra suggest consent of the Debye type of relaxation and the Cole‐Cole map shows semi arc‐shaped curve fitted with Gaussian distribution. The imaginary and real parts of the relative permeability of frequency‐dependent curves decayed and firmly showed the favourable character of electric properties. Finally, all the antimicrobial activity results suggested the potential utility of derived compounds as antibacterial agents.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Magnetic, Electric, and Antimicrobial Properties of Chromium‐ Doped Cobalt Zinc Ferrite Nanoplates

Badiger,

Hegde,

Kumbar

et al. 2024

ChemistrySelect

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“…These characteristics make cobalt ferrite in addition to their excellent physical and chemical stability appropriate for magnetic applications such as audio, videotape and high-density digital recording disks. [5] It is worth mentioning that both NiFe Nanotechnology is being discovered as a promising technology and has established extraordinary achievements in numerous fields including wastewater treatment. [6] Owing to their improved properties, ferrites are extensively investigated for their catalytic effect on the degradation of dyes, adsorption activity for the removal of heavy metals as well as biological toxins.…”

Section: Introductionmentioning

confidence: 99%

Improved Photocatalytic and Antibacterial Activity of Mg_0.33Ni_0.33Co_0.33Gd_xFe_2‐xO₄ Nanoparticles Synthesized via the Co‐precipitation Method

et al. 2023

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This study reports the synthesis of Mg0.33Ni0.33Co0.33GdxFe2‐xO4 nanoparticles (NPs) with 0.00≤x≤0.08 by the co‐precipitation method. The structural and optical properties of NPs are investigated. As Gd content increases, the lattice parameter and the bandgap energy increase whereas the particle size decreases. The photocatalytic performance of NPs is evaluated in the degradation of methyl violet (MV) dye under sunlight irradiation. The best activity is exhibited by Mg0.33Ni0.33Co0.33GdxFe2‐xO4 where x=0.04. The rate of the photodegradation reaction is boosted by increasing the pH and temperature. 95.4 % of MV is degraded after 240 min upon the addition of 5 wt. % carbon dot. The NPs are tested against Gram‐positive (Staphylococcus aureus and Enterococcus faecium) and Gram‐negative bacteria (Escherichia coli and Leclercia adecarboxylata) isolated from wastewater. The antibacterial activity was tested by the minimum inhibitory concentration and minimum bactericidal concentration broth microdilution assay, agar well diffusion assay and time‐kill test. The results show that the NPs exhibit inhibitory activity against Gram‐positive bacteria. Furthermore, NPs show bacteriostatic activity after 3 hours of incubation. The antibiofilm activity of the NPs is tested by the inhibition of biofilm formation and the destruction of pre‐formed biofilm assays. The results show an inhibitory activity of the NPs against Gram‐positive biofilms.

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“…Ferrite composites are one of the classes of composite materials that got special attention due to their attractive applications such as magnetic and electrical devices, catalytic applications, chemical sensors, microwave industries, etc. (Kaur et al., 2022; Qin et al., 2017; Sathiya Priya et al., 2019). As one of the photocatalysts, ferrites can be served as a potential substance in the degradation of organic coloring materials due to their structural and morphological arrangements.…”

Section: Introductionmentioning

confidence: 99%

Catalytic degradation of toxic organic dye using an aluminum‐doped Cu_0.4Zn_0.6‐xAl_xFe₂O₄ (x = 0.0, 0.2, 0.4, 0.6) spinel ferrite in a photo‐Fenton system

Akhter

Dutta

Dhar

et al. 2022

Environmental Quality Mgmt

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Catalytic activity of spinel ferrite in breaking down toxic dye materials are promising due to their uniqueness. In this study, aluminum-doped copper zinc ferrite, Cu 0.4 Zn 0.6-x Al x Fe 2 O 4 (x = 0.0, 0.2, 0.4, 0.6), a catalyst for toxic dye degradation is synthesized through chemical co-precipitation route. The formation of the spinel ferrite catalyst is initially confirmed by Fourier transform infrared spectra, which shows the frequency of metal-oxygen bond vibration at 539 and 427 cm −1 attributed to the tetrahedral and octahedral sites respectively. Higher intensity sharp peak of X-ray diffraction for (311) plane is the evidence for the phase purity and the formation of spinel ferrite. The crystallite size is found to decrease with the increase of Al 3+ ion.The surface structure of the obtained particles is investigated using a scanning electron microscope. Analyses of the material's magnetic characteristics using a vibrating sample magnetometer (VSM) revealed that it is, in fact, a soft magnet, as evidenced by the loop of its hysteresis, which is narrow. The catalytic degradation of methylene blue dye under the mechanism of the photo-Fenton process is studied with the obtained spinel ferrites and the result is found to be as high as 96.5%. The process follows pseudo-second order kinetics and the Langmuir isotherm.

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Spinel nanoferrite (CoFe2O4): The impact of Cr doping on its structural, surface morphology, magnetic, and antibacterial activity traits

Cited by 30 publications

References 20 publications

Magnetic, Electric, and Antimicrobial Properties of Chromium‐ Doped Cobalt Zinc Ferrite Nanoplates

Magnetic, Electric, and Antimicrobial Properties of Chromium‐ Doped Cobalt Zinc Ferrite Nanoplates

Improved Photocatalytic and Antibacterial Activity of Mg_0.33Ni_0.33Co_0.33Gd_xFe_2‐xO₄ Nanoparticles Synthesized via the Co‐precipitation Method

Catalytic degradation of toxic organic dye using an aluminum‐doped Cu_0.4Zn_0.6‐xAl_xFe₂O₄ (x = 0.0, 0.2, 0.4, 0.6) spinel ferrite in a photo‐Fenton system

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Spinel nanoferrite (CoFe2O4): The impact of Cr doping on its structural, surface morphology, magnetic, and antibacterial activity traits

Cited by 30 publications

References 20 publications

Magnetic, Electric, and Antimicrobial Properties of Chromium‐ Doped Cobalt Zinc Ferrite Nanoplates

Magnetic, Electric, and Antimicrobial Properties of Chromium‐ Doped Cobalt Zinc Ferrite Nanoplates

Improved Photocatalytic and Antibacterial Activity of Mg0.33Ni0.33Co0.33GdxFe2‐xO4 Nanoparticles Synthesized via the Co‐precipitation Method

Catalytic degradation of toxic organic dye using an aluminum‐doped Cu0.4Zn0.6‐xAlxFe2O4 (x = 0.0, 0.2, 0.4, 0.6) spinel ferrite in a photo‐Fenton system

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Improved Photocatalytic and Antibacterial Activity of Mg_0.33Ni_0.33Co_0.33Gd_xFe_2‐xO₄ Nanoparticles Synthesized via the Co‐precipitation Method

Catalytic degradation of toxic organic dye using an aluminum‐doped Cu_0.4Zn_0.6‐xAl_xFe₂O₄ (x = 0.0, 0.2, 0.4, 0.6) spinel ferrite in a photo‐Fenton system