Effect of Cr3+ substitution on dc electrical resistivity and magnetic properties of Cu0.7Co0.3Fe2−xCrxO4 ferrite nanoparticles prepared by sol-gel auto combustion method

Chandramouli, K.; Suryanarayana, B.; Varma, P. V. S. K. Phanidhar; Raghavendra, Vemuri; Emmanuel, K. A.; Taddesse, Paulos; Murali, N.; Mammo, Tulu Wegayehu; Parajuli, D.

doi:10.1016/j.rinp.2021.104117

Cited by 34 publications

(7 citation statements)

References 50 publications

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“…The SEM micrographs revealed that the prepared samples are well-defined crystals on a nanometer scale with well-distributed and agglomerated in semispherical shape. These results are similar to the result obtained by Song and Liu [28] and Chandramouli et al [29]. 2 shows that all the elements are present without impurities in the samples as per the stoichiometry ratio.…”

Section: Morphological Studiessupporting

confidence: 91%

Effects of Chromium(III) Ion Doping on Structural, Optical, and Magnetic Properties of Nickel–Cobalt Ferrite Nanoparticle

Senbeto

Elangovan

2023

Journal of Nanomaterials

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Chromium(III)-doped nickel–ferrite nanoparticles, with the general formula Ni0.5Co0.5CrxFe2−xO4 (x = 0.0, 0.10, and 0.20), were prepared by the sol–gel method. The prepared samples were sintered at 700°C for 5 hr. The XRD result showed that the prepared samples are in single-phase partially inverse cubic spinel ferrite structures with space group Fd3m. From the XRD characterization, the average crystallite size for all samples decreased from 39.54 to 30.42 nm and the lattice parameters are found to be 0.8324, 0.8320, and 0.8314 nm for x = 0.0, 0.10, and 0.20, respectively. The energy dispersive X-ray (EDX) spectroscopy analysis confirmed the presence of all ions as per the stoichiometric ratios. The vibrating sample magnetometer measurements revealed that the saturation magnetization (Ms), remnant magnetization (Mr), and coercive fields are found to be decreased with increasing concentration of Cr3+ ions. The UV–vis spectroscopy analysis showed that the energy bandgap (Eg) increased with increasing the concentration of Cr3+ ion from 1.61 to 1.96 eV. The Fourier transform infrared spectra show the two main absorption bands at 407–424 cm−1 and 547–588 cm−1 corresponding to stretching vibrations of metal–oxygen in the octahedral and tetrahedral sites, respectively.

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Section: Morphological Studiessupporting

confidence: 91%

Effects of Chromium(III) Ion Doping on Structural, Optical, and Magnetic Properties of Nickel–Cobalt Ferrite Nanoparticle

Senbeto

Elangovan

2023

Journal of Nanomaterials

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“…The material selected were two elements Aluminum in cubic and Titanium in non-cubic system. They their structural properties were studies with the help of X-Ray Diffractometer using CuKα radiation with wavelength λ=540562 A o [16][17][18][19][20][21][22][23]. For the structural determination of cubic and noncubic systems, there are mainly two ways: a) Mathematical and 2) Analytical.…”

Section: Methodsmentioning

confidence: 99%

Structural Identification of Cubic Aluminum and Non-Cubic Titanium using X-Ray Diffractometer

Parajuli

Kaphle

Murali

et al. 2022

J. Lumbini Eng. Coll.

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The unknown crystalline samples like minerals, inorganic compounds etc. are identified mostly with the help of X-ray diffraction (XRD). More than 25 Nobel prizes have been awarded to the works based on it. The identification of the solids are essential for the research in various streams of science like Material, Environmental, Geo, Engineering and Biology. The XRD is based on Bragg’s law. The diffraction pattern obtained after passing the X-ray through interatomic slit is the main source of the structure. It was first demonstrated by Max von Laue (1912). The XRD is now attached with instrumental and computational tools. This paper focus on different steps for the indexing of an X-ray diffraction pattern, identifying the Bravais lattice, and calculating the lattice parameters of the cubic (Al) and non-cubic (Ti) system that are the starting elements we have used for the preparation of MXene. We have used the experimental and mathematical ways for the determinations of the intended structural values. The values obtained were in well agreement with the standard data.

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“…Every spot on the rings denotes a unique instance of the diffraction Bragg's condition being met by the samples' crystal planes. As previously indicated, the high crystalline nature of the generated powdered nano ferrites might be deduced from the fringe or spot depiction of the diffraction rings [27].…”

Section: Tem Analysismentioning

confidence: 71%

Sm-substituted Co-Mn nanoferrites: synthesis, characterization, magnetic properties and photocatalytic degradation of methylene blue

Abu-Elsaad,

Nawara

2023

Phys. Scr.

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An investigation has been performed into the influence of Sm3+ substitution on the structural, optical, and magnetic characteristics of Co0.5Mn0.5SmxFe2–xO4 (x = 0.0-0.1 and x changes at a step of 0.02) and its prospective use as an effective photocatalyst. The examination also explored the potential use of this composition as a proficient photocatalyst. The structural results verified the production of cubic spinel structures in all compositions. The determination of crystallite size has been done via the Williamson-Hall approach, taking into account the influence of strain variables. The ferrite nanoparticles’ spherical form was identified via transmission electron microscopy (TEM) examination. The Co0.5Mn0.5Fe2O4 sample exhibited a particle size distribution of around 40 nm. The optical band gap, ascertained using UV–vis-diffuse reflectance (DRS) spectra analysis, ranged from 1.38 to 1.43 eV. Vibrating sample magnetometer (VSM) analysis revealed that the produced sample was soft magnetic with moderate magnetization (58.18 emu g−1 - 42.73 emu g−1). Methylene Blue (MB) dye’s photocatalytic degradation (PCD) was used to study the photocatalytic behavior while exposed to sunlight. The Sm-doped Co-Mn nanoferrites synthesized in this study exhibit potential for use as effective active photocatalysts in the degradation of toxic industrial dyes. This application promises to enhance safety in both the environmental and healthcare sectors.

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Effect of Cr3+ substitution on dc electrical resistivity and magnetic properties of Cu0.7Co0.3Fe2−xCrxO4 ferrite nanoparticles prepared by sol-gel auto combustion method

Cited by 34 publications

References 50 publications

Effects of Chromium(III) Ion Doping on Structural, Optical, and Magnetic Properties of Nickel–Cobalt Ferrite Nanoparticle

Effects of Chromium(III) Ion Doping on Structural, Optical, and Magnetic Properties of Nickel–Cobalt Ferrite Nanoparticle

Structural Identification of Cubic Aluminum and Non-Cubic Titanium using X-Ray Diffractometer

Sm-substituted Co-Mn nanoferrites: synthesis, characterization, magnetic properties and photocatalytic degradation of methylene blue

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