Magneto-structural studies of sol–gel synthesized nanocrystalline manganese substituted nickel ferrites

Pandav, R.S.; Patil, R. S.; Chavan, S.S.; Mulla, I.S.; Hankare, P.P.

doi:10.1016/j.jmmm.2016.04.090

Cited by 22 publications

(3 citation statements)

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“…Moreover, the decrease in saturation magnetization of our ferrite samples can be explained on the basis of magnetic moment of metal ions in the samples. Magnetic moment of Nd 3+ ion (3 μ B ) 57 is smaller than that of Fe 3+ ion (5 μ B ), 58 when Fe 3+ ions in nanoparticles spinel Ni 0.6 Zn 0.4 Al 0.5 Fe 1.5 O 4 are partially doped by Nd 3+ ions, the Nd 3+ ions are preferentially occupied the octahedral sites (B-sites), which leads to the decrease in the net magnetic moment of octahedral sites in Ni 0.6 Zn 0.4 Al 0.5 Fe 1.5− x Nd x O 4 with the rise of x . Similar saturation magnetization behavior has been reported for many rare earth doped spinel ferrites.…”

Section: Resultsmentioning

confidence: 91%

Influence of neodymium substitution on structural, magnetic and spectroscopic properties of Ni–Zn–Al nano-ferrites

et al. 2021

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Section: Resultsmentioning

confidence: 91%

Influence of neodymium substitution on structural, magnetic and spectroscopic properties of Ni–Zn–Al nano-ferrites

et al. 2021

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“…The magnetic measurements of a nanostructured ferrite compound solely depend on the chemical composition, crystalline structure, particle size distribution and morphology (34). II.…”

Section: Vsm Analysismentioning

confidence: 99%

A study on microstructure and magnetic properties of nanostructured CoxNi1-xMn0.5Fe1.5O4(x=0,0.25,0.5,0.75,1) spinel ferrites

et al. 2021

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A low-temperature synthesis of novel nanostructured CoxNi1-xMn0.5Fe1.5O4(x=0,0.25,0.5,0.75,1) ferrites was carried out by sol-gel auto-combustion technique. The obtained nanostructured ferrites were investigated by employing the techniques of powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX) and vibrating sample magnetometry (VSM). The XRD diffractograms of the prepared ferrites revealed the formation of a spinel phase with face centered cubic (fcc) structure belonging to Fd- m space group. The average lattice parameter ‘a’ of ferrites exhibited a rise versus a rise in Co2+ concentration in accordance with the Vegard’s law. The SEM investigation of NiMn0.5Fe1.5O4 powder revealed an existence of octahedral-shaped morphology of ferrite grains. The TEM investigation of NiMn0.5Fe1.5O4 powder showed nanostructures of ferrite particles with sizes consistent with the crystallite sizes as estimated by Debye-Scherer’s formula. An EDX spectrum of NiMn0.5Fe1.5O4 powder confirmed its elemental composition. The M-H hysteresis loops recorded by VSM at room temperature revealed a dependence of coercivity (Hc), maximum magnetization (Mmax) and retentivity (Mr) on Co2+concentration. Due to the shape dependence of M-H loops on Co2+ concentration in compounds enabled their candidature for applications in memory devices and magnetic sensors.

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“…However, properties of these ferrite materials are also very sensitive to the starting materials that are used for the composition, method of preparation, the preparation conditions, such as calcining temperature, soaking time, etc. [ 6 ]…”

Section: Introductionmentioning

confidence: 99%

Photodegradation of Dye Pollutants on Nanocrystalline Co Doped Li_0.5Fe_2.5O₄ under UV‐Visible Light Irradiation

Chavan¹,

Jadhav

Kadam³

et al. 2021

Macromolecular Symposia

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The Co doped Li0.5Fe2.5O4 ferrites are successfully prepared by using sol–gel synthetic process. The resulting nanosample is characterized by using XRD and SEM technique. The x‐ray diffraction (XRD) analysis studies clearly suggest the formation of single phase nanomaterials. The SEM analysis indicates the formation of uniform and fine grains like morphology in mixed‐metal oxides. The results of combustion synthesis elucidate that the fuel to oxidizer ratio is the most effective factor for the formation and surface morphology of mixed‐metal oxides. The synthesized Co doped Li0.5Fe2.5O4 ferrite is used for the adsorption studies of methyl orange dye by batch experiments. It is found from the adsorption studies that the removal percentage of Methyl orange is much better. Li0.5Fe2.5O4 particles are good adsorbent materials for removal of methyl orange dyes as compare to the Co doped Li0.5Fe2.5O4 nanopowder. However, the adsorption capacity of Li0.5Fe2.5O4 can be lower by doping with cobalt.

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Magneto-structural studies of sol–gel synthesized nanocrystalline manganese substituted nickel ferrites

Cited by 22 publications

References 18 publications

Influence of neodymium substitution on structural, magnetic and spectroscopic properties of Ni–Zn–Al nano-ferrites

Influence of neodymium substitution on structural, magnetic and spectroscopic properties of Ni–Zn–Al nano-ferrites

A study on microstructure and magnetic properties of nanostructured CoxNi1-xMn0.5Fe1.5O4(x=0,0.25,0.5,0.75,1) spinel ferrites

Photodegradation of Dye Pollutants on Nanocrystalline Co Doped Li_0.5Fe_2.5O₄ under UV‐Visible Light Irradiation

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Magneto-structural studies of sol–gel synthesized nanocrystalline manganese substituted nickel ferrites

Cited by 22 publications

References 18 publications

Influence of neodymium substitution on structural, magnetic and spectroscopic properties of Ni–Zn–Al nano-ferrites

Influence of neodymium substitution on structural, magnetic and spectroscopic properties of Ni–Zn–Al nano-ferrites

A study on microstructure and magnetic properties of nanostructured CoxNi1-xMn0.5Fe1.5O4(x=0,0.25,0.5,0.75,1) spinel ferrites

Photodegradation of Dye Pollutants on Nanocrystalline Co Doped Li0.5Fe2.5O4 under UV‐Visible Light Irradiation

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Photodegradation of Dye Pollutants on Nanocrystalline Co Doped Li_0.5Fe_2.5O₄ under UV‐Visible Light Irradiation