Structural, electrical, and optomagnetic tweaking of Zn doped CoFe2−Zn O4− nanoparticles

Agrawal, Shraddha; Parveen, Azra; Azam, Ameer

doi:10.1016/j.jmmm.2016.04.059

Cited by 65 publications

(18 citation statements)

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“…Spinel ferrites have been extensively studied for several decades because of their versatile and promising magnetic, optical, electrical, and chemical properties, which oen vary from their bulk counterpart. 1,2 Some important applications (including magnetic sensors, catalysis, MRI imaging, supercapacitors, and antibacterial agents) attract spinal ferrites. [3][4][5][6][7] Recently, research studies have more focused on the synthesis of spinel ferrites with a general formula of AFe 2 O 4 , where A stands for metals, such as Co, Mg, Zn, Ni, Mn.…”

Section: Introductionmentioning

confidence: 99%

Magnetically separable Zn_1−xCo_0.5xMg_0.5xFe₂O₄ ferrites: stable and efficient sunlight-driven photocatalyst for environmental remediation

et al. 2020

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Section: Introductionmentioning

confidence: 99%

Magnetically separable Zn_1−xCo_0.5xMg_0.5xFe₂O₄ ferrites: stable and efficient sunlight-driven photocatalyst for environmental remediation

et al. 2020

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“…Studies confirmed that doping influences the structural [17], optical [18], electrical [17, 19], infrared radiation properties [20, 21], and magnetic properties [22, 23]. …”

Section: Introductionmentioning

confidence: 99%

Structural, Optical, and Magnetic Properties of Zn-Doped CoFe2O4 Nanoparticles

et al. 2017

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The effect of Zn-doping in CoFe2O4 nanoparticles (NPs) through chemical co-precipitation route was investigated in term of structural, optical, and magnetic properties. Both XRD and FTIR analyses confirm the formation of cubic spinel phase, where the crystallite size changes with Zn content from 46 to 77 nm. The Scherrer method, Williamson-Hall (W-H) analysis, and size-strain plot method (SSPM) were used to study of crystallite sizes. The TEM results were in good agreement with the results of the SSP method. SEM observations reveal agglomeration of fine spherical-like particles. The optical band gap energy determined from diffuse reflectance spectroscopy (DRS) varies increases from 1.17 to 1.3 eV. Magnetization field loops reveal a ferromagnetic behavior with lower hysteresis loop for higher Zn content. The magnetic properties are remarkably influenced with Zn doping; saturation magnetization (Ms) increases then decreases while both coercivity (HC) and remanent magnetization (Mr) decrease continuously, which was associated with preferential site occupancy and the change in particle size.

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“…The correlation between K of CoZn ferrite samples and Zn 2+ ions content is plotted in Fig 17a. Fig.17a relation [68], where M is the molecular weight of ferrite compound sample. ions with nB per ion are 0µB, 3µB and 5 µB [69,70] respectively.…”

Section: Magnetic Properties Of Cozn Ferrite Nano-particlesmentioning

confidence: 99%

“…From Table 2 it can be observed that by increasing concentration of Zn 2+ ions, value of Eg decreases. It has been noticed that there is significant decrease in Eg with Zn 2+ ions which is may be due to increasing the crystallite size [68]. As the crystallite size increases the valance and conduction bands become closer and narrowing Eg.…”

Section: Optical Properties Of Cozn Nanoferro-fluidmentioning

confidence: 99%

Altering the properties of the magnetic Co ferrite nanoparticles fabricated by modified inverse coprecipitation for high-frequency applications

Kershi

Aldirham

2020

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Magnetic Co ferrite nanoparticles doped with non-magnetic ions (Zn2+) fabricated by modified inverse coprecipitation technique. X-ray calculations show that the average crystallite size (D) and the average lattice constant (a) of CoZn ferrite nanoparticles increase from 32.33 to 52.87 nm and from 8.39 to 8.41Ǻ respectively with increasing non-magnetic Zn2+ ions from 0.00 to 0.55. Morphological forms and M-O at A and B sites studied by SEM and FT-IR spectroscopy. Measurements of the structural, optical, electrical and magnetic characterization of the CoZn ferrite nanoparticles strongly depend on non-magnetic Zn2+ ions content (y). Non-magnetic ions transform Co ferrite from hard and dielectric nature to soft and semiconductor nature. Values of Coercivity and the remanence decrease as non-magnetic Zn2+ ions increases to the minimum values 955 Oe and 6 emu /g for the sample with Zn = 0.55. Co0.45Zn0.55Fe2O4 is might be suitable for high-frequency applications where it has the smallest value of optical gap, the largest value of resistivity and the lowest value of dielectric loss factor.

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Structural, electrical, and optomagnetic tweaking of Zn doped CoFe2−Zn O4− nanoparticles

Cited by 65 publications

References 37 publications

Magnetically separable Zn_1−xCo_0.5xMg_0.5xFe₂O₄ ferrites: stable and efficient sunlight-driven photocatalyst for environmental remediation

Magnetically separable Zn_1−xCo_0.5xMg_0.5xFe₂O₄ ferrites: stable and efficient sunlight-driven photocatalyst for environmental remediation

Structural, Optical, and Magnetic Properties of Zn-Doped CoFe2O4 Nanoparticles

Altering the properties of the magnetic Co ferrite nanoparticles fabricated by modified inverse coprecipitation for high-frequency applications

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Structural, electrical, and optomagnetic tweaking of Zn doped CoFe2−Zn O4− nanoparticles

Cited by 65 publications

References 37 publications

Magnetically separable Zn1−xCo0.5xMg0.5xFe2O4 ferrites: stable and efficient sunlight-driven photocatalyst for environmental remediation

Magnetically separable Zn1−xCo0.5xMg0.5xFe2O4 ferrites: stable and efficient sunlight-driven photocatalyst for environmental remediation

Structural, Optical, and Magnetic Properties of Zn-Doped CoFe2O4 Nanoparticles

Altering the properties of the magnetic Co ferrite nanoparticles fabricated by modified inverse coprecipitation for high-frequency applications

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Product

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Magnetically separable Zn_1−xCo_0.5xMg_0.5xFe₂O₄ ferrites: stable and efficient sunlight-driven photocatalyst for environmental remediation

Magnetically separable Zn_1−xCo_0.5xMg_0.5xFe₂O₄ ferrites: stable and efficient sunlight-driven photocatalyst for environmental remediation