Structural and Mössbauer studies of Mn0.5Co0.5Fe2O4ferrites prepared by high energy ball milling and glycolthermal methods

Abdallah, H. M. I.; Moyo, T.; Msomi, J. Z.

doi:10.1088/1742-6596/217/1/012141

Cited by 10 publications

(8 citation statements)

References 12 publications

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“…As one of nanoarchitectured adsorbents for dyes, Mn 0.5 Co 0.5 Fe 2 O 4 nanoparticle is one of important nanomaterials. Many methods were used to prepare Mn 0.5 Co 0.5 Fe 2 O 4 nanoparticle, such as the solvothermal method [50], hydrothermal method [51], the co-precipitation method [52], mechanical milling and glycolthermal process [53], highenergy ball milling [54], However, the processes of the above methods were often complex, especially the pretreatment processes, and most of the methods needed organic matters to disperse metal ions and formed complexes, which would lead to higher preparation costs. The rapid combustion method is a novel, facile, and convenient technique with the unique solution combustion and calcination process, a short pretreatment and a short preparation time, which doesn't need other dispersants, and the production is homogeneous.…”

Section: Introductionmentioning

confidence: 99%

Adsorption characteristics of methyl blue onto magnetic Ni0.5Zn0.5Fe2O4 nanoparticles prepared by the rapid combustion process

et al. 2013

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A rapid combustion process for the preparation of magnetic Mn 0.5 Co 0.5 Fe 2 O 4 nanoparticles was introduced, which was composed of the preparation process of solution, combustion process and calcination process. The structure and properties of the as-prepared product were investigated by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and vibrating sample magnetometer. The results revealed that the volume of absolute alcohol and the calcination temperature were two key parameters for the preparation of Mn 0.5 Co 0.5 Fe 2 O 4 nanoparticles. With the volume of absolute alcohol increasing from 15 to 100 mL, the particle size of Mn 0.5 Co 0.5 Fe 2 O 4 nanoparticles calcined at 400 C for 2 h increased from 18 to 25 nm, and the saturation magnetization increased from 3.4 to 66.3 Am 2 /kg; while with the calcination temperature increasing from 400 to 700 C with 20 mL absolute alcohol, the particle size increased from 20 nm to 47 nm, the saturation magnetizations increased from 13.1 to 66.0 Am 2 /kg, and the specific surface area decreased from 102.99 to 0.13 m 2 /g. The adsorption characteristics of methyl blue (MB) onto Mn 0.5 Co 0.5 Fe 2 O 4 nanoparticles at room temperature were investigated, and the regression equation was found in good agreement with the pseudo-second-order adsorption kinetics model with the initial MB concentrations of 50-200 mg/L; the adsorption equilibrium data of MB onto Mn 0.5 Co 0.5 Fe 2 O 4 nanoparticles at room temperature were analyzed with Langmuir, Freundlich and Temkin models, and the adsorption isotherm was most effectively described by the Temkin model based on the value of the correlation coefficient (0.9931); the effect of pH on the adsorption of MB was examined, and the reusability of Mn 0.5 Co 0.5 Fe 2 O 4 nanoparticles for adsorbing of MB revealed their excellent removal efficiency. HIGHLIGHTS• Magnetic Mn 0.5 Co 0.5 Fe 2 O 4 nanoparticles are prepared via a rapid combustion process. • They show a high methyl blue (MB) absorption capacity at room temperature. • The pseudo-second-order kinetic model can describe the adsorption of MB.• Temkin model can explain the adsorption isotherm of MB onto Mn 0.5 Co 0.5 Fe 2 O 4 nanoparticles.

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Section: Introductionmentioning

confidence: 99%

Adsorption characteristics of methyl blue onto magnetic Ni0.5Zn0.5Fe2O4 nanoparticles prepared by the rapid combustion process

et al. 2013

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“…We have produced Mn 0.1 Sr 0.2 Co 0.7 Fe 2 O 4 fine powder by glycol-thermal process following procedures discussed in reference [3] and investigated the magnetic properties. X-ray diffraction (XRD) measurements were performed on a Phillips diffractometer (type: PW 1710) using CoK α radiation (λ = 1.7903 Å).…”

Section: Methodsmentioning

confidence: 99%

“…Efforts continue to find the best substitutions to improve the properties. We have been interested in the study of Co, Mn and Mg ions in ferrites [2,3]. In the present work, we extend these studies to include substitution by larger Sr ions.…”

Section: Introductionmentioning

confidence: 99%

Mössbauer and magnetic studies of Mn0.1Sr0.2Co0.7Fe2O4 nanoferrite

et al. 2011

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The magnetic properties of Mn 0.1 Sr 0.2 Co 0.7 Fe 2 O 4 nanoferrite with particle size of about 8 nm were investigated using magnetization and Mössbauer spectroscopy measurements. The sample shows a large increase in coercive field from 0.045 kOe at room temperature to about 3.00 kOe at 4 K. Room temperature coercive fields increased with increase in the annealing temperature between 300 • C and 800 • C. Our results show evidence of transformation from single domain to multidomain structure with thermal annealing.

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“…As one of nanoarchitectured adsorbents for dyes, Mn 0.5 Co 0.5 Fe 2 O 4 nanoparticle is one of important nanomaterials. Many methods were used to prepare Mn 0.5 Co 0.5 Fe 2 O 4 nanoparticle, such as the solvothermal method , hydrothermal method , the co‐precipitation method , mechanical milling and glycolthermal process , high‐energy ball milling , However, the processes of the above methods were often complex, especially the pretreatment processes, and most of the methods needed organic matters to disperse metal ions and formed complexes, which would lead to higher preparation costs. The rapid combustion method is a novel, facile, and convenient technique with the unique solution combustion and calcination process, a short pretreatment and a short preparation time, which doesn't need other dispersants, and the production is homogeneous.…”

Section: Introductionmentioning

confidence: 99%

Adsorption characteristics of methyl blue onto magnetic Mn_0.5Co_0.5Fe₂O₄ nanoparticles prepared via a rapid combustion process

Liu

et al. 2018

Env Prog and Sustain Energy

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A rapid combustion process for the preparation of magnetic Mn0.5Co0.5Fe2O4 nanoparticles was introduced, which was composed of the preparation process of solution, combustion process and calcination process. The structure and properties of the as‐prepared product were investigated by X‐ray diffraction, scanning electron microscopy, transmission electron microscopy, and vibrating sample magnetometer. The results revealed that the volume of absolute alcohol and the calcination temperature were two key parameters for the preparation of Mn0.5Co0.5Fe2O4 nanoparticles. With the volume of absolute alcohol increasing from 15 to 100 mL, the particle size of Mn0.5Co0.5Fe2O4 nanoparticles calcined at 400°C for 2 h increased from 18 to 25 nm, and the saturation magnetization increased from 3.4 to 66.3 Am2/kg; while with the calcination temperature increasing from 400 to 700°C with 20 mL absolute alcohol, the particle size increased from 20 nm to 47 nm, the saturation magnetizations increased from 13.1 to 66.0 Am2/kg, and the specific surface area decreased from 102.99 to 0.13 m2/g. The adsorption characteristics of methyl blue (MB) onto Mn0.5Co0.5Fe2O4 nanoparticles at room temperature were investigated, and the regression equation was found in good agreement with the pseudo‐second‐order adsorption kinetics model with the initial MB concentrations of 50–200 mg/L; the adsorption equilibrium data of MB onto Mn0.5Co0.5Fe2O4 nanoparticles at room temperature were analyzed with Langmuir, Freundlich and Temkin models, and the adsorption isotherm was most effectively described by the Temkin model based on the value of the correlation coefficient (0.9931); the effect of pH on the adsorption of MB was examined, and the reusability of Mn0.5Co0.5Fe2O4 nanoparticles for adsorbing of MB revealed their excellent removal efficiency. © 2018 American Institute of Chemical Engineers Environ Prog, 38: S277–S287, 2019

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Structural and Mössbauer studies of Mn_0.5Co_0.5Fe₂O₄ferrites prepared by high energy ball milling and glycolthermal methods

Cited by 10 publications

References 12 publications

Adsorption characteristics of methyl blue onto magnetic Ni0.5Zn0.5Fe2O4 nanoparticles prepared by the rapid combustion process

Adsorption characteristics of methyl blue onto magnetic Ni0.5Zn0.5Fe2O4 nanoparticles prepared by the rapid combustion process

Mössbauer and magnetic studies of Mn0.1Sr0.2Co0.7Fe2O4 nanoferrite

Adsorption characteristics of methyl blue onto magnetic Mn_0.5Co_0.5Fe₂O₄ nanoparticles prepared via a rapid combustion process

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Structural and Mössbauer studies of Mn0.5Co0.5Fe2O4ferrites prepared by high energy ball milling and glycolthermal methods

Cited by 10 publications

References 12 publications

Adsorption characteristics of methyl blue onto magnetic Ni0.5Zn0.5Fe2O4 nanoparticles prepared by the rapid combustion process

Adsorption characteristics of methyl blue onto magnetic Ni0.5Zn0.5Fe2O4 nanoparticles prepared by the rapid combustion process

Mössbauer and magnetic studies of Mn0.1Sr0.2Co0.7Fe2O4 nanoferrite

Adsorption characteristics of methyl blue onto magnetic Mn0.5Co0.5Fe2O4 nanoparticles prepared via a rapid combustion process

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Structural and Mössbauer studies of Mn_0.5Co_0.5Fe₂O₄ferrites prepared by high energy ball milling and glycolthermal methods

Adsorption characteristics of methyl blue onto magnetic Mn_0.5Co_0.5Fe₂O₄ nanoparticles prepared via a rapid combustion process