Synthesis, Structural, and Magnetic Characterization of Mn1−x Ni x Fe2O4 Spinel Nanoferrites

Faraz, Ahmad; Saqib, Mudassara; Ahmad, Naveed; Fazal-ur-Rehman, .; Maqsood, Asghari; Usman, Muhammad; Mumtaz, Arif; Hassan, Muhammed A.

doi:10.1007/s10948-011-1212-7

Cited by 25 publications

(17 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The X-ray density is higher than the bulk density due to the presence of pores. The porosity value raises from 5.34 % to 14.55% with increase Cu +2 composition in prepared ferrites; similar trend was observed by other researchers [35,36]. 75emu/gr, which is less than reported bulk nickel ferrite value (50 emu/gr.)…”

Section: Fig 4 Variations Of X-ray Density and Bulk Density With Cu Composition (X)supporting

confidence: 87%

Investigation on Structural, Electrical and Magnetic Properties of Copper Substituted Nickel Nanoferrites

Sridhar¹

2020

Magnetic Oxides and Composites II

View full text Add to dashboard Cite

Ni 1-x Cu x Fe 2 O 4 (0.0 ≤ x ≤1.0) nanoferrites were prepared using citrate-gel auto combustion technique. The effect of Cu substitution on the magnetic properties, dielectric properties as well as structural parameters like lattice constant, hopping length and X-ray density were reported and discussed. The surface morphology and elemental analysis of prepared compositions were examined using SEM and EDAX analysis. Electrical properties such as dc resistivity, drift mobility and Seebeck coefficient were reported as function of temperature and composition, it is explained with hopping mechanism between Fe 2+ Fe 3+ ions and the activation energy was measured in the ferrimagnetic and paramagnetic regions.

show abstract

Section: Fig 4 Variations Of X-ray Density and Bulk Density With Cu Composition (X)supporting

confidence: 87%

Investigation on Structural, Electrical and Magnetic Properties of Copper Substituted Nickel Nanoferrites

Sridhar¹

2020

Magnetic Oxides and Composites II

View full text Add to dashboard Cite

show abstract

“…Further increase of x ≥ 0.60, leads M s to decrease abruptly. Results of the present work can be reasonably compared to that of previous reported work based on Zr-Ni doped Mn ferrites, Zr-Zn doping of SrFe 12 O 19 , and Co ferrites [4,8,9]. This interesting result can be explained from the consideration of Néel's theory and cation distributions to influence the exchange interactions between A and B-sites in the prepared spinel lattice as follows [10].…”

Section: As a Function Of Dopants Zr And Ni Contents Xsupporting

confidence: 84%

Electrical and Magnetic Properties of Zr4+ and Ni2+ Ions Substituted Mn–Cu Spinel Ferrites

Faraz

Ahmad

2011

J Supercond Nov Magn

Self Cite

View full text Add to dashboard Cite

The Mn-Cu nanoferrites of composition Mn 0.5 Cu 0.5 Fe 2 − 2x Ni x Zr x O 4 (0.00 ≤ x ≤ 0.80) were synthesized by incorporating dopant Zr 4+ and Ni 2+ cations via a chemical coprecipitation technique. The single phase of the prepared spinel nanoferrites with particle sizes 15-31 nm was confirmed by XRD. Both electrical and magnetic properties are found to depend on the x contents and explained by considering the Zr 4+ and Ni 2+ cations distribution, displacement of the Fe 3+ ions by dopants, changes in magnetic moment at tetrahedral A site and octahedral B site, Fe 3+ (A)-O 2 -Fe 3+ [B] linkages and extent of the primary superexchange interactions (A)-O-[B] of the Fe 3+ ions on the A and B-sites. DC resistivity, saturation magnetization (M s ), remanence (M r ) and Bohr magneton (n B ) are observed to increase up to x ≤ 0.40, while these parameters fall at relatively higher value of x ≥ 0.60.

show abstract

“…Slight shifts of the V 1 and V 2 peak positions indicate that changes due to the Ni 2+ substitution has slightly affected the metal-oxygen force constants in the tetrahedral and octahedral sites. This can be explained by the very small difference in both the atomic mass and ionic radii of the Cu and Ni ions (Faraz et al 2012). Figure 4 shows the field emission scanning electron micro-graphs (FE-SEM) of the CuFe 2 O 4 and NiFe 2 O 4 nanoparticles.…”

Section: Results Structural Characterization Of Nanoparticlesmentioning

confidence: 99%

Synthesis, Characterization and, the Heavy Metal Removal Efficiency of MFe2O4 (M=Ni, Cu) Nanoparticles

Sezgin¹,

Şahın²,

Yalcin³

et al. 2013

Ekoloji

View full text Add to dashboard Cite

The purpose of the study described in this paper was to compare the removal of the heavy metals zinc, nickel, and copper from synthetic wastewater by using nanoparticles of CuFe 2 O 4 and NiFe 2 O 4 . The nanoparticles of nickel and copper ferrite (CuFe 2 O 4 and NiFe 2 O 4 ) were produced by the PEG assisted hydrothermal method. The structural and morphological characterizations were determined using XRD, FT-IR, and SEM. These nanoparticles were dispersed into synthetic wastewater contaminated with zinc, nickel, and copper. Once they had bound to the heavy metals, they were removed from the water solution using a strong magnet. The metal concentrations of the filtered samples were determined by using atomic absorption spectrophotometry (AAS). Then the heavy metal removal efficiencies and adsorption capacities of the nanoparticles (CuFe 2 O 4 and NiFe 2 O 4 ) were calculated. The removal efficiencies of Cu(II), Ni(II) and Zn(II) by using CuFe 2 O 4 nanoparticles was calculated as 83.50%, 98.85%, and 99.80%, respectively. The removal efficiencies of Cu(II), Ni(II), and Zn(II) by using NiFe 2 O 4 nanoparticles were calculated as 92.55%, 36.56 %, and 99.91%, respectively. The measurements were repeated several times with the same sample and almost the same results were obtained each time. MFe 2 O 4 (M=Ni, Cu) Nanopartiküllerinin Sentezi, Karakterizasyonu ve Ağır Metal Giderim Verimliliği Özet Bu makalede anlatılan çalışmanın amacı sentetik atıksulardan çinko, nikel ve bakır gibi ağır metallerin giderimini CuFe 2 O 4 ve NiFe 2 O 4 nanopartikülleri kullanarak incelemektir. Nikel ve bakır ferrit nanopartiküller (CuFe 2 O 4 ve NiFe 2 O 4 ) PEG-destekli hidrotermal metod kullanılarak sentezlenmiştir. Nanopartiküllerin yapısal ve morfolojik karakterizasyonu için XRD, FT-IR ve SEM kullanılmıştır. Karakterize edilen nanopartiküller çinko, nikel ve bakır içeren sentetik atıksuyun içerisine bırakılmıştır. Ağır metallerin nanopartiküllerle adsorpsiyonunun ardından güçlü bir mıknatıs ile nanopartiküller atıksudan ayrılmıştır. Süzülen atıksu içerisindeki ağır metal konsantrasyonları atomik absorpsiyon spektrofotometresi (AAS) ile belirlenmiştir. Daha sonra kullanılan nanopartiküllerin (CuFe 2 O 4 ve NiFe 2 O 4 ) ağır metal giderim verimleri ile adsorpsiyon kapasiteleri hesaplanmıştır. CuFe 2 O 4 nanopartikülünün Cu(II), Ni(II) ve Zn(II) giderim verimleri sırasıyla %83,50, %98,85 ve %99,80 olarak belirlenmiştir. NiFe 2 O 4 nanopartikülünün Cu(II), Ni(II) ve Zn(II) giderim verimleri ise sırasıyla %92.55, %36.56 ve %99.91 olarak hesaplanmıştır. Deneyler aynı örnekle birçok kez tekrar edilmiş ve benzer sonuçlar elde edilmiştir. Anahtar Kelimeler: ağır metaller, adsorpsiyon, adsorpsiyon kapasitesi, bakır ferrit, nanopartiküller, nikel ferrit. Sezgin N, Sahin M, Yalcin A, Koseoglu Y (2013) Synthesis, Characterization and, the Heavy Metal Removal Efficiency of MFe 2 O 4 (M=Ni, Cu) Nanoparticles. Ekoloji 22(89): 89-96.

show abstract

Synthesis, Structural, and Magnetic Characterization of Mn1−x Ni x Fe2O4 Spinel Nanoferrites

Cited by 25 publications

References 30 publications

Investigation on Structural, Electrical and Magnetic Properties of Copper Substituted Nickel Nanoferrites

Investigation on Structural, Electrical and Magnetic Properties of Copper Substituted Nickel Nanoferrites

Electrical and Magnetic Properties of Zr4+ and Ni2+ Ions Substituted Mn–Cu Spinel Ferrites

Synthesis, Characterization and, the Heavy Metal Removal Efficiency of MFe2O4 (M=Ni, Cu) Nanoparticles

Contact Info

Product

Resources

About