Ferrous sulfate based low temperature synthesis and magnetic properties of nickel ferrite nanostructures

Tejabhiram, Y.; Pradeep, R.; Helen, A.T.; Gopalakrishnan, C.; Ramasamy, C.

doi:10.1016/j.materresbull.2014.09.035

Cited by 15 publications

(5 citation statements)

References 21 publications

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“…The diffraction peaks at 2 θ = 30.38°, 35.79°, 43.42°, 53.87°, 57.39°, and 63.05° are attributed to (220), (311), (400), (422), (511), and (440) planes, respectively. The XRD pattern of the as‐prepared nanocatalyst is in agreement with published reports . Figure b shows the XRD pattern of silica coated on the surface of nickel ferrite nanoparticles.…”

Section: Resultssupporting

confidence: 88%

“…[37] As seen in NiFe/Si/Au FT-IR spectra, gold nanoparticles do not exhibit absorption in the reports. [38] Figure 2b shows the XRD pattern of silica coated on the surface of nickel ferrite nanoparticles. Because of this pattern, XRD pattern of NiFe/Si is similar to that of nickel ferrite nanoparticles, meaning the structure of nickel ferrite nanoparticles was maintained after modification with SiO 2 .…”

Section: Characterization Of the Magnetic Nanocatalystmentioning

confidence: 99%

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Novel NiFe/Si/Au magnetic nanocatalyst: Biogenic synthesis, efficient and reusable catalyst with enhanced visible light photocatalytic degradation and antibacterial activity

Shirzadi‐Ahodashti

Ebrahimzadeh

Amiri

et al. 2020

Applied Organom Chemis

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The aim of this paper is to biosynthesize NiFe2O4/SiO2/Au (NiFe/Si/Au) magnetic nanocatalyst using the sonochemical method. This is the first study to synthesize this compound using this method. To obtain optimum morphology and size of products, the synthesis was performed in the presence of polyvinylpyrrolidone, maltose, glucose, and fructose as capping agents and Crataegus pentagyna leaf extract and NaBH4 as reducing agents. Vibrating‐sample magnetometer, field‐emission scanning electron microscopy, Fourier‐transform infrared, transmission electron microscopy, X‐ray diffraction, energy‐dispersive X‐ray spectroscopy, and differential reflectance spectroscopy techniques were performed to confirm the preparation of magnetic products. The as‐synthesized magnetic samples were used to enhance the photocatalytic degradation and antibacterial activity. The NiFe/Si/Au nanocatalysts exhibited an excellent photocatalytic activity by degradation of rhodamine b, methylene blue, and erythrosine as organic contaminants under ultraviolet and visible light irradiation. The degradation curves illustrate that the degradation of anionic dyes is more than that of cationic dyes. In addition, antibacterial activity of as‐prepared nanocatalyst against seven bacterial species was investigated. Because of their antibacterial effects, as‐synthesized products show a high antibacterial activity against various bacteria. Consequently, the NiFe/Si/Au nanocatalysts with high antibacterial activity and excellent potential photocatalyst activity can be used in environmental and medical sciences for wastewater treatment.

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Section: Resultssupporting

confidence: 88%

Section: Characterization Of the Magnetic Nanocatalystmentioning

confidence: 99%

Novel NiFe/Si/Au magnetic nanocatalyst: Biogenic synthesis, efficient and reusable catalyst with enhanced visible light photocatalytic degradation and antibacterial activity

Shirzadi‐Ahodashti

Ebrahimzadeh

Amiri

et al. 2020

Applied Organom Chemis

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“…Since, the oxidation potential of Co 2+ is much lower than that of Fe 2+ , so Co 2+ remains same in the reaction. It is worth mentionable here that the use of the ferrous salt over ferric salt is advantageous as the oxidation of Fe 2+ (unstable state) to Fe 3+ (stable state) results excess Gibbs free energy, which favours the growth of crystalline cobalt ferrite at low temperature and at short reaction time [21,22]. As mentioned in the synthesis, the similar reaction procedures were followed for other two extreme cases also, where, the only difference was the concentration of oleic acid.…”

Section: Effect Of Oleic Acid Concentrationmentioning

confidence: 99%

Fatty acid as structure directing agent for controlled secondary growth of CoFe2O4 nanoparticles to achieve mesoscale assemblies: A facile approach for developing hierarchical structures

Saikia

Kaushik

Sen

et al. 2016

Applied Surface Science

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“…These spinel nanomaterials or ferrites with cations in their tetrahedral and octahedral sites are used as soft magnetic materials in everyday life [1][2][3]. On changing their internal with doping can make them applicable in more advanced devices.…”

Section: Introductionmentioning

confidence: 99%

DC Electrical Resistivity and Magnetic Properties of Co Substituted NiCuZn Nano Ferrite

Jayadev

Raju²,

Murali

et al. 2021

Preprint

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Co substituted Ni0.3-xCoxCu25Zn0.45Fe2O4 (x = 0, 0.05, 0.1, 0.15 and 0.2) samples is synthesized using the sol-gel auto-combustion process. X-ray diffraction shows its cubic spinel structure. The lattice constant decreases as the Co content increases. The sizes of the crystallites are in the range of 20.18–26.24 nm. The wavenumbers of tetrahedral and octahedral sites sighted in the FTIR spectra are similar to that of the precursor. The increment on the Co content increases the DC conductivity. The electrical resistivity decrease with increase in the temperature, i.e. it has a negative temperature coefficient with resistance similar to semiconductors. The remnant ratios R obtained from VSM show their isotropic nature forming single domain ferrimagnetic particles. The resultant material is widely significant, as indicated by its result.

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Ferrous sulfate based low temperature synthesis and magnetic properties of nickel ferrite nanostructures

Cited by 15 publications

References 21 publications

Novel NiFe/Si/Au magnetic nanocatalyst: Biogenic synthesis, efficient and reusable catalyst with enhanced visible light photocatalytic degradation and antibacterial activity

Novel NiFe/Si/Au magnetic nanocatalyst: Biogenic synthesis, efficient and reusable catalyst with enhanced visible light photocatalytic degradation and antibacterial activity

Fatty acid as structure directing agent for controlled secondary growth of CoFe2O4 nanoparticles to achieve mesoscale assemblies: A facile approach for developing hierarchical structures

DC Electrical Resistivity and Magnetic Properties of Co Substituted NiCuZn Nano Ferrite

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Ferrous sulfate based low temperature synthesis and magnetic properties of nickel ferrite nanostructures

Cited by 15 publications

References 21 publications

Novel NiFe/Si/Au magnetic nanocatalyst: Biogenic synthesis, efficient and reusable catalyst with enhanced visible light photocatalytic degradation and antibacterial activity

Novel NiFe/Si/Au magnetic nanocatalyst: Biogenic synthesis, efficient and reusable catalyst with enhanced visible light photocatalytic degradation and antibacterial activity

Fatty acid as structure directing agent for controlled secondary growth of CoFe2O4 nanoparticles to achieve mesoscale assemblies: A facile approach for developing hierarchical structures

DC Electrical Resistivity and Magnetic Properties of Co Substituted NiCuZn&nbsp;Nano Ferrite

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DC Electrical Resistivity and Magnetic Properties of Co Substituted NiCuZn Nano Ferrite