Structural, magnetic, electrical and catalytic activity of copper and bismuth co-substituted cobalt ferrite nanoparticles

Cobalt ferrite, copper and bismuth co-substituted cobalt ferrite nanoparticles are prepared by solution combustion method. The synthesized compounds are authenticated by powder X-ray diffraction, Fourier transform infrared spectroscopy, Scanning electron microscopy-Energy dispersive X-ray analyser a...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2017-02, Vol.28 (3), p.2795-2802
Main Authors: Sumathi, S., Lakshmipriya, V.
Format: Article
Language:English
Subjects:
ACTIVITY
Bismuth
Catalytic activity
Characterization and Evaluation of Materials
Chemistry and Materials Science
Cobalt
Cobalt ferrites
COMBUSTION
Copper
DIELECTRIC CONSTANT
FERRITE
Lattice parameters
Materials Science
Nanoparticles
Optical and Electronic Materials
PARAMETERS
PARTICLES
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Summary:Cobalt ferrite, copper and bismuth co-substituted cobalt ferrite nanoparticles are prepared by solution combustion method. The synthesized compounds are authenticated by powder X-ray diffraction, Fourier transform infrared spectroscopy, Scanning electron microscopy-Energy dispersive X-ray analyser and Vibrating sample magnetometer. Particle size, lattice parameter, saturation magnetization and coercivity as a function of bismuth and copper substitution in cobalt ferrite nano particles are studied. Lattice parameter and dielectric constant are increased due to the substitution of bismuth in cobalt ferrite. Catalytic activity of the synthesized compounds are tested for the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP). The conversion of nitrophenol to amino phenol is achieved in seconds using the substituted cobalt ferrite compounds.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-016-5860-z