Impact of Green Synthesis on Crystallographic Structure, Optical and Magnetic Properties of Nanocrystalline CoFe2O4

CoFe 2 O 4 nanocrystals were synthesized through chemical co-precipitation using citric acid as the capping agent. Subsequently, a green alternative was accomplished in the synthesis process by replacing the commercially purchased citric acid with naturally available lemon juice. The prepared sample...

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Bibliographic Details
Published inJournal of electronic materials Vol. 52; no. 6; pp. 4045 - 4056
Main Authors Sivanandan, Vibhu T., Prasad, Arun S.
Format Journal Article
LanguageEnglish
Published New York Springer US 01.06.2023
Springer Nature B.V
Subjects
Acids
Characterization and Evaluation of Materials
Chemical synthesis
Chemistry and Materials Science
Citric acid
Citrus fruits
Cobalt ferrites
Coercivity
Crystal structure
Crystallites
Crystallography
Electronics and Microelectronics
Hysteresis
Instrumentation
Magnetic anisotropy
Magnetic measurement
Magnetic properties
Magnetic saturation
Materials Science
Microstrain
Nanocrystals
Nanoparticles
Optical and Electronic Materials
Optical properties
Original Research Article
Parameter estimation
Room temperature
Solid State Physics
Spectrum analysis
Nanoparticles
citric acid
optical direct band gap
spinel ferrites
Rietveld
superparamagnetism
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Summary:CoFe 2 O 4 nanocrystals were synthesized through chemical co-precipitation using citric acid as the capping agent. Subsequently, a green alternative was accomplished in the synthesis process by replacing the commercially purchased citric acid with naturally available lemon juice. The prepared samples were thoroughly characterized using various techniques, and the results were analyzed and the parametric variations in the two samples were compared. Using Rietveld profile refinement of the XRD patterns, the crystallographic parameters associated with both samples were explored and the cation distributions in the tetrahedral and octahedral sites were estimated. Williamson–Hall analysis of x-ray diffraction data provided the effective crystallite size and the microstrain associated with the nanocrystalline samples. The optical direct band gap and the room-temperature magnetic parameters were estimated from UV–visible spectra analysis and vibrating sample magnetometry, respectively. The coercivity, remanent magnetization, and saturation magnetization of both samples were obtained from magnetic hysteresis, and the estimated values for magnetic anisotropy energy revealed that the samples exhibited room-temperature ferrimagnetic behavior. Graphical Abstract
ISSN:0361-5235
1543-186X
DOI:10.1007/s11664-023-10354-5