One pot facile hydrothermal synthesis of superparamagnetic ZnFe2O4 nanoparticles and their properties
2014
Superparamagnetic ZnFe2O4 nanoparticles were synthesized by facile hydrothermal method using different amount of diethylamine (DEA) as a precipitating agent. The phase formation, morphological and magnetic properties were investigated using X-ray diffraction, field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy and vibrating sample magnetometer. The amount of DEA required for forming single phase ZnFe2O4 was optimized. For 2 ml of DEA, a mixed phase of α-Fe2O3 and ZnFe2O4 was formed whereas single phase of ZnFe2O4 was formed with high crystalline quality for 4, 6, 8 and 10 ml of DEA. FE-SEM results indicated that all the synthesized products were in spherical shape with small aggregations. Particle size of 9 nm was obtained from TEM image for sample synthesized using 10 ml of DEA. Superparamagnetic property was observed for the samples synthesized using 4, 6, 8, and 10 ml of DEA.
Keywords:
- Diethylamine
- Nanoparticle
- Scanning electron microscope
- Superparamagnetism
- Transmission electron microscopy
- Materials science
- Fourier transform infrared spectroscopy
- Analytical chemistry
- Zinc ferrite
- Particle size
- Mineralogy
- Inorganic chemistry
- Chemical engineering
- Hydrothermal circulation
- Nanotechnology
- Hydrothermal synthesis
- Correction
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