AI Article Synopsis
- Two series of ZnFeO cubic spinel nanoparticles were synthesized using coprecipitation, with the second series incorporating microwave radiation to enhance reactions.
- Techniques like XRD, Mössbauer spectroscopy, and magnetometry were utilized to confirm the nanoparticles' cubic structure and their superparamagnetic characteristics.
- Microwave heating significantly affected the mean coherent length of the particles, but had a smaller impact on their overall size and BET surface area.
Article Abstract
Two series of ZnFeO mixed cubic spinel nanoparticles were prepared by a coprecipitation method, where a solution of Fe and Zn was alkalised by a solution of NaOH. While the first series was prepared by a careful mixing of the two solutions, the microwave radiation was used to enhance the reaction in the other series of samples. The effect of the microwave heating on the properties of the prepared particles is investigated. X-ray powder diffraction (XRD), Fe Mössbauer spectroscopy and magnetometry were employed to prove the cubic structure and superparamagnetic behavior of the samples. The particle size in the range of nanometers was investigated by a transmission electron microscopy (TEM), and the N adsorption measurements were used to determine the BET area of the samples. The stoichiometry and the chemical purity were proven by energy dispersive spectroscopy (EDS). Additionally, the inversion factor was determined using the low temperature Mössbauer spectra in the external magnetic field. The microwave heating had a significant effect on the mean coherent length. On the other hand, it had a lesser influence on the size and BET surface area of the prepared nanoparticles.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9457733 | PMC |
| http://dx.doi.org/10.3390/nano12172987 | DOI Listing |
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