Influence of Zinc on the Structure and Morphology of Manganese Ferrite Nanoparticles

Abstract

Nanocrystalline spinel ferrites with general formula of MnxZn1−xFe2O4; x = 1.0, 0.8, 0.6, 0.4, 0.2, 0.1 were prepared via co-precipitation method at 75 °C and pH 11. The XRD results showed that the doping of Zn ions into ferrite’s structure resulted in the reduction of both crystallinity and crystallite size. The results also revealed that the synthesized MnxZn1−xFe2O4 crystalline in spinel cubic structure with particle size range of 13.0 – 22.5 nm. Field emission scanning electron microscopy (FESEM) images showed an increase in particle size with the decreasing Zn content. The types of chemical covalent bonds which existed in the samples were determined via Fourier transforms infrared (FTIR) spectroscopy.

Synthesis and Characterization of Manganese Ferrite (MnFe2O4) Nanoparticles by Coprecipitation Method at Low Temperatures

“…The hkl fields formed include 220, 311, 222, 400, 422, and 511 [12]. The diffraction pattern above shows that the MnFe2O4 nanoparticles are crystals in the cubic process with a spinel structure and the Fd3m space group (JCPDS No 75-0034) [13]. Since the coprecipitation approach is used, the sharpness of the diffraction peaks on the XRD test results graph is noticeable.…”

MnFe2O4/ZrO2 nanocomposite as an efficient magnetically separable photocatalyst with good response to sunlight: preparation, characterization and catalytic mechanism

“…Some other crucial structural parameters, for instance the dislocation density due to ionic stress and stacking fault, were quantified utilizing the equations [44,45]. Besides that, agglomeration that was observed could be due to magnetic properties of the compound [46]. This kind of voids and porous nature is a normal characteristic of combustion-synthesized powders [47].…”