The MnFe2O4 phase on silica and GO was analyzed using high-angle XRD instrument (Miniflex 600, Rigaku, Tokyo, Japan). The textural features of two supports were measured using the N2 adsorption technique (ASAP-2020 plus, Micromeritics, Norcross, GA, USA). The morphological variations of manganese ferrite nanoparticles over the silica and GO support was investigated using transmission electron microscopy (TEM, JEM2100F, JEOL, Tokyo, Japan). The sample preparation procedure was described in our previous publication [14 (link)]. The superparamagnetic properties of the two composites were analyzed using vibrating sample magnetometer (VSM), LDJ electronics, 9600, Troy MI, USA. The ferrite nanoparticle chemical coordination was analyzed using DRS-UV-visible spectroscopy analysis (JASCO V-750, Tokyo, Japan).
Free full text: Click here