Introduction Zn-containing electric arc furnace dust (EAFD), a solid waste produced during steelmaking process, contains many valuable metals, such as Fe, Zn, Mn, Ca, etc. (Kukurugya et al., 2015; Wang et al., 2016b). And the dust is classified as hazardous wastes according to the US Environmental Protection Agency because of the presence of Cr, Pb, etc. (Ann M. Hagni et al., 1991; Wang et al.,...

To be able to regulate anionic oxygen position in ferrites, an original compositing method is developed by introducing a porous p-type phase the n-type matrix of ferrite spinel semiconductors. A result this synergetic effect enhanced mass and charge transport, that impacted morphology within MgFe2O4 structure. Our hypothesis fine tuning ferrites allows us their physicochem...

Cu and Ni ferrites as the semiconductor materials were synthesized by a microwave sol-gel auto-combustion method. Two cationic surfactants, sodium dodecyl sulfate (SDS) and cetyltrimethylammonium bromide (CTAB), were applied and the influence of surfactants on the properties of the Cu and Ni ferrite particles was studied. The samples were characterized by X-ray powder diffraction (XRD) pattern,...

The spinel ferrites are famous due to their unique electrical and magnetic performance. current inspection is about the features of Holmium (Ho) substituted Co-Zn-ferrites (Co0.6Zn0.4HoxFe2−xO4; where x = 0.0 0.1). Single-phase cubic configuration prepared was perceived from X-ray diffraction data. sample has one order larger direct (dc) resistivity as compared un-substituted sample. substituti...

Temperature- and humidity-sensing properties were evaluated of NixMg1-x spinel ferrites (0 ≤ x 1) synthesized by a sol-gel combustion method using citric acid as fuel nitrate ions oxidizing agents. After the exothermic reaction, amorphous powders calcined at 700 °C followed characterization with XRD, FTIR, XPS, EDS Raman spectroscopy FESEM microscopy. Synthesized tested humidity- temperature-se...

Spinel ferrites (NixFe3-xO4; x = 0.25, 0.5, 0.75 and 1.0) have been prepared at 550ºC by egg white auto-combustion route using characterized physicochemical (TGA, IR, XRD, SEM) electrochemical (CV Tafel polarization) techniques. The presence of characteristic vibration peaks in FT-IR reflection planes XRD spectra confirmed the formation spinel ferrites. oxides were transformed into oxide film o...