Some spinel ferrites, MFe2O4 (M = Cu, Cd and Zn), having submicron grain sizes (0.1–0.7μm) were prepared by sol-gel-selfcombustion and their sensing properties to reducing gases were investigated. The gas sensing characteristics were obtained by measuring the sensitivity as a function of various controlling factors, like operating temperature, composition and concentration of the gas, and final...

The magnetic recoverable ZnO/ZnFe2O4/diatomite (ZZFDT) composite was synthesized by hydrothermal-precipitation method. structure, optical properties and of the composites were characterized different analytical instruments. ZZFDT-1 is composed cubic spinel, hexagonal wurtzite, tetrahedron structure. SEM TEM showed that ZnO ZnFe2O4 particles loaded onto surface diatomite, particle size uniform. ...

Photocatalysis is a promising technology for the degradation of recalcitrant organic pollutants in water. In this study, superparamagnetic zinc ferrite nanoparticles (ZnFe2O4) were synthesized and characterized using scanning electron microscopy, X-ray diffraction, energy dispersive Fourier transform infrared spectroscopy. The (NPs) ZnFe2O4 observed to have photosensitive nature showed characte...

In this paper, Reduced Graphene Oxide (rGO)/ZnFe2O4 (rZnF) nanocomposite is synthesized by a simple hydrothermal method and employed as counter electrode (CE) material for tri-iodide redox reactions in Dye sensitized solar cells (DSSC) to replace the traditional high cost platinum (Pt) CE. X-ray diffraction analysis High resolution Transmission electron microscopy, clearly indicated formation o...

Microwave heating of waste electric arc furnace dust (EAFD) for the purpose its remediation has been studied extensively. However, these studies considered EAFD as a bulk material without addressing either relative response individual constituents or specific interactions with magnetic fields an electromagnetic wave. In this work, we present study contribution wave components to using separated...

In this study, the performance of ZnFe2O4-Fe2O3 heterostructure was tested for photocurrent generation via photoelectrochemical activity under irradiation. Additionally, effect photoanode on structural, optical properties, and charge kinetic behavior photoelectrode investigated. A combination nanostructures exhibited an enhanced ability light absorption compared to that pristine Fe2O3 ZnFe2O4 s...

Zn, K, and Cu effects on the structure and surface area and on the reduction, carburization, and catalytic behavior of Fe–Zn and Fe oxides used as precursors to Fischer–Tropsch synthesis (FTS) catalysts, were examined using X-ray diffraction, kinetic studies of their reactions with H2 or CO, and FTS reaction rate measurements. Fe2O3 precursors initially reduce to Fe3O4 and then to metallic Fe (...