This report describes the synthesis of an antibacterial material consisting of a gemini quaternary ammonium salt (gemini-QUAT) immobilized on ferrite powder, and its antibacterial activity. A gemini-QUAT containing two pyridinium residues per molecule, 4,4'-[1,3-(2,2-dihydroxylmethyl-1,3-dithiapropane)]bis (1-octylpyridinium bromide), was immobilized on ferrite powder by a reaction between the ...

We report the effect of a polyol-mediated annealing on nickel ferrite nanoparticles. By combining X-ray fluorescence spectroscopy, diffraction, and 57 Fe Mössbauer spectrometry, we showed that whereas as-prepared nanoparticles (NFO) are stoichiometric, annealed ones (a-NFO) not, since Ni 0 -based crystals precipitate. Nickel depletion from spinel lattice reduction in polyol solvent accompanied ...

Herein, excellent non-volatile memory and aqueous battery properties of solution-processable nickel ferrite (NFO) nanomaterial were demonstrated. In the case property, device operates on ±2 V resistive switching voltage shows double valued charge-magnetic flux characteristics. Excellent endurance (103) retention (104 s) with a good window observed for NFO memristive device. The conduction mecha...

Biohydrogen production from wastewater is a new, low cost, sustainable energy development. In this study, dark fermentation, as type of biological biohydrogen, was carried out using NiFe2O4 nanoparticle catalysts. Implementing the Central Composite Design model, operational parameters including temperature, pH, and dosage were optimized. According to spectroscopic microscopic analyses, nanopart...

Magnetoelectric lead-free composite ceramic based on the piezoelecrtic Ba0.85Ca0.15Ti0.9Zr0.1O3 (BCZT) and magnetic NiCo0.02Cu0.02Mn0.1Fe1.8O4−d (NCCMF) has been obtained by solid state method using preliminarily synthesized solid-state precursors. X-ray diffraction measurements, microstructural, magnetic, dielectric, piezoelectric magnetoelectric studies have carried out. Impurity phases were ...