Synthesize Ni۰.۱Cu۰.۱Zn۰.۸Fe۲O۴ nanoparticles by gel-auto combustion andmicrowave-assisted methods and investigate their photocatalytic activity

Over the past few decades, magnetic nanoparticles have been considered by many researchersdue to their unique physicochemical, magnetic, and optical properties and extensive applicationsin the field of biomedical (such as magnetic resonance imaging (MRI), drug delivery systems, andmagnetic hyperthermia), catalysis, information technology, telecommunication and environmentalremediation, destruction of organic pollutants, etc [۱,۴]. In this work, it has attempted to synthesizeNi۰.۱Cu۰.۱Zn۰.۸Fe۲O۴ by both gel-auto combustion [۵] and microwave-assisted [۶] methods, andproductions were characterized by types of spectroscopic analyses, involving XRD, IR, DRS,SEM, EDS, VSM, and UV-Vis spectra. The effect of samples was investigated on the absorptionand destruction of methyl orange at three different concentrations (۵, ۱۰, and ۱۵ ppm). The averagecrystalline size of MNPs synthesized by gel-auto combustion and MW-assisted, obtained by x-raydiffraction analysis were ۷۷.۹ and ۴۴.۱ nm, respectively. The hysteresis magnetization curvesexhibit the saturation magnetic values which, were ۲۰.۶۴ and ۵۲.۸۹ (emu/g) for MNPs obtainedby gel-auto combustion and MW-assisted, respectively. Finally, both ferrites showed highabsorption of methyl orange dye in water under UV-Vis irradiation (λ> ۴۰۰ nm) but the sampleobtained by the MW-assisted method had better function [۲].

کلیدواژه ها:

Magnetic Nanoparticles ، Photocatalyst ، Gel-auto combustion ، Microwave-assisted