Synthesis of nanoscale nickel (II) ferrite and a study of its catalytic and sorption activities towards methyl orange

• DOI: 10.17308/kcmf.2024.26/12221
• Publication Date: 2024-11-20T04:48:34Z
• Authors: Anna A. Meshchery...; Elena V. Tomina; Anh Tien Nguyen; Alexander I. Dmit...
• Keywords: Methyl orange

Nanoscale magnetic spinel ferrites are attracting an increased attention as functional materials for catalysis and sorption. Such catalysts sorbents advantageous due to their chemical stability in aggressive media, thermal stability, a large area of specific surface, high saturation magnetization, which allows using them create magnetically controlled materials. This article presents the results synthesis nickel (II) ferrite nanopowder, its characterization, study catalytic sorption activities towards methyl orange dye. X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning (SEM) were used characterize nanocrystalline NiFe2O4 synthesized by citrate combustion. The was tested catalyst Fentonlike reaction oxidative degradation under UV irradiation l = 270 nm. involved differentiation oxidation during dye on nanoscale catalyst. pollutant ultraviolet presence satisfactorily described pseudo-first-order model, rate constant 0.0191 min–1. degree destruction reached 99% 150 minutes after beginning thereaction. A parallel experiment without addition hydrogen peroxide solution allowed assessing capacity ferrite. After minutes, concentration decreased 7.5% sorption, equilibrium low (0.132 mg/g). indicates that decolorizes mainly according Fenton reaction. considering promising material wastewater treatment deep organic pollutants