Synthesis of NiFe2O4/SiO2/NiO Magnetic and Application for the Photocatalytic Degradation of Methyl Orange Dye under UV Irradiation

NiFe2O4/SiO2/NiO magnetic was successfully synthesized using NiFe2O4, SiO2, and NiO as the core, interlayer, shell, respectively. under UV light irradiation used for photocatalytic degradation of methyl orange dye with different pH, catalyst dose, initial concentration. This composite characterized by X-ray Diffraction (XRD), Fourier Transform Infra-Red (FTIR), Scanning Electron Microscopy-Electron Dispersive Spectroscopy (SEM-EDs), Vibrating Sample Magnetometer (VSM), UV-Vis Diffuse Reflectance (UV-Vis DRS), Point Zero Charge (pHpzc). The results showed that is a superparamagnetic material saturation magnetization value 44.13 emu/g. It also has band gap 2.67 eV pHpzc 6.33. optimum conditions were at pH 4; 0.50 g/L 10 mg/L efficiency to 95.76%. in concentrations follows pseudo-first-order, where greater concentration, smaller constant rate (k). After five cycles repeated usage, good catalytic performance well efficient favourable recyclable photocatalyst. Copyright © 2022 Authors, Published BCREC Group. an open access article CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).