Synergistic Photocatalytic Removal of Methyl Orange Using Ni-Substituted BiFeO₃ Nanostructures under UV Irradiation
Subject Areas :
Razieh Khoshnood
1
,
sadaf Fathi
2
1 -
2 -
Keywords: photocatalyst, Bi-Ni Nano ferrites, méthyl orange, sol-gel.,
Abstract :
Methyl orange dye is a stable, non-degradable, and water-soluble compound, and its removal from the environment is possible with conventional water treatment methods. In this study, bismuth ferrite nanoparticles substituted with nickel BiFe1-x NixO3 (x= 0.00, 0.01, 0.03 & 0.05) were synthesized by the sol-gel method. This research was conducted to investigate the photocatalyst effect of bismuth ferrite nanoparticles in the degradation of methyl orange (MO) dye. The characteristics of the nanoparticles were determined by scanning electron microscopy (SEM), Fourier transform infrared (FT-IR), and X-ray diffraction (XRD) analysis—with Methyl orange dye as a pollutant in this study. The selection and effect of different parameters in the photocatalytic degradation of methyl orange dye, including dye concentration, pH, the number of nanoparticles, and the irradiation time, were investigated and optimized. The findings of the research show the effectiveness of bismuth ferrite nanoparticles in the destruction of metallic orange color with a concentration of 3 mg/liter, solution pH 2, number of nanoparticles 0.1 g, and irradiation time of 120 minutes under a mercury lamp. The percentage of destruction of metallic orange color for nanoparticles (x= 0.00, 0.01, 0.03 & 0.05) BiFe1-x NixO3 are: 60.48, 74.44, 76.33 and 75.82, respectively.
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