Investigations on Magnetic and Photocatalytic Properties of CoYbxFe2-xO4 Nanoparticles
نویسندگان
1 Department of Biomedical Engineering, Al-Khwarizmi College of Engineering, University of Baghdad, Baghdad, Iraq
2 Department of chemistry, College of science, University of Kufa, Al-Najaf, Iraq
3 Dental Technology Department, College of Medical Technology, Al-farahidi University, Baghdad, Iraq
4 Department of Physics, Faculty of Science, University of Kufa, Al-Najaf, Iraq
5 Pharmacy of College, University of Hilla, Babylon, Iraq
6 Chemistry Department, College of Sciences, University of Diyala, Iraq
doi
10.22052/JNS.2025.02.030چکیده
Yb3+ substituted CoFe2O4 nanoparticles were synthesized through sol-gel auto-combustion method. Structural investigation using X-ray diffraction (XRD) patterns confirmed the good incorporation of Yb3+ ions into spinel phase of CoFe2O4. Room temperature dependence of magnetic behaviors on concentration of Yb3+ in CoFe2O4 structure was studied using vibrating sample magnetometer (VSM). Photocatalytic enhancement was achieved by exchange interaction of Yb3+ with crystalline structure of CoFe2O4. The photocatalytic activity of the synthesized CoYbxFe2-xO4 nanoparticles was studied by degradation of methyl orange (MO) under visible light irradiation. The degradation level of MO solution approached to 91.3% after 105 min illumination over CoYb0.1Fe1.9O4 nanoparticles. The photocatalytic reactions were conducted at different experimental conditions to investigate the influence of photocatalyst amount and pH of dye solution on the photocatalytic efficiency of the synthesized CoYbxFe2-xO4 nanoparticles. The reusability potential was studied at 7 consecutive reaction cycles, which revealed the great stability of the synthesized nanoparticles. Also, the performed photocatalytic degradation in the presence of different radical scavenging agents showed that the hydroxyl radicals are the dominant oxidative species for the degradation of MO solution.
