Synthesis, Characterization
and Photocatalytic Studies of Novel SrFe12O19/TiO2/SiO2/GO nanocomposite
Majji Suneetha, Gandham Hima Bindu, Duppati Swapna, Chapa Ramya Kumari, Konathala
Jyothi Priya, Ravi Santhi Goldina and Sanasi Paul Douglas
Res. J. Chem. Environ.; Vol. 29(10); 111-121;
doi: https://doi.org/10.25303/2910rjce1110121; (2025)
Abstract
Sol-gel and Hummers created magnetic SrFe12O19/TiO2/SiO2/GO as a nanocomposite photocatalyst
with a high crystalline TiO2 shell. X-ray diffraction (XRD), Fourier Transform Infrared
Spectroscopy (FTIR), High-resolution transmission electron microscopy (HRTEM), Scanning
electron microscopy (SEM), Ultraviolet-visible diffuse reflectance spectroscopy
(UV-DRS) and Vibrating sample magnetometer (VSM) were utilized to analyze the composite
particles produced.
The findings demonstrate that the SrFe12O19/TiO2/SiO2/GO composite particles that
were formed, were made up of spherical nanoparticles with a diameter of roughly
30 nm with silica serving as covering and fence between GO, titania shells and several
SrFe12O19 small particles with a diameter of around 20 nm serving as cores. It exhibits
a band gap energy. The value is 2.29 eV. Under UV irradiation, the composite photocatalytic
particle's photocatalytic activity was also examined for the breakdown of Rhodamine
B and Methylene Blue under UV light, 100% of the dyes degrade in 60 and 70 minutes
when magnetic composite nanoparticles were present. Using magnetic separation, the
created magnetic composite nanoparticles showed significant photocatalytic efficiency
and could be utilized for remediating contaminated water.
