Synthesis of Ternary
Nanocomposites (Srfe12 O19/Tio2/Zno) By Sol-Gel Method for Application of Pollutant
Abatement of Organic Dye Degradation Studies
Ramya Kumari Chapa, Suneetha M., Jyothi Priya K., Sridevi Chandrakala N., Bulli
Babu T., Padma M. and Sanasi Paul Douglas S.
Res. J. Chem. Environ.; Vol. 29(9); 56-66;
doi: https://doi.org/10.25303/299rjce056066; (2025)
Abstract
The study investigates the creation of a ternary metal oxide nanocomposite (SrFe12O19/TiO2/ZnO)
designed to be an effective and superior photocatalyst. This is concluded by sequentially
embedding semiconductors onto an n-type semiconductor using chemical or sol-gel
methods. The formational and consistency properties of the resulting sample were
analyzed using a range of methods involving X-ray diffraction (XRD), Fourier-transform
infrared (FTIR) spectroscopy, Field emission scanning electron microscopy with Energy-dispersive
spectroscopy (FESEM-EDS), UV-visible spectroscopy, Transmission electron microscopy
(TEM) and Vibrating sample magnetometry (VSM). The photocatalytic activity of the
ternary nanocomposite was evaluated by testing its effectiveness in degrading Methylene
Blue and Rhodamine B dyes under visible light.
Under sunlight, methylene blue and rhodamine B were completely degraded by the nanocomposite
in 60 and 50 minutes respectively. The main reactive species responsible for the
photodegradation under visible light were hydroxyl radicals (•OH) and superoxide
anions (•O2-). Additionally, the small particle size, high catalytic efficiency
and favorable physical and chemical properties of the SrFe12O19/ZnO/TiO2 nanocomposites
contributed to their excellent reusability.
