Exploring CoFe2O4/TiO2 NCs for high-efficiency UV-driven organic dye degradation

Abstract

CoFe₂O₄ NPs, TiO₂ NPs, and CoFe₂O₄/TiO₂ NCs were successfully synthesized and assessed for their photocatalytic performance in the degradation of MB dye under UV light exposure. XRD analysis affirmed the spinel structure of CoFe₂O₄ and the anatase phase of TiO₂. The CoFe₂O₄/TiO₂ composite exhibited the presence of both CoFe₂O₄ and TiO₂ phases without any additional peaks, indicating a successful combination of the two materials. Morphological studies revealed spherical NPs with a typical particle size of 50 nm for CoFe₂O₄, TiO₂ and the CoFe₂O₄/TiO₂ composite. UV-vis absorption spectra of the CoFe₂O₄/TiO₂ nanocomposite showed a significant redshift compared to pure TiO₂ and CoFe₂O₄ NPs. Photocatalytic degradation experiments conducted over 120 minutes under UV light demonstrated CoFe₂O₄/TiO₂ composites revealed significantly boosted photocatalytic activity compared to individual CoFe₂O₄ and TiO₂ NPs. Additionally, the CoFe₂O₄/TiO₂ NCs displayed excellent stability and reusability, maintaining a degradation efficiency of 96.96% even after five cycles.