Study on microwave synthesis of MOF-199/TiO2 for photocatalytic degradation of organic dyes

https://doi.org/10.62239/jca.2024.084

Abstract

In this study, we synthesized TiO₂ nanoparticles from titanium slag, and 1,3,5-copper benzene tricarboxylate (MOF-199), MOF-199/TiO₂ composites using the microwave method. The synthesized materials were characterized using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy-energy (SEM), Brunauer–Emmett–Teller (BET) surface area using N₂ adsorption/desorption isotherm methods, and UV–Vis diffusive reflectance spectra. MOF-199 exhibited octahedra morphology and showed a surface area of 1059.366 m²/g. The photocatalytic activity of the obtained materials was examined for Rhodamine B (RhB) degradation under visible light irradiation. The results showed that MOF-199/TiO₂ had higher photocatalytic activity under visible light than both TiO₂ and MOF-199.