Photocatalytic properties of \(\textbf{ZnO-TiO}_2\textbf{/g-C}_3\textbf{N}_4\) nanocomposites synthesized by a simple hydrothermal method
DOI:
https://doi.org/10.56764/hpu2.jos.2026.5.02.56-64Abstract
In the present study, a ZnO-TiO₂/g-C₃N₄ composite was successfully prepared by hydrothermal synthesis. XRD results confirmed the successful formation of the composite structure. The surface morphology, as observed by field-emission scanning electron microscopy, revealed that the material predominantly consisted of particles approximately 200 to 300 nm in size, together with a small number of rod-like structures. The UV–Vis spectra indicated that the composite exhibited absorption in the visible-light region. Photocatalytic degradation experiments using DB71 showed that the ZnO-TiO₂/g-C₃N₄ composite synthesized at 120 °C achieved a DB71 degradation efficiency of 27% in aqueous solution under visible-light irradiation. These results suggest that the ZnO-TiO₂/g-C₃N₄ composite has potential for application in the visible-light-driven treatment of DB71-contaminated water.
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