High-Efficiency Photo-Generated Charges of ZnO/TiO₂ Heterojunction Thin Films for Photocatalytic and Antibacterial Performance.

Forming heterostructures based on hybrid photocatalysts has been considered as one of the most effective techniques for improving the photocatalytic efficacy of semiconductor photocatalysts. To address this issue, this article describes ZnO/TiO₂ heterojunction thin films that were produced via the direct current reaction magnetron sputtering technique and with varying thickness of TiO₂ coating. The structural, morphological, and optical features were thoroughly characterized by X-ray diffraction, scanning electron microscope, photoluminescence, and ultra-violet-visible transmission spectra.