In Situ Growth and UV Photocatalytic Effect of ZnO Nanostructures on a Zn Plate Immersed in Methylene Blue

Nanostructures of zinc oxide (ZnO) are considered promising photocatalysts for the degradation organic pollutants in water. This work discusses an situ growth and UV photocatalytic effect ZnO nanostructures on a Zn plate immersed methylene blue (MB) at room temperature. First, surfaces were pretreated via sandblasting to introduce micro-scale roughness. Then, plates MB exposed light, observe nanostructure MB. Scanning electron microscopy, energy dispersive spectroscopy, X-ray diffraction, photoelectron UV-Vis diffuse reflectance spectroscopy used characterize surfaces. We observed stoichiometric crystalline with nano-leaf morphology estimated bandgap 3.08 eV. The was also presence light. average percentage 76% 4 h, rate constant 0.3535 h−1. experimental results suggest that temperature (on surfaces) dye solutions is possible. Furthermore, nanostructured surface can be simultaneously dye.