Facile Synthesis and Morphology‐Dependent Photocatalytic Activity of ZnO Nanostructures

Abstract

Abstract The structures of ZnO nanoparticles (NPs) of different morphology (rod, flower, and grains) using Zinc chloride and zinc nitrate synthesis are carried out under ambient conditions. In this investigation, we report that ZnO NPs are effectively synthesized and exploited to exhibit the morphological effect of ZnO NPS on its reduction in photocatalytic methylene blue (MB) dye‐degradation. UV–Visible spectra studies of the prepared ZnO NPs confirm the absorption peak at 377, 376.3, and 376 nm representative of the formation of ZnO NPs. Powder X‐ray diffraction (XRD) results demonstrate that the strong, highly intense, and narrow‐width diffraction peaks indicate the most stable crystalline hexagonal (Wurtzite) structure of ZnO NPs of rod, flower, and grains with average size about 20, 16.62, and 18.02 nm in diameter, respectively. According to field emission‐scanning electron microscopy (FE‐SEM), results confirm the development of ZnO NPs. In addition, the degradation efficiency of MB dye by ZnO (grain) reveals larger enhancement than the rod and flower with the highest adsorption of color after 0.067 min −1 .This study offers the mainstep forward in the field of diluted wastewaters in textile industries.