Study on the Preparation of ZnO/TiO2 Composite Nanostructures and Its Properties

Abstract

The paper used the butyl titanate as the main resource to prepare TiO₂ nano-powder by dry hydrothermal method firstly. Then the TiO₂ samples were used as the main resources to adopt the hydro-thermal method to prepare TiO₂ nano-tube. After that ZnCI₂ and TiO₂ nano-tube were used as the main resources to prepare ZnO/TiO₂ composite nano-structure with the TiO₂ nano-tube as the base by the hydro-thermal method. X-ray diffraction, transmission electron microscope and other methods were used to study the phase, appearance characterization and performance analysis of the products. Also the paper used the photo-catalysis experiment for comparing the decomposing ability of the methyl orange of ZnO/TiO₂ composite nano-structure and pure TiO₂ nano-tube under the ultraviolet light. The results showed that the prepared TiO₂ nano-tubes are even in shape, ZnO in ZnO/TiO₂ composite nano-structure covers evenly on the nano-tube and ZnO/TiO₂ nano composite structure has a better photo-catalytic activity.