Preparation And Properties Research Of Metal Oxide One Dimensional Nano-materials

In recent years, oxide nanostructures, especially one-dimension metal oxides including nanotubes, nanowires, nanorods, nanoribbons and nanobelts have attracted considerable attention in scientific research and technological applications due to their novel properties. The field of one-dimensional(1D) nanotechnology represents an exciting and rapidly expanding research area that crossed the borders between physical, life and engineering sciences.Using three different experimental methods, many shapes like belts of one dimensional structured metal oxides were prepared.Including ZnO,MgO,NiO,PbO,Mn₂O₃,Co₂O₃,CuO,Fe₂O₃,8 kinds of one dimensional structured metal oxides were produced,with SiO₂ as substrate materials and macromolecular metal complex(MMC) as precursors. Such as mixing concentration, mixing uniform level, thermal treatment temperature, thermal treatment time and substrate materials, many influencing factor in the synthesis process had been studied.In this research, we show a new method to prepare one dimensional structured metal oxides. It was named as melting point method. By one step thermal treatment process, metal zinc transformed to zinc oxide(ZnO) nanoblets like needle were composited at 600℃, the length is about 10μm,and the thickness is about 30～50nm. Results show that 600℃is the best thermal treatment temperature point and progressive thermal treatment process is the most appropriate.Such as thermal treatment temperature, thermal treatment time and heating-up rate and heating-up way, many influencing factor in the synthesis process had been researched. Using mental Zn coated by ZnO nano-crystals as substrate materials and precursors composited by zinc ion and PVA, after one step thermal treatment process at 600℃for about 2h, nanograss structured ZnO with uniform shapes were prepared successfully. By operating AFM, we have done some preliminary research work to study the mechanical property of single one dimensional structured ZnO. Many special mechanical properties, being different to macroscopic structures, were showed to us.Luminescent properties of the ZnO nano-materials in many shapes made by this method showed in this paper were researched by photoluminescence spectra. But every production examples prepared by 3 different ways shows the same green lighting color.In the presence of 3D softwares, the reaction mechanism of synthesis of one dimensional structured metal oxides was discussed. After that, we show a production-line model to product one dimensional structured ZnO.