A Hollow Nanostructure of Silicon-Based can be produced by Using Electrospinning process

摘要

In this study, the silicon-base net-like hollow nano-structure were prepared using single-nozzle electrospinning and heat treatment process. Firstly, a precursor solution is prepared by dissolving an appropriate amount of Polyvinylpyrrolidone (PVP) and Tetraethyl orthosilicate (TEOS) in ethanol and spinning the nanofibers using a single -nozzle electrospinning. Secondly, the morphology of electrospinning nanofibers was controlled, the temperature profile was designed to prepare hollow nanofibers, and the morphology and properties of nanofibers were explored. Molding with traditional methods, such as rapid freezing, 3D printing, and sintering. It is almost impossible to prepare fibers with diameters less than 1 μm. The electrospinning technology is simple in its production process and cab increase the hollow, high length, uniform diameter, and diverse components of the nano-fiber. Finally, the characteristic of nanofibers, following instruments were used: Atomic force microscopy (AFM), Field Emission Scanning Electron Microscope (FE-SEM), Transmission electron microscopy (TEM), X-ray Diffract-ion(XRD). The AFM was used to scan the nanofibers, and 3D Graphics was used to explore the surface morphology of fibers. Using FE-SEM and TEM system is to explore the morphology, diameter of nanofibers, and hollow nanofiber. The electrospinning technique followed by subsequent heat treatment is well developed so that we can successfully prepare silicon-based oxide nanofibers with the hollow structure. Thus, the microstructure and morphology of electrostatic spinning silicon-base oxide hollow nanofibers were explored, and also their crystalline properties and crystal structure were identified.