Synthesis and microstructure of silica nanotubes via a coaxial electrospinning route

2018 International Conference on Advanced Electronic Materials, Computers and Materials Engineering

材料科学;无线电电子学;计算机科学

Shen, Lulu^1 ; Yao, Yunhong^1 ; Wang, Tianlong^1 ; Jia, Lan^1 ; Chen, Song^1

College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, Shanxi

030024, China^1

关键词: Characteristic peaks;    Coaxial electrospinning;    Hydrogen chloride;    Organic components;    Physicochemical property;    Poly vinyl pyrrolidone;    Sintering process;    Tubular structures;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/439/2/022017/pdf
DOI  :  10.1088/1757-899X/439/2/022017

来源: IOP

【 摘 要 】

In this study, silica nanotubes (SiO2 NTs) were facilely synthesized via a coaxial electrospinning route. The core-sheath paraffin@PVP-SiO2 nanofibers (NFs) were firstly prepared through co-axial electrospinning of a sheath-liquid derived from tetraethoxysilane, ethanol, polyvinyl pyrrolidone and hydrogen chloride and a core-liquid of paraffin oil and then sintered at 600°C to produce SiO2 NTs. The physicochemical property of the SiO2 NTs was characterized by a SEM machine, a TEM machine and a FT-IR machine. SEM and TEM observations showed that SiO2 NTs had the diameter of 2320-568 nm with a shell thickness of 303-25 nm and a hollow and tubular structure. FT-IR spectrum showed that SiO2 NTs had the characteristic peak of Si-O-Si bonds at 1050 cm-1. It was found that the sintering process caused the removal of organic components in paraffin@PVP-SiO2 NFs and the formation of hollow structure in SiO2 NTs.