Dual-template Assisted Synthesis of Silica Nanotubes

Title: Dual-template Assisted Synthesis of Silica Nanotubes

Volume: 6 Issue: 3

Author(s): Qiulin Liao, Yexiang Wang, Yong Gao and Huaming Li

Affiliation:

Keywords: Multi-walled carbon nanotubes, poly(ethylene glycol), silica nanotubes, sol-gel process, dual templates, calcination

Abstract: Silica nanotubes were synthesized via sol-gel process using poly(ethylene glycol) functionalized multi-walled carbon nanotubes (MWNT-PEG) as the dual templates. Through the hydrolysis of tetraethoxysilane (TEOS), a continuous coating of silica was deposited over the MWNT surfaces to form core-shell structures. Hollow silica nanotubes were finally obtained by removal of core carbon components through calcination. The as-prepared hollow silica structures were characterized by electron microscopy, energy dispersive X-ray spectrometry and infrared spectroscopy. The synthesized silica nanotubes might find potential applications in many fields such as encapsulation, catalysis, biological separation, and sensing.

Cite this article as:

Liao Qiulin, Wang Yexiang, Gao Yong and Li Huaming, Dual-template Assisted Synthesis of Silica Nanotubes, Current Nanoscience 2010; 6 (3) . https://dx.doi.org/10.2174/157341310791171081