The multi-staged formation process of titanium oxide nanotubes and its thermal stability |
| |
Authors: | Wenjiang Li Tao Fu Fei Xie Shaofeng Yu Sailing He |
| |
Affiliation: | Centre for Optical and Electromagnetic Research, State Key Laboratory for Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, PR China State Key Laboratory of Heavy Oil Processing, CNPC Key Laboratory of Catalysis, China University of Petroleum, Dongying 257061, PR China |
| |
Abstract: | The multi-staged formation process of titanium oxide nanotubes was investigated in detail under a hydrothermal treatment. During the synthesis procedure, an intermediate stage (tree-like structures) was observed before the formation of the titanium oxide layered structures. The layered structure of titanium oxide generally was considered to exfoliate directly from raw TiO2 materials through the alkaline hydrothermal treatment. The rolling process of the layered structures of titanium oxide was confirmed by TEM observation after the alkaline hydrothermal treatment for the raw TiO2 materials, followed by washing with 4 M HNO3 aqueous solution. The thermal stability of the tube products was investigated by X-ray diffraction (XRD) and scanning electron microscope (SEM). The result showed that both the morphology and crystal phase of titanium oxide nanotubes could be retained even after calcination at 650 °C. |
| |
Keywords: | TiO2 Nanotube Formation process Intermediate Thermal stability |
本文献已被 ScienceDirect 等数据库收录! |