Biomimetic Synthesis and Characterization of Mesoporous Titanium Dioxide

✍ Scribed by H.-S. Zhao; W. He; Y.-J. Feng; X.-T. Jia; X.-D. Zhang; Z.-M. Li; S.-P. Yan; W.-J. Zhou

• Publisher: John Wiley and Sons
• Year: 2007
• Tongue: English
• Weight: 240 KB
• Volume: 30
• Category: Article
• ISSN: 0930-7516
• DOI: 10.1002/ceat.200700104

✦ Synopsis

Abstract

Mesoporous titanium dioxide (TiO~2~) with a pore size range from 5–7 nm was synthesized by a sol‐gel method using biosurfactant phosphatidylcholines as an organic template. Titanium tetrabutoxide (TBOT) was used as the precursor. A very fine mesoporous structure formed in the particle was maintained after a heat treatment at 700 °C. Low‐angle X‐ray powder diffraction (XRD) and a pore size distribution curve revealed the existence of the mesoporous structure. Transmission Electron Microscopy (TEM) and N~2~ adsorption–desorption isotherms were utilized for further characterization. A significant red shift in the UV‐VIS spectrum of the porous material was observed, which could be explained by the energy band theory. The results confirmed the synthesis of mesoporous TiO~2~.