Biomimetic synthesis and characterization of mesoporous titanium dioxide

被引：5
作者：
Zhao, Hongshi
He, Wen [1 ]
Feng, Yingjun
Xingtao, Jia
Zhang, Xudong
Li, Zhengmao
Yan, Shunpu
Zhou, Weijia
机构：
[1] Shandong Inst Light Ind, Dept Mat Sci & Engn, Jinan 250353, Shandong, Peoples R China
[2] S China Univ Technol, Coll Mat Sci & Engn, Biomat Res Ctr, Guangzhou 510640, Peoples R China
来源：
CHEMICAL ENGINEERING & TECHNOLOGY | 2007年 / 30卷 / 08期
关键词：
adsorption; biosurfactants; desorption; mesoporous materials; sol-gel;
D O I：
10.1002/ceat.200700104
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Mesoporous titanium dioxide (TiO2) 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 degrees 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 TiO2.
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收藏
页码：1010 / 1013
页数：4
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