The characterization and photocatalytic properties of mesoporous rutile TiO2 powder synthesized through self-assembly of nano crystals

被引：69

作者：

Li, YZ

Lee, NH

Lee, EG

Song, JS

Kim, SJ

机构：

[1] Sejong Univ, Sejong Adv Inst Nano Technol, Seoul 143747, South Korea

[2] Three Gorges Univ, Dept Chem, Hubei 443002, Peoples R China

[3] Chosun Univ, Dept Mat Engn, Kwangju 501759, South Korea

[4] Korea Electrotechnol Res Inst, Elect & Magnet Devices Res Grp, Chang Won, Kyungnam, South Korea

来源：

CHEMICAL PHYSICS LETTERS | 2004年 / 389卷 / 1-3期

关键词：

D O I：

10.1016/j.cplett.2004.03.081

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Mesoporous titania with an average pore diameter of 2.6 nm and rutile crystalline structural wall was prepared by hydrolyzing TiOCl2 aqueous solution at lower temperature by using octyl polyethylene oxide surfactant as template-directing agent. The mesoporous structure of as-synthesized mesoporous rutile titania consisting of self-assembled nano crystals keeps stable after the removal of the surfactant by acetone extraction and following UV irradiation. The mesoporous rutile titania exhibits a good photocatalytic activity for gas-phase photo-oxidation of a mixture of benzene and methanol. A mechanism of self-assembly of nano titania crystals is proposed to explain the formation of mesoporous rutile titania. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：124 / 128

页数：5

共 34 条

[11] Photoredox properties of ultrafine rutile TiO2 acicular powder in aqueous 4-chlorophenol, Cu-EDTA and Pb-EDTA solutions [J].