Synthesis of mesostructured titania with controlled crystalline framework

被引：164

作者：

Luo, HM ^{[1
]}

Wang, C ^{[1
]}

Yan, YS ^{[1
]}

机构：

[1] Univ Calif Riverside, Dept Chem & Environm Engn, Riverside, CA 92521 USA

来源：

CHEMISTRY OF MATERIALS | 2003年 / 15卷 / 20期

关键词：

D O I：

10.1021/cm0302882

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：

A simple synthetic approach to generate thermally stable mesostructured titania with controlled crystalline framework is reported. Large-pore mesoporous titania with pure anatase, rutile, bicrystalline (anatase and rutile), and tricrystalline (anatase, rutile, and brookite) frameworks are successfully synthesized by block copolymer templating method through simply varying the solvent and cosolvent (methanol, ethanol, 1-butanol, or 1-octanol, with or without water). Acidity is believed to determine the crystal structure formation. The crystalline mesoporous titania are characterized by X-ray diffract-ion (XRD), thermogravimetric and differential thermal analysis (TG/DTA), scanning electron microscopy (SEM), transmission electron microscope (TEM), UV-vis absorption spectroscopy, and N-2 adsorption/desorption measurements.

引用

页码：3841 / 3846

页数：6

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