Nonaqueous Production of Nanostructured Anatase with High-Energy Facets

被引：378

作者：

Wu, Binghui ^{[1
,2
]}

Guo, Changyou ^{[1
,2
]}

Zheng, Nanfeng ^{[1
,2
]}

Xie, Zhaoxiong ^{[1
,2
]}

Stucky, Galen D. ^{[3
]}

机构：

[1] Xiamen Univ, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China

[2] Xiamen Univ, Dept Chem, Xiamen 361005, Peoples R China

[3] Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2008年 / 130卷 / 51期

关键词：

D O I：

10.1021/ja8069715

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Although solution-based synthesis is the most powerful and economic method to create nanostructured anatase TiO2, under those synthesis conditions the {101} facets are the most thermodynamically stable, making it difficult to create anatase nanomaterials with a large percentage of high-energy {001} or {010} facets exposed. Here, we report a facile nonaqueous synthetic route to prepare anatase nanosheets with exposed {001} facets and high-quality rhombic-shaped anatase nanocrystals with a large percentage of exposed {010} facets. Including adscititious water in the nonaqueous synthesis and eliminating the use of carboxylic acid type capping agents are the two keys to integrating the structural diversity from aqueous systems into large-quantity synthesis in nonaqueous systems. The nanostructured TiO2 that we prepared exhibits conspicuous activity in the photocatalytic degradation of organic contaminants.

引用

页码：17563 / 17567

页数：5

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