Sol-hydrothermal preparation and photocatalysis of titanium dioxide

被引：85

作者：

Su, C ^{[1
]}

Tseng, CM

Chen, LF

You, BH

Hsu, BC

Chen, SS

机构：

[1] Natl Taiwan Inst Technol, Inst Organ & Polymer Mat, Taipei 106, Taiwan

[2] Natl Taiwan Inst Technol, Grad Inst Environm Planning & Management, Taipei 106, Taiwan

来源：

THIN SOLID FILMS | 2006年 / 498卷 / 1-2期

关键词：

titanium dioxide; sol-hydrothermal; nanostructures;

D O I：

10.1016/j.tsf.2005.07.123

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanosized TiO2 with controlled crystal phase/structure was prepared by a sol-hydrothermal process using titanium (IV) n-butoxide as a precursor of TiO2. After hydrothermal processing at 200 degrees C for I h, the granulous anatase phase with average crystal size of 5 nm was formed. Upon increasing the heat treatment period to more than 5 h, the rod-like rutile phase with particle size of 19 x 70 nm became predominant. The structure evolution from X-ray diffraction (XRD), particle size/morphology from transmission electron microscopy (TEM), surface area from Brunauer-Emmitt-Teller (BET) analysis, and photocatalytic activity of TiO2 products show strong correlation with the hydrothermal conditions. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：259 / 265

页数：7

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