PREPARATION OF ULTRAFINE POWDERS OF TIO2 BY HYDROTHERMAL H2O2 OXIDATION STARTING FROM METALLIC TI

被引：82

作者：

QIAN, YT ^{[1
]}

CHEN, QW ^{[1
]}

CHEN, ZY ^{[1
]}

FAN, CG ^{[1
]}

ZHOU, G ^{[1
]}

机构：

[1] UNIV SCI & TECHNOL CHINA,STRUCT RES LAB,HEFEI 230026,ANHUI,PEOPLES R CHINA

来源：

JOURNAL OF MATERIALS CHEMISTRY | 1993年 / 3卷 / 02期

关键词：

ULTRAFINE POWDER; HYDROTHERMAL TREATMENT; TITANIA;

D O I：

10.1039/jm9930300203

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：

Ultrafine powders of TiO2 have been prepared by combined hydrothermal H2O2 oxidation. H2O2 oxidation and gel formation were performed at room temperature. Hydrothermal treatment was carried out at 140-degrees-C. Anatase powder was formed in distilled water and rutile powder was formed in 1.0 mol dm-3 nitric acid solution. DTA and XRD data showed that the anatase product transformed into rutile at 950-1000-degrees-C in air. TEM showed that the average sizes of the acicular particles were ca. 10 nm x 3 nm for anatase and ca. 30 nm x 5 nm for rutile.

引用

页码：203 / 205

页数：3

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