MECHANISM OF FORMATION OF TITANIUM-DIOXIDE ULTRAFINE PARTICLES IN REVERSE MICELLES BY HYDROLYSIS OF TITANIUM TETRABUTOXIDE

被引：83

作者：

HIRAI, T

SATO, H

KOMASAWA, I

机构：

[1] Department of Chemical Engineering, Faculty of Engineering Science, Osaka University, Toyonaka

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 1993年 / 32卷 / 12期

关键词：

D O I：

10.1021/ie00024a009

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The mechanism of the formation of titanium dioxide ultrafine particles in reverse micelles by the hydrolysis of titanium tetrabutoxide (TTB) was studied, using sodium bis(2-ethylhexyl) sulfosuccinate (AOT)/isooctane as a reverse micellar solution. The effects of water, TTB, and surfactant concentrations were investigated. The particle formation process was followed by the change of UV-visible absorption spectra. The conditions for the formation of particles were studied, and the particle formation was found to be controlled by the TTB concentration and the number of micelles. A reaction scheme for the particle formation, based on the number of micelles, was proposed, which successfully explained the data for the combined stages.

引用

页码：3014 / 3019

页数：6

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