Stability of aqueous dispersions of the hydrated titanium dioxide prepared by titanium tetrachloride hydrolysis

被引：18

作者：

Eremenko, BV ^{[1
]}

Bezuglaya, TN ^{[1
]}

Savitskaya, AN ^{[1
]}

Malysheva, ML ^{[1
]}

Kozlov, IS ^{[1
]}

Bogodist, LG ^{[1
]}

机构：

[1] Shevchenko Kiev Univ, Dept Chem, UA-252017 Kiev, Ukraine

来源：

COLLOID JOURNAL | 2001年 / 63卷 / 02期

关键词：

D O I：

10.1023/A:1016673605744

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：

The aggregation stability of aqueous dispersions of the hydrated anatase and rutile samples in the neutral and alkaline pH regions is related to the electrostatic stabilization factor and is described in terms the classical DLVO theory. The abnormally high stability of the dispersions with respect to 1 : 1 and 1 : 2 coagulating electrolytes, which is exhibited in the acidic pH region, is explained by the existence of well-developed gel layers at the particle surfaces. The specific role in the formation of such layers is played by the sulfate ions.

引用

页码：173 / 178

页数：6

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