Electrokinetic Characteristics of Bismuth-Containing Materials Based on Porous Glasses

被引：7
|
作者：
Kuznetsova, A. S. [1 ,2 ]
Ermakova, L. E. [1 ]
Anfimova, I. N. [2 ]
Antropova, T. V. [2 ]
机构：
[1] St Petersburg State Univ, St Petersburg 199034, Russia
[2] Russian Acad Sci, Grebenshchikov Inst Silicate Chem, St Petersburg 199034, Russia
来源：
GLASS PHYSICS AND CHEMISTRY | 2020年 / 46卷 / 04期
基金：
俄罗斯基础研究基金会;
关键词：
bismuth-containing materials; porous glass; quartz-like glass; electrokinetic potential; HIGH-SILICA GLASS; SPECTRAL PROPERTIES; LUMINESCENCE; ZINC;
D O I：
10.1134/S1087659620030086
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Bismuth-containing composite materials based on high-silica porous glasses (PGs) of various types are prepared. Their structural parameters and electrokinetic potential in 10(-2)\M KNO(3)solutions in the pH range 1.5-8.5 are studied. The results are compared with the analogous properties of matrices not modified with bismuth oxide, as well as the pH dependence of the zeta-potential for SiO(2)particles and the sols of synthesized and industrial bismuth(III) oxide. It is determined that modification of larger-pore particles not containing secondary silica with bismuth(III) oxide results in the deviation of the form of the zeta-pH dependences from those intrinsic for high-silica PG and SiO(2)particles.
引用
收藏
页码：290 / 297
页数：8
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