Electrokinetic Characteristics of Bismuth-Containing Materials Based on Porous Glassesстатья
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Дата последнего поиска статьи во внешних источниках: 12 января 2022 г.
Аннотация:Bismuth-containing composite materials based on high-silica porous glasses (PGs) of varioustypes are prepared. Their structural parameters and electrokinetic potential in 10–2 М KNO3 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 SiO2 particles and the sols of synthesized and industrial bismuth(III) oxide. It is determined that modification of larger-pore particles notcontaining secondary silica with bismuth(III) oxide results in the deviation of the form of the ζ–рН dependences from those intrinsic for high-silica PG and SiO2 particles.