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Proceedings of the National Academy of Sciences of Belarus, Chemical Series

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SYNTHESIS OF SILICA GELS WITH SALT TEMPLATE

Abstract

Synthesis of silica gel using salt templates (Na2SO4 and MgSO4) introduced into washed silica in certain amounts, has been studied. It has been shown that increasing the template content in the gel strongly improves sorption capacity of samples during their drying, while the specific surface area decreases. It has been found that MgSO4 template, due to its salting-out action, promotes the formation of the micropore volume in the silica gel porous structure, that increases with the template content, and depending upon sample drying conditions.
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ISSN 1561-8331 (Print)
ISSN 2524-2342 (Online)