SYNTHESIS OF MICROPOROUS SILICA USING METAL HYDROXIDES AS TEMPLATES
Abstract
The template method for the synthesis of microporous silica gels has been developed. It has been shown that rapid deposition of silica gel from Na2SiO3 solution containing the necessary amount of aluminium or iron salt (5% wt.) formed microporous silica. On the contrary, silica gel samples obtained by mechanical mixing of silica gel and the metal hydroxide possess micromesoporous structure.
The effect of salt template nature on structural parameters of silica gel has been studied. It has been shown that the effect of the salt templates depends on the hydration heat of the ions. concentration of the template in gel composition and drying temperature.
The effect of salt template nature on structural parameters of silica gel has been studied. It has been shown that the effect of the salt templates depends on the hydration heat of the ions. concentration of the template in gel composition and drying temperature.
About the Authors
V. S. Komarov
Institute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus
Russian Federation
Academician, D. Sc. (Chemistry), Professor, Leading Researcher of Laboratory of adsorbents and adsorption processes
Russian Federation
Academician, D. Sc. (Chemistry), Professor, Leading Researcher of Laboratory of adsorbents and adsorption processes
S. V. Besarab
Institute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus
Russian Federation
Master of chemical sciences, Senior Researcher of Laboratory of adsorbents and adsorption processes
Russian Federation
Master of chemical sciences, Senior Researcher of Laboratory of adsorbents and adsorption processes
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