Salt templates in synthesis of porous structures
The template synthesis of silica gel with varied content of salt template formed during precipitation of silica and organic acid salt additives has been studied. It has been shown that addition of sodium sulfate increases the sorption capacity of silica gel samples (1.5 times) and the surface (2 times). It has been found that adding 1% of sodium citrate enhances sorption capacity of the samples of silica 4-fold, with 2-fold increase of surface. Similar changes have been observed while modifying the structure of montmorillonite in the presence of lithium sulfate, increasing the amount of hydrogen bonds in the solvent (water) structure, thereby causing the formation of loose structure during the clay drying.