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Mesoporous materials functionalized with STA(Silicotungstic acid) have been proved to be efficient catalysts for esterification reactions. In the investigation, impregnation method was applied for the synthesis of STA/MCM-41 catalysts. MCM-41 and STA(Silicotungstic acid) were used to silica source and active material respectively. The active material was loaded by dryimpregnation method after silica source. Molar ratios of catalysts were determined by 1.25, 2.5 and 5% (W/Si). Actually, thisdoi:10.18038/aubtda.357270 fatcat:wziu3kwouzaipgp6hzatwq56vi