Abstract
Two solid acid catalysts, SAC1 and SAC2, with porous structure obtained from mesoporous hard template were synthesized and characterized by Fourier transform infrared spectroscopy, acid-base titration, nitrogen adsorption/desorption, scanning electron microscopy, and their catalytic activity in esterification of carboxylic acid. Acid-base titration showed that these catalysts have acidic concentration of 1.02–1.10 mmol/g. The catalytic test in esterification of 6-bromohexanoic acid with methanol showed that SAC1 with perfluorinated sulfonic acid is catalytically more active than SAC2 with aryl sulfonic acid. In spite of lower acid loading, SAC1 showed a comparable catalytic activity with commercially available solid acid catalyst Amberlyst 15 with higher acid capacity (4.80 mmol/g) due to high acidity and well-defined pore structure. SAC1 could be recycled up to three times without significant loss in activity.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
