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Updated: Jun 5, 2026

Preparation of Functional Silica Using a Bioinspired Method
Published on: August 1, 2018
Direct synthesis of acid-base bifunctionalized hexagonal mesoporous silica and its catalytic activity in cascade
Fanpeng Shang1, Jianrui Sun, Shujie Wu
1College of Chemistry, Jilin University, Changchun 130023, PR China.
Abstract:
A series of efficient acid-base bifunctionalized hexagonal mesoporous silica (HMS) catalysts contained aminopropyl and propanesulfonic acid have been synthesized through a simple co-condensation by protection of amino group. The results of small-angle XRD, TEM, and N(2) adsorption-desorption measurements show that the resultant materials have mesoscopic structures. X-ray photoelectron spectroscopies, elemental analysis (EA), back titration, (29)Si NMR and (13)C NMR confirm that the organosiloxanes were condensed as a part of the silica framework. The resultant catalysts exhibit excellent acid-basic properties, which make them possess high activity for one-pot deacetalization-Knoevenagel and deacetalization-nitroaldol (Henry) reactions.
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