Abstract
A highly ordered 2D-hexagonal mesoporous titanium silicate synthesized under moderately basic condition by using a modified synthesis procedure in the presence of a non-ionic surfactant dodecylamine (DDA) as the structure-directing agent (SDA) has been reported. This mesoporous material was characterized by using powder XRD, N 2 adsorption/desorption, TEM, SEM-EDS and spectroscopic studies. UV–vis and 29Si MAS NMR studies suggested the incorporation of isolated tetrahedral Ti(IV) sites in a highly cross-linked silica framework. N 2 sorption analysis revealed good surface area and narrow pore size distribution. This mesoporous titanium silicate efficiently catalyzed the epoxidation of acrylic acid in acetonitrile solvent in the presence of H 2O 2 as oxidant with high-yield and excellent selectivity. Oxidation of styrene over this mesoporous titanium silicate has also been studied.
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