Ti-containing mesoporous molecular sieves synthesized with different Ti content as selective catalysts in cyclohexene oxidation

GRISELDA A. EIMER, SANDRA G. CASUSCELLI, MÓNICA E. CRIVELLO, GUILLERMO E. GHIONE, EDUARDO R. HERRERO

Sapporo, Japan

Congreso; 5th Word Congress on Oxidation Catalysis; 2005

Mesoporous Ti-containing materials have been synthesized with different degree of loadings and compared with pure siliceous MCM-41 prepared at the same conditions. Structural regularity was determined by XRD and highly ordered structures could be obtained. UV-vis DR confirmed that the titanium was mainly tetrahedrally coordinated into the mesoporous framework. At high amount of Ti the regular mesoporous long-range order decreases, however, separate anatase phase was not observed for any sample. The catalysts were tested in the cyclohexene epoxidation using hydrogen peroxide as oxidant.