Microwave preparation of a titanium-substituted mesoporous molecular sieve

A titanium-containing redox material with disordered wormhole-like mesoporo us structure was prepared using microwave heating. Substantially accelerate d crystallization was achieved using microwave heating compared with the co nventional oven heating. Development of the mesopore structure was confirme d by XRD, TEM, and N-2 physisorption. Incorporation of titanium into the me sopore structure was confirmed by UV-vis spectroscopy. A laser light partic le size analyzer showed that smaller particle size and narrower particle si ze distribution were obtained with microwave heating than with oven-heated hydrothermal synthesis. These mesoporous titanosilicates were equally activ e as catalysts for liquid-phase oxidation of 2,6-di-tert-butylphenol with h ydrogen peroxide as an oxidant.