Hydrolytic systhesis of TiO_2-modified mesoporous molecular MCM-41 in vapour phase and its structure charaterization

Using sodium silicate as silicate and surfactant C16H33(CH3)3NBr as structural template,the preparation of mesoporous molecular sieve MCM-41 was accomplished successfully and with tetrabutyltitanate as precursor and aqueous vapour as activation medium,the inner surface of mesoporous sieve MCM-41 was modified by nano-titanate in an infrared image furnace.XRD,IR,SEM and N2 adsorption/desorption at 77K characterizations indicate that nano-titanate not only got into the inner wall of mesoporous MCM-41,but also made MCM-41 remain its ordered pore structure.