A novel method for preparing mesoporous Ti - MCM - 41 has been developed. B
y means of stabilizing Ti4+ with H2O2, a series of Ti - MCM - 41 with diffe
rent inorganic titanic salts as Ti sources have been synthesized via an ele
ctrostatic S+I- templating pathway using [C16H33N (CH3)(3)] Br (CTMAB) as t
he surfactant. The samples were characterized by powder X -ray diffraction
( XRD), FT - IR and nitrogen adsorption, the results show that the samples
have highly ordered mesoporous structure and Ti atoms have been incorporate
d into the framework. In catalyzing oxidation of styrene with hydrogen pero
xide (H2O2), the Ti MCM - 41 samples prepared from inorganic Ti sources exh
ibits higher catalytic activity than those prepared from organic Ti species
( TBOT). The nature of inorganic titanic salts has considerable influence
upon the incorporation of Ti into the silica framework. The samples prepare
d from Ti (SO4)(2) or TiCl4 possess higher catalytic activity for the oxida
tion of styrene with H2O2.