Two silica-pillared layered ferrititanates were synthesized by first preswelling K0.8Fe0.8Ti1.2O4 with n-C6H13NH3Cl, then reacting with NH2(CH2)3Si(OC2H5)3 and finally calcinating the resultant product in air to remove the interlayered organics. XRD, IR, DTA/TG, Mossbauer spectroscopy, X-ray fluorimetry, specific surface area and pore size distribution measurements were used to characterize the obtained new materials. The results show that these two silica-pillared layered ferrititanates have high thermal stability beyond 650℃, BET specific surface area of 98.0m^2/g and 163.8m^2/g, and average pore size of 1.82 nm and 1.90 nm, respectively.

Key words: INFRARED SPECTROPHOTOMETRY, X-RAY DIFFRACTION ANALYSIS, SILICON OXIDE, IRON OXIDE, TITANIUM OXIDE, POTASSIUM OXIDE, DIFFERENTIAL SCANNING CALORIMETRY, THERMOGRAVIMETRY, MOSSBAUER SPECTROMETRY