氧化硅柱层状铁钛酸盐的合成和表征

通过先将K_(0.8)Fe_(0.8)Ti_(1.2)O_4与n-C_6H_(13)NH_3Cl反应得到正己铵离子柱撑的层状铁钛酸盐,然后再与NH_2(CH_2)_3Si(OC_2H_5)_3反应,最后将所得产物在空气中焙烧可得到氧化硅柱层状铁钛酸盐.采用XRD,IR,TG/DTA,M(?)ssbauer谱,X荧光分析以及比表面和孔径大小分布测定等手段对所得新材料进行了表征.结果表明:所得二个氧化硅柱层状铁钛酸盐均具有较高的热稳定性(>650℃)和比表面(98.0m^2/g和163.8m^2/g),平均孔径为1.82nm和1.90nm.

氧化硅柱层状铁钛酸盐的制备

A silica-pillared layered ferrititanate was successfully prepared by first preswelling K(0.8)Fe(0.8)Ti(1.2)O4 with n-hexylammonium chloride,and then reacting with NH2CH2CH2CH2si(OC2H5)3 snf ginslly calcinating the resultant product in air at 500℃ .The Obtained silica-pillared layered ferrititanate has a high thermal stability beyond 650℃ and a specific surface area of 98.0m2·g(-1)