【摘要】 本文报道通过先用正己胺盐酸盐水溶液与Ｋ２Ｌａ２Ｔｉ３Ｏ１０发生离子交换得到正己铵离子柱撑的层状镧钛酸盐，然后再与氨基丙基三乙氧基硅烷的正八面体多聚体作用，最后将层间的有机物焙烧分解掉后可得新型氧化硅柱层状镧钛酸盐。采用Ｘ射线衍射（ＸＲＤ）、红外光谱（ＩＲ）、差热热重分析（ＴＧ／ＤＴＡ）、透射电子显微镜（ＴＥＭ）和比表面测定等方法对该新材料进行了表征。结果表明，所得氧化硅柱层状镧钛酸盐具有很高的热稳定性（＞８００℃）和较大的层间距（ｄ００１＝１．７３ｎｍ，５００℃）及比表面（４３０ｍ２ｇ－１，５５０℃）。更多还原

【Abstract】 A silica pillared layered lanthanum titanate was prepared by first exchanging K 2La 2Ti 3O 10 with n C 6H 13 NH 3Cl, then reacting with octa (3 aminopropylsilasesquioxane), and finally calcinating the obtained product in air to remove the interlayered organics. XRD, IR, TG/DTA, TEM, and specific surface area measurement were used to characterize the resultant silica pillared layered lanthanum titanate. It was shown that the silica pillared layered lanthanum titanate has a high thermal stability above 800℃, an interlayer distance of 1.73 nm (500℃) and a specific surface area of 43.0 m 2g -1 .更多还原