钛掺杂有序介孔硅Ti-KIT-6的制备与表征（英文）

Synthesis and Characterization of Titanium Incorporated*Ordered Mesoporous Silicate Ti-KIT-6

以三嵌段共聚物Pluronic P123和正丁醇为结构导向剂，正硅酸乙酯为硅源，钛酸丁酯为钛源，利用水热合成法制备钛掺杂KIT一6介孔分子筛．反应物TEOS，TBOT，P123，HCl，BuOH，H20的物质的量比为1：0．014～0．1：0．017。1．O～3．0；1．31：195．通过XRD，BET，FT—IR和uV—Vis表征制备得到的材料．结果表明，掺钛量对原立方相的骨架结构和结晶度的影响显著．同时研究了制备Ti—KIT-6（20）时盐酸加入量对其结构的影响．

Titanium incorporated mesoporous KIT-6 molecular sieves were synthesized by direct hydro- thermal method using Pluronic P123 and n-butanol as the structure-directing mixture,tetraethylorthosili- care （TEOS） as the silica source and tetrabutyl titanate （TBOT） as the titanium source. The mole ratio of TEOS,TBOT,P123,HC1,BuOH,H2O,was 1 ： 0. 014～0.1 ： 0. 017 ： 1.0～3.0 ～ 1.31 ： 195. The ma- terials were characterized using XRD, BET, FT-IR and UV-Vis. The amount of titanium content influ- enced the framework structure and crystallinity of the Ia3d phase significantly. The effect of the amount of HC1 on the structure of Ti-KIT-6 （20） was also studied.