摘要
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.
出处
《吉首大学学报(自然科学版)》
CAS
2016年第4期49-56,共8页
Journal of Jishou University(Natural Sciences Edition)
基金
National Natural Science Foundation of China(21476267)
China-Japan International Cooperation Project(2013DFG50150)
关键词
钛
KIT-6
骨架结构
结晶度
制备
表征
titanium KIT-6 framework structure crystallinity preparation characterization