摘要
利用1-烷基-3-甲基咪唑的盐([Cnmim]Br,n=12,14,16,18,20)离子液体和十六烷基三甲基溴化铵(CTAB)为复合模板剂成功合成出介孔分子筛MCM-41。经X射线衍射和氮吸脱附的表征表明合成出的分子筛均具有统一的孔径,高的比表面积及稳定的骨架结构。其中,以[C14mim]Br和CTAB为复合模板剂合成分子筛具有最大的比表面积;用[C20mim]Br和CTAB为复合模板剂合成分子筛的孔径最大;而晶形效果最好的分子筛则是用[C16mim]Br和CTAB为复合模板剂。
The mesoporous molecular sieves MCM-41 using rocrn temperature ionic liquid （RTIL） and cethytfirnethylammonium bromide （CFAB） as template has been prepared. In this paper, we report the use of 1-alkyl-3-methylimidazolium salts （[ Cnmim]Br, where n = 12,14,16,18,20） as templates in MCM-41 synthesis. The results showed that the synthesized MCM-41 had uniform pore diameter, high surface area and stable framework. The MCM-41 synthesized with [ Cl4mim]gr and CTAB as co-template has the largest surface area; The one with [C20mim]Br and CTAB as co-template has more larger pore diameter than others; While the best crystal structure was the one with [C46mim]Br and CTAB as oo-template.
出处
《武汉理工大学学报》
EI
CAS
CSCD
北大核心
2008年第12期72-75,共4页
Journal of Wuhan University of Technology
基金
郑州市产学研结合项目(064SJZJ23115)
中南民族大学催化材料学科省重点实验室开放基金
