摘要
在敞开体系中 ,以工业用水玻璃为硅源 ,以Al2 (SO4) 3 为铝源 ,以三甲基十六烷基溴化铵 (CTMAB)为模板剂 ,用H2 SO4调节浆料的pH值 ,在浆料混合物摩尔比组成为n(SiO2 )∶n(Na2 O)∶n(CTMAB)∶n(Al2 (SO4) 3 )∶n(H2 O) =7∶2 .0 8∶1.4∶(0 .0 875～ 0 .7)∶5 30的范围内 ,10 0℃搅拌晶化 2 4h ,合成出了含铝中孔分子筛 .利用XRD ,IR和化学分析对产物晶体的长程有序性和骨架铝进行了表征 ,讨论了n(Si) /n(Al)的摩尔比值和浆料pH值对分子筛晶化的影响 .
The mesoporous molecular sieve was prepared by using silica from industrial water glass, aluminum from Al_2(SO_4)_3 with H_2SO_4 for adjusting the pH of the slurry and CTMAB as template in an open-vessel. The mole ratio of the slurry mixture was: n(SiO_2)∶n(Na_2O)∶n(CTMAB)∶n(Al_2(SO_4)_3)∶n(H_2O)=7∶2.08∶1.4∶(0.087 5 ～0.7)∶530. The product was made by keeping the mixed slurry crystallize at 100℃ for 24h. The characterization of its crystal order and framework aluminum was carried out by means of XRD, IR and chemistry analysis. The effect of mole ratio of n(Si)/n(Al) and pH of the slurry on the crystallization of the mesoporous molecular sieve was discussed.
出处
《化学研究》
CAS
2004年第4期23-26,共4页
Chemical Research
基金
河南省自然科学基金资助项目(20011500020).
