整体式堇青石载体上TS-1的原位合成  

In situ Synthesis of Titanium Silicalite-1 on Monolithic Cordierite Support

作　　者：宗丽[1] 刘莹[1] 辛峰[1] 

机构地区：[1]天津大学化工学院,天津300072

出　　处：《无机材料学报》2007年第6期1227-1232,共6页Journal of Inorganic Materials

基　　金：国家自然科学基金(20376056)

摘　　要：运用水热合成技术,在通道密度为62cell/cm^2的堇青石蜂窝陶瓷载体上,原位合成了TS-1分子筛.并用XRD、FT-IR和SEM等测试手段对其进行了表征.在此基础上,寻找出能降低模板剂和钛源用量的原料配比,并简化了合成路线.同时,还讨论了原料中H_2O和SiO_2的摩尔比以及晶化时间对TS-1负载状况的影响.结果表明,用37%盐酸处理6h后的堇青石蜂窝载体的内外表面上,经过一次水热合成,可牢固、均匀地生长出TS-1分子筛膜,而相应的载体增重为10%～16%.Titanium silicalite-1 molecular sieve （TS-1） was in situ synthesized on the surface of honeycomb-shaped cordierite support by a hydrothermal method. XRD, FT-IR and SEM were used to characterize the samples. The optimal process of preparing TS-1/cordierite including synthesized from cheaper preplursor was studied. Meanwhile, the effects of crystallization period and molar ratio of H2O and SiO2 in their mother solution on the growth of TS-1 on monolithic cordierite support were also researched experimentally. The results show that a coating of TS-1 crystals grows successfully on the surface of monolithic cordierite support pretreated with 37% hydrochloric acid for 6h, and the weight of the cordierite is increased by 10%-16%.

关 键 词：整体式堇青石载体 TS-1分子筛 原位合成 

分 类 号：O643[理学—物理化学]