Synthesis of mesoporous MCM-48 with a mixed non-ionic-cationic surfactant templating pathway  

作　　者：Wei Zhao Jiandong Yao Xidan Huang Quanzhi Li 

机构地区：[1]Fudan Univ, Dept Chem, Shanghai 200433, Peoples R China

出　　处：《Chinese Science Bulletin》2001年第17期1436-1439,共4页

基　　金：the National Natural Sicence Foundation of China (Grant Nos. 29733070 and CM9703942).

摘　　要：In a hydrothennal system, we studied the influence of nonionic surfactant poly(ethylenglycol) monooc-tylphenyl ether (OP-10) on the self-assembling process of mesoporous molecular sieve MCM-48 and found that OP-10 can decrease the amount of cationic surfactant needed for the preparation of MCM-48 further by its stronger van der Waals force , shorten the synthetic period and produce MCM-48 with more extensive cross-linked framework. By altering the ratio of nonionic surfactant to cationic surfactant, we could obtain the mesoporous molecular sieves with different structures. When the crystallization temperature exceeded -140℃, OP-10 would separate from micelle, lose its amphiphilic character , and then hamper the conversion of lamellar mesoporous molecular sieves into microporous materials.In a hydrothermal system, we studied the influence of nonionic surfactant poly(ethylenglycol) monooctylphenyl ether (OP-10) on the self-assembling process of mesoporous molecular sieve MCM-48 and found that OP-10 can decrease the amount of cationic surfactant needed for the preparation of MCM-48 further by its stronger van der Waals force, shorten the synthetic period and produce MCM-48 with more extensive cross-linked framework. By altering the ratio of nonionic surfactant to cationic surfactant, we could obtain the mesoporous molecular sieves with different structures. When the crystallization temperature exceeded 140°C, OP-10 would separate from micelle, lose its amphiphilic character, and then hamper the conversion of lamellar mesoporous molecular sieves into microporous materials.

关 键 词：MCM-48 MIXED template poly(ethylenglycol) monooc-tylphenyl ETHER hydrothermal synthesis. 

分 类 号：TQ423[化学工程]