低浓度液体酸介质中快速合成SBA-15分子筛  

Rapid Synthesis of SBA-15 Molecular Sieves in Low Concentration Liquid Acid Media

作　　者：罗永明[1,2] 侯昭胤[1] 郑小明[1] 

机构地区：[1]浙江大学西溪校区催化研究所 [2]昆明理工大学环境科学与工程学院昆明650093

出　　处：《化学学报》2007年第15期1481-1486,共6页Acta Chimica Sinica

基　　金：国家自然科学基金重点项目(No.20433030);国家"863"计划项目(No.2006AA03Z328);国家自然科学基金(No.90610002);浙江省自然科学基金(No.Z406142)资助项目.

摘　　要：通过在低浓度无机液体酸介质中添加少量磷钼酸(HPMo),成功地合成了高度有序的SBA-15介孔分子筛.N2吸附-脱附、XRD、TEM和水热稳定性实验等检测结果表明:用这种方法不仅可以大幅度降低合成SBA-15分子筛所需液体酸的用量和缩短晶化时间,同时反应产物SBA-15在100℃的水中处理72h后仍然保持六方有序的介孔结构.Highly ordered SBA-15 sieves have been successfully synthesized in a low concentration liquid inorganic acid medium via the addition of small amounts of phosphomolybdic acid （HPMo）. The solid product was characterized by N2 adsorption-desorption, XRD, TEM and hydrothermal stability test. These results indicated that small amounts of HPMo in the synthesis media could reduce the amount of liquid inorganic acid and crystallization time greatly. And SBA-15 sieves prepared in this method exhibited an excellent hydrothermal stability, as its hexagonally ordered mesostructure was maintained after treated in 100 ℃ water over 72 h.

关 键 词：模板剂 低浓度液体酸 磷钼酸 SBA-15 水热稳定性 

分 类 号：O643.32[理学—物理化学]