采用廉价的四丙基溴化铵(TPABr)为模板剂合成了TS-1分子筛.在晶化过程中,运用XRD,ICP,IR,29Si MAS NMR和UV-Vis光谱等表征手段,系统地研究了钛原子引入分子筛骨架的机制,观察到钛原子随分子筛的形成同步进入骨架的规律.另外,尽管在晶化初期固相中没有TiO2结晶出现,但存在分散态的TiOx物种.随晶化时间的延长,液相中钛物种之间聚合的几率增加,使固相中TiO2晶体不断形成.
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