In-situ preparation of hierarchical Beta zeolite by steam- assisted crystallization method using meso-macroporous silica

Abstract In this paper, a series of meso-macroporous silica (MMS) were prepared by phase separation, then mic-meso-macroporous Beta zeolite was steam-assisted crystallization (SAC) method using the as substrate. The factors such amount water, time, aluminum source, template agent during SAC investigated. Various characterization methods BET, XRD, SEM used to investigate physical and chemical properties materials. results showed that could be transformed into through while macroporous structure still maintained.