Abstract

Using vapor-phase transformation method,binder-flee monoliths of ultrafine ZSM-5 zeolite crystals were prepared by conversion of the preformed bodies of diatomite and silica sol,which mixed with some zeolite seeding directors.The tiny zeolite crystals and units in the seeding directors inducted the conversion of the alumino-silicalite raw materials into intergrown ZSM-5 zeolites,which resulted in binder-free zeolite monoliths.The prepared materials possess enriched porosity,high surface area,good mechanical strength and tunable acidity which can be verified by the characterization.The products have promising applications in catalyst and adsorbent.

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