Mechanochemically-assisted solvent-free and template-free synthesis of zeolites ZSM-5 and mordenite.

ABSTRACT: Aluminosilicate-based zeolite materials, such as ZSM-5 and mordenite, are well-studied as catalysts. Typical approaches to synthesize these zeolites require either templates or seeds to direct ordered crystal growth and both of these are expensive and add to the complexity of zeolite synthesis. In this paper, we describe a solvent-free and template-free method to synthesize crystalline ZSM-5 and mordenite zeolites without any added seed crystals. Key to the success of this approach is a mechanochemical precursor pre-reaction step. High-energy ball-milling is used to initiate a solid-state metathesis (exchange) reaction between Na₂SiO₃ and Al₂(SO₄)₃ reagents, forming crystalline Na₂SO₄ and well-mixed aluminosilicat

SUBMITTER: Nada MH 

PROVIDER: S-EPMC9418510 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature