The Synergistic Impact of Crystal Seed and Fluoride Ion in the Synthesis of Silicalite-1 Zeolite in Low-Template Systems.

ABSTRACT: Silicalite-1 zeolites are widely applied in gas adsorption, catalysis, and separation due to their excellent hydrothermal stability and unique pore structure. However, traditional preparation methods have inherent drawbacks such as high pollution, high cost, etc. Therefore, this work proposed a green and efficient route for preparing Silicalite-1 zeolite by adding NH₄F (F/Si = 0.1) and seeds (10 wt%) in a much shorter time (8 h) in a low-template system (TPA⁺/Si = 0.007). It was found that NH₄F is beneficial for inhibiting the formation of SiO₂. The S-1 seeds could drastically induce the formation of the zeolite skeleton structure. Noteworthy, the morphology of zeolites was determined by the relative content of NH₄F and seeds. The crys

SUBMITTER: Meng X 

PROVIDER: S-EPMC10779753 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature