Interaction/synergistic effect of Mg~(2+) and Ba~(2+) on the size and morphology of the zeolite L crystals

摘要

The effect of Mg~(2+) and Ba~(2+) added separately and added together to zeolite L synthesis gels on the purity, morphology, and size of the products was investigated. All products were 100% pure zeolite L. The results of a 22 factorial experiment (two factors: gel Mg2+ and Ba~(2+) content) showed a two-factor interaction: the average crystal length depended on the concentration of both cations in the gel, and decreased with the increasing gel cation content. A synergistic effect was observed: the crystals were smaller and their morphology improved from poorly to well formed cylinders compared to the crystals obtained by combining products grown using Mg2+ and Ba2+ added separately at the corresponding concentrations.