Rational Design of Hierarchical Beta Zeolites via Post-Synthesis Treatments and Their Applications.

ABSTRACT: Hierarchical zeolites with micro- and mesoporous frameworks can overcome diffusional limitations of microporous systems. This study investigates the post-synthetic modification of Beta zeolite using different porogeneous agents (NaOH, NH₄OH, NH₄F) under identical conditions to compare their efficiency in generating mesopores. The effect of treatment time was also examined for NH₄OH and NH₄F. The modified materials were characterized using physicochemical techniques and evaluated for catalytic performance in acetic acid esterification with alcohols of different sizes and adsorption of methylene blue. All the modifications increased mesoporosity but reduced acidity. NaOH produced the highest mesoporosity but significantly reduced acidity, while NH<

SUBMITTER: Zielinski M 

PROVIDER: S-EPMC11902114 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature