Post-synthesis fluoride treatment of Analcime zeolite synthesized using a novel organic template. Crystalline, textural, and acid study

ANA-type zeolites were successfully prepared using  N,N -dimethylaniline as an organic template. The obtained zeolites were then characterized using XRD, FTIR, TG, and BET. At 85 °C, high crystallized samples were post-treated in fluoride media with NH 4 F. Fluoride-treated materials are characteriz...

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Bibliographic Details
Published in:Research on chemical intermediates 2022-02, Vol.48 (2), p.491-503
Main Authors: Chouat, Nadjat, Bensafi, Boumediéne, Djafri, Fatiha
Format: Article
Language:English
Subjects:
Catalysis
Chemistry
Chemistry and Materials Science
Crystal structure
Crystallinity
Crystallization
Fluorides
Fluorination
Inorganic Chemistry
Physical Chemistry
Reagents
Zeolites
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Summary:ANA-type zeolites were successfully prepared using  N,N -dimethylaniline as an organic template. The obtained zeolites were then characterized using XRD, FTIR, TG, and BET. At 85 °C, high crystallized samples were post-treated in fluoride media with NH 4 F. Fluoride-treated materials are characterized using XRD and BET to confirm their crystallinity and porosity changes, and MeOH adsorption to verify their surface acidities. Results indicate that  N,N -dimethylaniline is an excellent organic structure-directing agent and post-fluorination treatment has developed a new additional mesoporosity and high acidity.
ISSN:0922-6168
1568-5675
DOI:10.1007/s11164-021-04606-4