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Nitrogen- and Halogen-Free Multifunctional Polymer-Directed Fabrication of Aluminum-Rich Hierarchical MFI Zeolites.
- Source :
-
Nanomaterials (2079-4991) . May2022, Vol. 12 Issue 10, p1633-1633. 12p. - Publication Year :
- 2022
-
Abstract
- Aluminum-rich hierarchical MFI-type zeolites with high acidic-site density exhibit excellent activity and selectivity in bulky molecule-involved reactions. However, it is challenging to develop a facile and environmentally benign method for fabricating them. Herein, we employ a polymer that does not contain nitrogen and halogen elements to successfully synthesize aluminum-rich hierarchical ZSM-5 zeolite with a Si/Al ratio of 8 and a significant number of mesopores comprised of oriented-assembled nanocrystals. It is demonstrated that the nitrogen- and halogen-free polymer is instrumental in the formation of the ZSM-5 zeolite by serving as a template for constructing the hierarchical micro/mesoporous structure. Moreover, this polymer also acts as a crystal growth modifier to form a single-crystalline zeolite. Notably, the resultant zeolite shows a better catalytic performance in converting waste plastic into hydrocarbons than a commercial one. Our work enables the synthesis of high-quality hierarchical zeolites without requiring quaternary ammonium templates. [ABSTRACT FROM AUTHOR]
- Subjects :
- *PLASTIC scrap
*ZEOLITES
*HALOGENS
*CRYSTAL growth
*POLYMERS
*MESOPORES
*NITROGEN
Subjects
Details
- Language :
- English
- ISSN :
- 20794991
- Volume :
- 12
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- Nanomaterials (2079-4991)
- Publication Type :
- Academic Journal
- Accession number :
- 157238387
- Full Text :
- https://doi.org/10.3390/nano12101633