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- Title
Insights into the Synthesis of Spiral Beta Zeolite with Enhanced Catalytic Performance in VOC Abatement.
- Authors
Bian, Chaoqun; Luo, Xiaohui; Chen, Xiao
- Abstract
The rational synthesis of zeolites with designed morphology is a highly challenging task. In this study, we propose 1,5-bis(methylpiperidine)pentylammonium hydroxide (BMPPAOH) as an organic structure-directing agent (OSDA) based on theoretical calculations. The morphology of zeolite samples is characterized by XRD, SEM, TEM, N2 sorption isotherms, and UV Raman spectroscopy. This simple bis-quaternary ammonium salt favored the formation of spiral morphology in Beta zeolite spheres (S-Beta). The crystallization of zeolite in the presence of BMMPAOH is a two-stage process, where nanoparticles agglomerate into spheres in the early stages followed by the emergence of S-Beta crystals with spiral morphology. The synthesized Pt-S-Beta catalysts show higher catalytic activity in VOC abatement compared with other Pt-Beta samples.
- Subjects
ABATEMENT (Atmospheric chemistry); DISTRIBUTION isotherms (Chromatography); CRYSTAL morphology; AMMONIUM salts; RAMAN spectroscopy; X-ray diffraction; CATALYTIC activity; ZEOLITES
- Publication
Molecules, 2024, Vol 29, Issue 6, p1386
- ISSN
1420-3049
- Publication type
Article
- DOI
10.3390/molecules29061386