Synthesis and characterization of zeolite NaX from Bangka Belitung Kaolin as alternative precursor
| Main Authors: | Vita Nur Iftitahiyah, Didik Prasetyoko, Hadi Nur, Hasliza Bahruji, Hartati |
|---|---|
| Format: | Article PeerReviewed Image Book |
| Bahasa: | eng |
| Terbitan: |
Malaysian Journal of Fundamental and Applied Sciences
, 2018
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| Subjects: | |
| Online Access: |
http://repository.unair.ac.id/98189/1/C13.%20Abstract_Synthesis%20and%20characterization%20of%20zeolite%20NaX.pdf http://repository.unair.ac.id/98189/2/C13.%20Synthesis%20and%20characterization%20of%20zeolite%20NaX.pdf http://repository.unair.ac.id/98189/3/C13..%20Review%20dan%20Validasi_Synthesis%20and%20characterization%20of%20zeolite%20NaX.pdf http://repository.unair.ac.id/98189/4/C13...%20Similarity_Synthesis%20and%20characterization%20of%20zeolite%20NaX.pdf http://repository.unair.ac.id/98189/ https://mjfas.utm.my/index.php/mjfas/article/view/964/pdf |
Daftar Isi:
- The potential use of kaolin as silica and alumina precursor for the synthesis of zeolite NaX was investigated in this study. The synthesis involved three steps of reactions; the preparation of seed gel, the formation of feedstock gel using kaolin and the combination of overall gel followed by hydrothermal treatment at 105°C for 12 hours. Analysis using X-ray Diffraction (XRD) method indicated the transformation of kaolin into pure phase zeolite NaX with a small amount of kaolin was still visible. Detail microscopic analysis showed the morphology of zeolite X consisted of octahedral particles with a crystallite diameter of 20-30 μm. Analysis of surface acidity using pyridine as probe molecule indicated the zeolite X has high Brǿnsted acidity with 0.181 mmol/g of acid sites, significantly higher than Lewis acidity ~0.053 mmol/g. The N2 adsorption-desorption measurement indicated a type IV material with both microporous and mesoporous structures with an average pore size of 1.47 nm for micropore and 3.41 nm for mesoporous.