Hartanto, D. and Saputro, O. and Utomo, W. P. and Rosyidah, A. and Sugiarso, D. and Ersam, T. and Nur, H. and Prasetyoko, D. (2016) Synthesis of ZSM-5 directly from Kaolin without organic template: Part-1: effect of crystallization time. Chemistry - An Asian Journal, 28 (1). pp. 211-215. ISSN 1861-4728
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Abstract
Zeolite socony mobile-5 (ZSM-5) have been successfully synthesized directly from kaolin without using organic templates. ZSM-5 were synthesized by hydrothermal method at 175 °C with variation on crystallization time of 12, 24, 48 and 72 h. The molar composition of the zeolites was 10Na2O:100SiO2:Al2O3:1800H2O. The analysis of both from X-ray diffraction and FT-IR spectra showed that the ZSM-5 started to be formed during the crystallization time of 12 h. ZSM-5 with crystallization time of 24 h exhibit the highest crystallinity, about 101.17% based on the reference. The crystallinity decrease on the crystallization time of 48 and 72 h. In addition, the surface morphology of ZSM-5 investigated by SEM showed that the sample with Si/Al ratio of 5.74-9.49 with variation time of 24, 48 and 72 h formed aggregate with a hexagonal crystal shape without sharp angle. However, the samples with crystallization time of 12 h showed irregular shape.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Kaolin, Kaolinite, Synthesis (chemical), X ray diffraction, Zeolites, Crystallization time, Hexagonal crystals, Hydrothermal, Hydrothermal methods, Irregular shape, Molar compositions, Organic templates, ZSM-5, Hydrothermal synthesis |
| Subjects: | Q Science > Q Science (General) |
| Divisions: | Science |
| ID Code: | 74379 |
| Deposited By: | Widya Wahid |
| Deposited On: | 29 Nov 2017 23:58 |
| Last Modified: | 29 Nov 2017 23:58 |
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