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Publication
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| Research Title |
Synthesis and Characterization of ZSM-5 Zeolites from Natural Kaolin under Different SiO2/Al2O3 Mole ratios |
| Date of Distribution |
8 January 2013 |
| Conference |
| Title of the Conference |
Pure and Applied Chemistry International Conference 2014 |
| Organiser |
Department of Chemistry, Faculty of Science, Khon Kaen University |
| Conference Place |
Centara Hotel, Khon Kaen |
| Province/State |
Khon Kaen |
| Conference Date |
8 January 2013 |
| To |
10 January 2013 |
| Proceeding Paper |
| Volume |
- |
| Issue |
- |
| Page |
- |
| Editors/edition/publisher |
- |
| Abstract |
ZSM-5 zeolites were synthesized from natural kaolin, Lampang province, Thailand, via hydrothermal process. The kaolin contains silica and alumina sources for zeolites synthesis. After mill and sieving kaolin, the pretreatment was calcined at 700 C for 3 h and followed digestion with 3 M HCl. The chemical composition of SiO2 and Al2O3 analyzed by X-ray fluorescence spectrometry (XRF) were 72.74 %wt and 21.22 %wt, respectively. In preparation of ZSM-5 zeolites, the SiO2/Al2O3 mole ratios were adjusted to 30, 50, 70 and 100 by adding Na2Si3O7 solution. Additionally, the tetrapropylammonium bromide (TPA-Br) was used as a templating agent by added into the mixture and adjusted gel pH to 11 with 0.5 M H2SO4. The optimum conditions of ZSM-5 zeolite synthesis for hydrothermal process were used at 170 C and reaction time for 24 h. After that, the synthesized products for ion-exchange process were refluxed with 1 M (NH4)2SO4 at 90 C for 2 h and then calcined at 550 C for 3 h. Subsequently, the ZSM-5 zeolites were characterized by x-ray diffraction spectrometry (XRD), fourier transform infrared spectrometry (FT-IR), scanning electron microscope (SEM) and brunauer-emmett-teller (BET) surface area analysis.
Keywords ZSM-5 zeolites; Natural kaolin; Pretreatment; Hydrothermal process
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| Peer Review Status |
มีผู้ประเมินอิสระ |
| Level of Conference |
นานาชาติ |
| Type of Proceeding |
Abstract |
| Type of Presentation |
Poster |
| Part of thesis |
true |
| Presentation awarding |
false |
| Attach file |
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| Citation |
0
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Journal Publication
ไทย