Effect of kalium hydroxide/fly ash ratio and hydrothermal temperature in Zeolite W formation by X-ray diffraction analysis

The Zeolite W synthesized from coal fly ash (CFA) by hydrothermal method using 5 M Kalium hydroxide (KOH), variations of KOH: CFA ratio (1, 2 and 3 L/kg) and hydrothermal temperature (150, 200, and 250°C) for 8 hours had been done. The XRD diffractogram analysis revealed five peaks at 2θ around 10.6...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2019-05, Vol.509 (1), p.12038
Main Authors: Heraldy, Eddy, Rahmawati, Fitria, Indri, Nurul Apri, Nur Cahyo, Syaiful Ahmad
Format: Article
Language:English
Subjects:
coal fly ash
Fly ash
Hematite
hydrothermal
X-ray diffraction
zeolite
Zeolites
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Summary:The Zeolite W synthesized from coal fly ash (CFA) by hydrothermal method using 5 M Kalium hydroxide (KOH), variations of KOH: CFA ratio (1, 2 and 3 L/kg) and hydrothermal temperature (150, 200, and 250°C) for 8 hours had been done. The XRD diffractogram analysis revealed five peaks at 2θ around 10.61°; 12.48°; 27.39°; 28.19°; and 32.92° which correspond to the peaks characteristic of zeolite W. The refinement result showed the other phases such as hematite, quartz, and tobermorite.
ISSN:1757-8981
1757-899X
1757-899X
DOI:10.1088/1757-899X/509/1/012038