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

13th Joint Conference on Chemistry

Heraldy, Eddy^1^2 ; Rahmawati, Fitria^1^2 ; Indri, Nurul Apri^1 ; Nur Cahyo, Syaiful Ahmad^1

Department of Chemistry, Mathematics and Natural Sciences Faculty, Sebelas Maret University, Jl.Ir. Sutami 36 A Kentingan, Surakarta

57126, Indonesia^1

Solid State Chemistry and Catalysis Research Group, Chemistry Department, Sebelas Maret University, Jl.Ir. Sutami 36 A, Kentingan, Surakarta

57126, Indonesia^2

关键词: Coal fly ash;    Diffractograms;    hydrothermal;    Hydrothermal methods;    Hydrothermal temperature;    Tobermorite;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/509/1/012038/pdf
DOI  :  10.1088/1757-899X/509/1/012038

来源: IOP

【 摘 要 】

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.