Adsorption Kinetics of Alcohols over MCM-41 Materials

Adsorption of methanol and ethanol over mesoporous siliceous material are studied in the current paper. The pure mesoporous silica is prepared using tetraethylorthosilicate (TEOS) as silica source and dodecylamine as template at low pH. The prepared material was characterized using nitrogen adsorption,nX-ray diffraction (XRD) and scanning electron microscopy (SEM). The adsorption kinetics of methanol and ethanol from aqueous solution were studied over the prepared mesoporous silica material. The percent removal of alcohol was calculated per unit mass of adsorbent used. The 1st order model is found to be in agreement with both adsorbates while the 2nd order model fit the adsorption of methanol only.

Authors:

• Farouq Twaiq
• Mustafa Nasser
• Siham Al-Hajri
• Mansoor Al-Hasani

Keywords:

• Adsorption
• Kinetics
• Mesoprous silica
• Methanol

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