Contribution in Characterization of Bentonite from Aleppo
Abstract
Due to its unique properties, bentonite is a versatile material in many industrial applications and environmental control. Therefore, It is important to check these properties as an indication of the expected performance in various applications. In this study, the main goal was to characterize bentonite clay from Aleppo, and estimate its quality and potential use. A combination of state-of-the art analytical techniques is employed to characterize bentonite from Aleppo such as X-ray diffraction (XRD), Infrared spectral analysis (FTTR), and scanning electron microscopy coupled with EDX microanalysis (SEM-EDX). Bentonite was also characterized for its moisture content, pH, point of zero charge (PZC) by drift method, specific surface area (SSA) by EGME method and a cation – exchange capacity (CEC) by sodium acetate method.
It has been concluded that bentonite from Aleppo is primarily dioctahedral smectite (montmorilonite) as the main phase accompanied with quartz and calcite as secondary phases. It has a point of zero charge 8.7, specific surface area of 291 and a cation – exchange capacity of 87 meq/100g. Chemical analysis demonstrated that SiO2 and Al2O3 are the most abundant oxides. The findings were close to the reported literature values. Based on these results, bentonite from Aleppo is a high-quality raw material for use in various fields.
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