Simplified synthesis of layered double hydroxide using a natural source of magnesium

摘要

The dolomite is a double carbonate; it is a natural source of calcium and magnesium ions. In this study, Mg-Al-CO_3 layered double hydroxide was synthesized from the dolomite by a simple method. The effect of synthesis parameters, such as M~(2+)/Al~(3+) ratio, reaction temperature and pH on their structure, and textural properties were studied. The structure of materials was characterized by X-ray diffraction, Fourier transform infrared spectroscopy, thermogravimetric analysis (TGA) and Brunauer, Emmett, and Teller (BET) measurements.