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Synthesis and Structural Characterization of Mg/Al Hydrotalcite-Like Compounds

Hydrotalcites consist of Brucite-like layers with positive charge and anionic compounds in the interlayer to form neutral materials. The general formula of hydrotalcite compounds (HTLc) was Mg-A1-HTLc. All samples were characterized by XRD, FT-IR spectra and TG. After calcination, the transformation of hydrotalcite structure can be characterized by vibration infrared bands corresponding to hydroxyl groups, octahedral layers and interlayer species. Moreover, the calcined samples show a relatively high surface area and total pore volume.