Near- and mid-infrared spectroscopy study of synthetic hydrocalumites

Three hydrocalumites containing Ca and Al in a 3:1 ratio, and carbonate as interlayer anion, were synthesized by coprecipitation, homogeneous precipitation in the presence of urea and the sol–gel method. The three solids thus obtained were for the first time characterized by using near- and mid-infrared spectroscopies. The structural similarity of the solids determined by X-ray diffraction was confirmed by the spectroscopic results.

Figure optionsDownload as PowerPoint slide