Synthesis and Application of Calcium-aluminum Layered Double Hydroxides
Ca-Al layered double-hydroxides ( Ca-Al-LDHs) , known as Ca-Al hydrotalcite-like compounds or hydrocalumite, has long been studied for their layered structure, thermal stability, ion interchangeability, acid-base bi-functioal features. Meanwhile, the derived CaO has matrix composit metal oxides after calcination possess such as abundant pore structure, strong alkali, etc. Therefore, Ca-Al-LDHs and derived oxides are widely applied as adsorbents, PVC stabilizer, solid base catalysts, controlled release formulation, etc. The difference structure between Ca-Al hydrotalcite or hydrocalumite, the preparation method and application in various fields were briefly discussed.
Ca-Al-LDHshydrocalumitePVC stabilizersolid base catalyst
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