Intercalation Assembly and Characterization of the Supermolecular Structure of Mg-AI-Maleate Layered Double Hydroxides

摘要

A positive Mg-Al-maleate layered double hydroxides (LDHs) has been synthesized using back mixing precipitation method. The samples were characterized by XRD, SEM and FTIR. The results shows:carbonate anions of Mg-Al Hydrotalcits can be complerely replaced by maleate anions under controlled conditions, with the expansion of the distance between layers from 0.76 nm to 1.10 nm. Mg-Al-maleate LDHs, has supermolecular structure and nanometer size, was formed, and the model of molecular structure was given.