Development and characterization of synthetic clay LDH type and their application on the adsorption of Cu2+ions [Élaboration et caractérisation d'argiles synthétiques de type HDL et leur application pour l'adsorption des ions Cu2+]

In this study,we are aiming to test the ability of layered double hydroxides (ldh) to eliminate the metal cations. the ldh subject to study were prepared by co-precipitation method at constant ph. the morphological and structural characterizations of these materials were conducted by x-ray diffraction (xrd) and the scanning electron microscope (sem). the obtained results show that the clay minerals got good capacity retention of the cupric ions. the influence of the calcinations,temperature and the freezing time of the removal cupric ions by these materials was carried out from the laboratory synthetic solutions.