Cherifi-Naci, H.Boughrara, S.Louhab, K.2023-12-032023-12-0320152437-1114https://dspace.univ-boumerdes.dz/handle/123456789/12543https://www.asjp.cerist.dz/en/article/19231Pillared Clays with polycations of Aluminum and Iron have been ‎synthesized from natural bentonite using the solutions of Al ‎‎(NO3)3.9H2O and Fe (NO3) 3.9H2O as pillaring agents. The ‎resulting pillared clays have been characterized by X-ray ‎diffraction (XRD), X-ray fluorescence (XRF) and by infrared ‎spectroscopy (FTIR) .The d-spacing of pillared clays of ‎Aluminum and Iron is 20.25 A° and 30.23 A°, respectively. The ‎specific surface area of the clay pillars of aluminum and iron is ‎‎290 and 360 m2 /g, respectively. The kinetic study of the ‎adsorption of copper on the modified clays showed that ‎equilibrium is reached after 60 min. A high adsorption ‎performance was recorded for the following optimal conditions: ‎at the temperature T = 25 ° C, the solid / liquid ratio = 2, the ‎initial concentration of the ion Cu 2+ = 40 mg/l, the amount of ‎adsorbent clay = 800 mg and pH = 6enSynthesisPillaring processIntercalationkinetic AdsorptionCopper ionArticle