Comparative Adsorption of Cd (II) and Pb (II) by MCM-48 and Amine-Grafted MCM-48 in Single and Binary Component Systems

MCM-48 were prepared using hexadecyl trimethyl ammonium bromide and TEOS modified with N1-(3-trimethoxysilylpropyl) diethylenetriamine by post-synthesis method to develop efficient adsorbent for heavy metal adsorption. These materials determined X-ray diffraction, N2 adsorption–desorption measurement, scanning electron microscopy. The results show that the modification of resulted in a decrease Brunauer–Emmett–Teller surface area total pore volume. Batch adsorption technique single multicomponent systems was used this study. experimental parameters’ influence investigated, indicated amine-attached higher efficiency ions than MCM-48. Langmuir Freundlich models modeled equilibrium data system, whereas two-component fitted extended model. maximum capacity (qm, system) NH2-NH-NH-MCM-48 cadmium lead 82.7 119.24 mg g?1, respectively. In both systems, affinity more significant lead.