Adsorption of Strontium by aminosilane functionalized MCM-41

MCM-41-NH2 was prepared by grafting aminopropyls on the pore wall of the mesoporous silica MCM-41 for the separation of Strontium ions. The effect of experimental parameters such as PH , temperature, initial metal concentration and contact time were studied and optimized. Single component adsorption show that adsorption was optimal in the pH=6.The adsorption capacity MCM-41-NH2 for Sr2+was high. MCM-41 and MCM-41-NH2 were characterized by infrared (IR)spectroscopies, low-angle X-ray diffraction (XRD), surface analysis (BET) and thermogravimetric analysis

کلیدواژه ها:

MCM-41-NH2 ، Strontium ، Mesoporous silica ، Adsorption capacity