Removing lead ions from water by using nanocomposite (rare earth oxide/alumina)

Alumina nanoparticles were prepared using reverse microemulsion method with particle size 3.8 nm. Also, the precipitation method was utilized to prepare samarium and dysprosium oxides with particle size 14 nm and 8.6 nm respectively. Nanocomposites consist of (x)R2O3 / (100 x) y - Alumina; (x = 16 and 44), (R = Sm and Dy) and (y = gamma and alpha) were prepared with milling method. The characterization of all the prepared samples was studied using XRD analyses, transmitted electron microscope (TEM) and atomic force microscope (AFM). The removal efficiency of each prepared sample was measured using the atomic absorption spectroscopy. The study has clarified that the efficiency of the nanocomposite (x)Sm2O3 / (100 x)gamma - alumina; x = 16 to remove lead ions from water after 24 h is about 99.3%.(c) 2017 Elsevier B.V. All rights reserved. (C) 2017 Elsevier B.V. All rights reserved.