One of the threats to human and animal health is the presence of metal pollutants and dyes in the environment. In this research, a modified nanoadsorbent CZFO@SiO2-Pr-Azo-SA MNPs was synthesized with a simple method (co-preparation method, functionalized with APTS and Azo-SA Ligand). The structure of this nanoadsorbent was determined using Fourier Transform Infrared Spectroscopy (FT-IR), X-Ray Diffraction Pattern (XRD), Thermogravimetric analysis (TGA). The performance of this prepared nanoadsorbent was investigated for the removal of Pb (ІІ) ions and Rhodamine B (RhB) dye from aqueous solution. Our findings showed that the adsorption process followed the Langmuir isotherm and according to the second-order model and removes pollutants in a single layer. A kinetic study revealed a second-order method for removal of both RhB days and Pb (ІІ) ions from an aqueous solution. Furthermore, the thermodynamic analysis describes the reaction process as exothermic.
