A simple, one-pot method was designed for preparing nanocomposite material and its potential applications for water remediation. X-ray diffraction, Fourier Transform infrared, scanning, and transmission electron microscopy, thermogravimetric analysis and derivative thermogravimetry, and N₂ adsorption and desorption isotherm techniques were used to examine the chemical and physical characteristics of the prepared nanomaterials. The developed nano-sized sorbent has a good surface area of about 106.788 m² g⁻¹. The synthesized nanocomposite was employed as a sorbent to remove several heavy metals, such as Cd(II), Cu(II), Fe(III), Pb(II), Mn(II), and Cr(VI), and different pesticides (e.g., Diazinon, Parathion Methyl, Malathion, Parathion ethyl, Epoxide, DDE, Dieldrin, and Aldrin). The removal efficiencies were found to be in the range of 9.52–94.8%, 23.14–99.40%, and 8.91–85.50% for pesticides, heavy metals, and physical contaminants, respectively. In addition, the sorption capacities of the different metals ranged from 2.31 to 9.94 mg g⁻¹, and from 2.67 to 28.00 mg g⁻¹ for different pesticides. While it was 31.49–306.63 mg g⁻¹ for physical contaminants.