The present study offered a straightforward, eco-friendly method for the green synthesis of nanoparticles, as it has gained significant attention in recent years. The study set out to demonstrate the bio-synthesis of nanoparticles using common plants such as Eruca sativa know as (jarjer) and Allium ampeloprasum var. porrum know as (korath) to produce copper oxides nanoparticles (CuO NPs) for treating the heavy metal pollution water of Baher Al-Najaf. The result shows the higher level in heavy metal was lead (Pb) 4.6184mg L-1 mg/l followed by the Chromium (Cr) 0.2892 mg L -1 and Cadmium (Cd) 0.1531 mg L-1 mg/l. the Eruca sativa show high efficiency of decreasing the concentration of Lead metal by dropping it to 1.2803 mg L-1, while decreasing the Chromium to 0.0144 mg L-1. Also, the study conducts a multiple analysis and devices to create an optimal condition for copper oxide bio-synthesis such as ultraviolet- visible (UV-Vis) Atomic force microscope (AFM) Fourier Transform Infrared spectroscopy (FTIR). The result of AFM analysis show that the average dimeter for the copper oxide for the Eruca sativa was 125.7 nm with height of 1186 nm And for the Allium ampeloprasum var. porrum was 71.4 nm and a height of 840. 6nm.The Fourier Transforms Infrared (FTIR) Spectroscopy Analysis for the Eruca sativa appears in the broad peak at 597.89-430.01/cm-1, Allium ampeloprasum var. porrum appears in the broad peak at 557.39-430.01/cm-1.
