The aim of this study is of great importance from the point of view of environmental studies. A green polymer containing specific functional groups with the ability to absorb high dosages of contaminated dyes & heavy metals from the wastewater was achieved. The surface properties of the waste cotton tissues were improved through its surface modification by graft polymerization using γ-radiation 60Co to acquire new properties such as hydrophilic or hydrophobic character based on the chemical structure of the used monomer. The nucleophiles surface cotton fiber modification was done by introducing an anionic monomer (2-acrylamide-2-methyl propane sulfonic acid, AMPS) and nano magnetite particles to easily facilitate separation of toxic substances. Factors influencing the grafting such as monomer concentration, radiation dose were studied. The structure surface properties of the grafted fabric were characterized by XRD, SEM, TGA, and IR. The results obtained show high and green removal efficiency of Cd(II), Co(II) and cationic dyes (methylene blue) from wastewater.