Recycling of Plastic Waste Made of Polystyrene and Its Transformation into Nanocomposites by Green Methods

The titanium dioxide nanoparticles were synthesized by the sol-gel method, while the copper oxide nanoparticles (CuO) were synthesized by the green method by using Sidr extract. The nanocomposites were prepared from the condensation reaction of polystyrene (PS), TiO2, CuO, and (GO) by simple mixing method. These structure (PS/GO/CuO) and (PS/TiO2/CuO) were characterized by FE-SEM, X-rays diffraction, and thermal analysis. The measurements showed that PS/TiO2/CuO and PS/GO/CuO of the synthesized were present in nanoparticle size within the nano-scale. The nanocomposites were tested in the applications of biological activity as antibacterial, antifungal, and antioxidant. The results showed that the nanocomposites (PS/GO/CuO) gave a higher inhibition value than (PS/TiO2/CuO) nanocomposites with bacteria.