Chemical recycling of polyurethane foam waste and application for antibacterial and removal of anionic and cationic dyes

Abstract The large amounts of polyurethane foam wastes (PUFWs) produced in the automobiles, buildings, and furniture industries cause many environmental problems. Therefore, recycling PUFWs has acquired great interest worldwide. In this study, were converted to new nanocomposite. chemical modification was conducted through reflux with potassium permanganate 0.1 M H 2 SO 4 . PUF-COO@MnO nanocomposites characterized by scanning electron microscope, energy-dispersive X-ray spectrometry, diffraction, Magnetic susceptibility. been used for removal cationic (Methylene blue) anionic (Trypan dyes from industrial wastewater. antibacterial effect also examined against Gram-positive Gram-negative bacterial strains. adsorption capacities tested 277 269 mg/g. Moreover, showed a potent action B. cereus (8.8 mm) followed S. aureus (7.5 E. coli (7.1 mm). It concluded that can be employed as low-cost material synthetic effluents.