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Incorporating nanostructured metal and metal oxide in a polymer matrix is a strategic way to develop a novel candidate for water bioremediation. In this study, under microwave irradiation, a ZnO-Ag/polypyrrole (PPy) nanocomposite with a core/shell structure was prepared by interfacial polymerization of pyrrole in the presence of ZnO nanoparticles and AgNO 3 as an oxidant. The antimicrobial behavior of the ZnO-Ag core combined with the electrical properties of the conducting PPy shell created a special ZnO-Ag/PPy nanocomposite with inherent adsorption behavior and antimicrobial properties. More impressively, the as-prepared ZnO-Ag/PPy displayed enhanced adsorption of Cd 2+ and PO 4  3- ions in the mixed solution. At pH 8, it had overall removal efficiencies of 95% and 75% for Cd 2+ and PO 4  3- ions, respectively. The Freundlich adsorption model, rather than the Langmuir adsorption model, better fits the adsorption isotherm results. The adsorption kinetics also followed the pseudo-second-order kinetic model. Additionally, the engineered nanocomposite demonstrated antifungal activity against different fungi, as well as remarkable antibacterial activity against Gram-negative and Gram-positive bacteria. The synergistic combination of crystallinity, coherence of the ZnO-Ag core in the PPy matrix, and the negative zeta potential all contribute to this nanocomposite's high efficiency. Our results have significant consequences in the wastewater bioremediation field using a simple operation process.

Design and Characterization of a Novel ZnO–Ag/Polypyrrole Core–Shell Nanocomposite for Water Bioremediation