Green preparation of antibacterial agents: MIL-101(Cr) synthesized from PET bottles recycling and its functionalization with silver nanoparticles

The synthesis of antibacterial agents from recyclable waste is challenging. Here, we provide a cost-effective synthesis for MIL-101(Cr) from PET bottles recycling and simulated Cr6+ waste. Then, we used Nigella stevia for green synthesis of silver nanoparticles (Ag NPs) onto MIL-101(Cr) to prepare the G-MIL-101(Cr)@Ag composite, which was studied as an antibacterial agent against multidrug-resistant (MDR) bacteria. Different characterization techniques were used to analyze the composite. The antibacterial activities of the composite were then studied against Pseudomonas aeruginosa, Klebsiella pneumoniae, Staphylococcus aureus, and Bacillus spp. The results show that MIL-101(Cr)@Ag can effectively inhibit the bacterial isolates growth of all MDR bacteria used in this study. This approach provides the possibility of design antibacterial agents from recyclable wastes at low cost for the widespread use of MDR.