Preparation, Characterization and Antimicrobial Study of Zeolite Y - MOF Nanoporous Coordination Polymer Nanocomposite

Zeolite Y, MIL-53, and zeolite – MOF nanocomposite were synthesized. Synthesized samples were evaluated using X-ray diffraction, scanning electron microscopy, energy dispersive X-Ray spectroscopy and transmission electron microscopy. The XRD profiles of the zeolite Y /MIL-53 nanoporous coordination polymer nanocomposite depicted diffraction peaks that had been ascribed to individual MIL-53 MOF and zeolite Y. Based on the transmission electron microscopy result of the nanocomposite, it was determined that the compound was synthesized with a core-shell structure. TEM image of the consisted of two regions. One dark region related to Zeolite Y with a diameter of about 500 nm and light part with an average diameter of 60 nm that related to the MIL-53 shell. The EDX spectra of the core@shell sample show that the nanocomposite contained O, C, Al, Na, and Si elements. In this research, disk diffusion method and MIC were used to evaluate the antibacterial activity of prepared samples on gram-negative (E. coli and Pseudomonas aeruginosa) and gram-positive (S. aureus) compared to standard commercial antibiotic disks. Nanocomposite exhibited antibacterial activity with minimal inhibitory concentration of 55 µg/mL against E. coli, Pseudomonas aeruginosa and S. aureus.