Green synthesis of Ag-doped Syzygium malaccense nanoparticles: enhancing antibacterial efficacy and photocatalytic performance

In recent years, the demand for ecologically friendly synthesis of nanoparticles has grown significantly due to their potential uses in variety of sectors such as medicine and environmental remediation. In this analysis, we present a sustainable approach for the synthesis of Ag-doped Syzygium malaccense (Ag-SM) nanoparticles with the help of leaf extract as a reductant. The synthesized nanoparticles were characterized for their morphology, structure, and antibacterial properties. Different Syzygium malaccense leaf extract concentrations such as 5, 10, and 15 (ml) were used to create silver nanoparticles. The synthesized AgNPs (silver nanoparticles) have four diffraction peaks in the planes (111), (200), (311), and (222), which correspond to the face-centered cubic phase. Vibrations of certain functional groups of biomolecules found in plant leaves were evaluated using FTIR. In UV–Vis spectra, the SPR bands of AgNPs occurred between the range 350 and 390 nm. Morphological study verified the spherical form of Ag nanoparticles. With being exposed to visible light, the synergistic influence of structural and morphological parameters results in increased photodegradation efficiency of 72%, 75%, and 84% (5 ml, 10 ml, and 15 ml) for cationic methylene blue dye. The Ag nanoparticles synthesized were investigated for their antibacterial properties, specifically with Staphylococcus aureus and Escherichia coli. It may be inferred from the current work that AgNP-doped Syzygium malaccense leaf extract shows outstanding environmental and medical applications.

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