Synthesis of Silver Nanoparticles Using Syzygium malaccense Fruit Extract and Evaluation of Their Catalytic Activity and Antibacterial Properties

In this study, green synthesis of silver nanoparticles, an aqueous Syzygium malaccense fruit extract, was employed as a reducing agent. UV–Visible spectroscopy, X-ray diffraction (XRD), UV–Visible, Scanning Electron Microscope (SEM), Elemental Dispersive X-ray Analysis (EDX), and Transmission Electron Microscopy (TEM) were used to examine the nanoparticles. The synthesized nanoparticle's surface plasmon resonance peak was measured at 438 nm. The absorption spectra of Syzygium malaccense fruit extract exhibit a blue shift with decreasing particle size as the concentration increases. The silver nanoparticles reveal it agglomerated spherical nanoparticles. The silver nanoparticles inhibit both gram-positive and gram-negative bacteria. The silver nanoparticles have higher catalytic activity of 94% at the end of 120 min. This natural silver nanoparticle synthesis technique makes a significant contribution to green synthesis and nanotechnology by eliminating the use of harmful and toxic solvents and trash.