GREEN SYNTHESIS OF SILVER NANOPARTICLES USING PIPER CHAUDOCANUM STEM EXTRACT FOR DETECTION OF TRACE Fe3+ IN WATER AND ANTIBACTERIAL ACTIVITY

Abstract

The synthesis of silver nanoparticles (AgNPs) using plant extracts has been extensively studied for the application of colorimetric detection of metal ions and antibacterial activity. In this study, silver nanoparticles were synthesized using Piper chaudocanum extract, application for the detection of Fe³⁺ ions. The structure, optical properties and morphology of AgNPs were determined by UV-Vis spectroscopy, FTIR, Raman, XRD, and SEM. The silver nanoparticles are spherical in shape, stabilized by organic compounds present in the Piper chaudocanum extract, with a size range of approximately 4-17 nm. The detection capability to Fe³⁺ ions by AgNPs was confirmed using UV-Vis spectroscopy. The silver nanoparticles can be utilized for highly sensitive colorimetric detection of Fe³⁺ with LOD and LOQ values of 0.372 μM and 1.244 μM, respectively. The concentration of Fe³⁺ in the domestic water sample determined by AgNPs was 30.0 μM. This result affirms the potential use of Piper chaudocanum extract for the synthesis silver nanoparticles and their application in the colorimetric detection of Fe³⁺ ions in real samples. Moreover, biosynthesized AgNPs exhibited good antibacterial activity.