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Green Synthesis of Iron Nanoparticles (FeNPs) using Aqueous Extract of Murraya koenigii Leaves: Synthesis Mechanism, Characterization Process and Antibacterial Activity
- Source: Nanoscience & Nanotechnology-Asia, Volume 14, Issue 4, Aug 2024, E22106812320014
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- 05 May 2024
- 08 Aug 2024
- 03 Sep 2024
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Abstract
Green synthesis is the method of producing metal and metal oxide nanoparticles from the extraction of plant materials. This study aims to synthesize iron nanoparticles (FeNPs) using an aqueous extract of Murraya koenigii leaves as an eco-friendly approach and subsequently characterize the synthesized FeNPs to understand their structural, morphological, compositional and optical properties.
The aqueous extract of Murraya koenigii leaves and 0.1M ferric chloride solution were combined at room temperature in a 1:2 volume ratio. The synthesized FeNPs were characterized using analysis methods of Scanning Electron Microscope (SEM), Energy Dispersive X-ray (EDX), X-ray diffraction (XRD), Fourier Transform Infrared (FTIR), UV-visible (UV-vis) and Tacu plot.
SEM images discovered that the particles were in the nanoscale range and their morphology appeared spherical shape. The EDX study was used to identify the composition of the elements of synthesized FeNPs. The crystal structure of the synthesised FeNPs was shown in the XRD spectrum. The FTIR spectrum showed many distinctive bands and the bands revealed active components for functional groups in the synthesized FeNPs. The UV-vis spectrum revealed an absorbance peak range of 240-310 nm for FeNP formation with a maximal peak at 273 nm. The band gap energy of the synthesized FeNPs was found to be 2.07 eV using the Tauc plot method. Also, the synthesized FeNPs exhibited a significant antibacterial effect against bacterial pathogens.
The results of the characterization methods strongly suggest that the aqueous leaf extract of Murraya koenigii can be used as a reducing and stabilizing agent in the green synthesis of FeNPs.