Title: Irvingia Gabonensis Mediated Green Copper Nanoparticles Synthesis For Corrosion Control On Mild Steel In Seawater.
Authors: William-Porbeni, D., Ogbereyo, S, Osaribie, N.A. & Adochie,G.
Volume: 10
Issue: 5
Pages: 42-53
Publication Date: 2026/05/28
Abstract:
Green nanoparticles have evolved as a sustainable and eco-friendly alternative to typical conventional methods. This study presents research on the synthesis of plant extract nanoparticles using Irvingia gabonensis leaves extract and Copper(II)nitrate as the precursor metallic salt to synthesize nanoparticles for corrosion inhibition on mild steel in seawater. The Irvingia gabonensis plant extract was characterized and found to contain alkaloids, tannins, Saponins, terpenoids and Anthraquinone glycosides. Synthesized nanoparticles were characterized by visual observation, Uv-Visible spectroscopy, FTIR, SEM, EDX for estimation of elemental composition and X-ray diffraction for estimating size of nanoparticles together with Scherer's equation. Color change of extract solution from leafy green to dark brown minutes after formation was the first indicator of nanoparticles formation. FTIR showed the presence of alcohol and phenolic groups at 3276.3 cm-1, single bonds alkanes and aldehydes at 2922.2 cm-1 and 2855.1 cm-1. Alkyls and Nitriles at a band peak of 2172.1cm-1 suggests the presence of triple bond groups. SEM micrographs showed irregular shaped nanoparticles with agglomeration. XRD analysis and the scherrers equation estimated the average crystallite size of the nanoparticles to be 0.699nm. Corrosion inhibition study recorded a maximum inhibition efficiency of 62.28% at the highest concentration studied. Irvingia gabonensis leave extract nanoparticles could be an effective alternative for corrosion inhibition in aqueous corrosive media.