Green and Chemical Synthesis of Magnetite Nanoparticles for Corrosion Inhibition Applications

Abstract

The contribution of this research is production, diagnosis, and characterization of iron oxide (Fe₃O₄) nanoparticles in new applications at the lowest possible cost and in straightforward methods. Pomegranate peel extract and reducing agent were utilized in the synthesis of iron oxide nanoparticles, and characterization was done. The results show that the compound in green synthesis had smaller particles than those in the chemical synthesis. The particle size of green synthesized nanoparticles is between 1 and 3 nm smaller than the chemically synthesized 1 to 4 nm, while an absorption peak was indicated in the range of 500 cm^-1 for Fe₃O₄ appearing in both methods. Chemical nanoparticles were clustered while the green nanoparticles were uncertain because they formed with a biological material. The chemical and green nanoparticles were studied by the weight loss of carbon steel when immersed in the inhibitor solution at different temperature degrees, at low temperature degrees, the results show that green inhibitors have the ability to reduce the problem of corrosion. The numerous changes on the metal surface led to a decrease in the inhibitor efficiency as the temperature increased indicating that adsorption of inhibitor species on the C-steel surface is merely physical.