Biosíntesis de nanopartículas de FeO mediante la acción reductora del extracto de cáscara de Mangifera indica y su aplicación en la remoción de metales pesados

The research provides a new and sustainable methodology for the synthesis of iron oxide nanoparticles (NP FeO) using the potential reducing action of Mangifera indica residues, specifically the peel, by means of an extract in 96% alcoholic solvent. The results preliminarily indicate the formation of nanostructures due to the surface plasmon resonance peak (RPS) located at 390.4 nm typical of this type of nanomaterial, also the colloidal stability was evaluated for 39 days, showing that a collective variation was not generated in the size of NP FeO. The formation mechanism was evaluated by FTIR, which has partially verified that metabolites present in the aromatic and aliphatic groups would be involved in the reduction of the precursor. The nanoparticles obtained have been applied to samples of agricultural soil contaminated with heavy metals (Cr, Cd and Pb) in order to evaluate the potential removal effect of metallic pollutants, this evaluation was carried out by atomic absorption, resulting highly efficient in removal chromium (100%), cadmium (81.48%) and slightly for lead (5.90%).