ABSTRACT

In response to the environmental challenges posed by paint industry effluents, this study explores the feasibility and efficacy of utilizing magnesium oxide (MgO) nanoparticles synthesized from Hunteria Umbellata leaves for treatment. The objectives encompass a comprehensive approach, including the collection and identification of suitable leaves, green synthesis of MgO nanoparticles, characterization of the nanoparticles, analysis of paint industry effluent, application of MgO nanoparticles for treatment, and evaluation of treatment effectiveness. Hunteria umbellata leaves, collected from Benin City, Edo State, Nigeria, underwent drying and processing for nanoparticle synthesis. Fourier Transform Infrared Spectroscopy (FTIR) analysis revealed distinctive absorption bands indicating Mg-O interactions and residual organic compounds on the synthesized MgO nanoparticles. Response Surface Methodology (RSM) facilitated the exploration of factors influencing pigment removal efficiency, highlighting significant influences of MgO-NPs dosage, time, and water pH. Dynamic Light Scattering (DLS) measurements exhibited a hydrodynamic diameter exceeding 119 nm for MgO-NPs. These findings contribute to the understanding of MgO-NPs synthesis, their application in pigment removal, and underscore the importance of comprehensive characterization techniques in nanoparticle technology.