Magnesium oxide nanoparticles (MgONPs) synthesized by efficient green approach have unique physiochemical properties. In this study, MgONPs are with bract extract of Musa acuminate, an agro waste. The surface plasmon resonance at 450 nm in UV spectrum and FTIR peaks 601 890 cm−1 confirmed the presence MgONPs. XRD pattern revealed high crystallinity intense orientation peak 111, size was 13 nm. ...