Green synthesis of metal oxide nanoparticles using Moringa: Characterisation of environmentally friendly nanoparticles

This research focuses on the development of metal oxide nanoparticles. Using moringa plant extract as a natural reducing agent, within the framework of green synthesis techniques, the primary goal is to evaluate the physical and chemical properties of these particles, as well as to study their antibacterial effectiveness, opening up prospects for sustainable environmental and medical applications. The nanoparticles were prepared by mixing a solution of Zinc nitrate, copper sulfate, silver nitrate, and manganese sulfate with moringa leaf extract and then subjected to suitable thermal conditions. Multiple analytical techniques were employed to characterise the materials, including UV-Vis spectroscopy to determine optical absorption and measure particle size. FTIR to identify functional groups attached to the particle surface. The results showed that the prepared nanoparticles possessed distinctive optical and crystalline properties, with a regular nanoscale size. Analyses confirmed the presence of effective plant-based ligands on the surface. The particles also demonstrated remarkable antibacterial activity, enhancing their potential for medical and environmental applications and confirming the feasibility of green synthesis as a safe and sustainable alternative.