About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Nanotechnology for Energy, Environment, Electronics, Healthcare and Industry
|
| Presentation Title |
Green Synthesis of Nanostructured MgO Using Tropical Foliage Extracts (Siamweed) for Multifunctional Applications: Photocatalysis and Antimicrobial Properties |
| Author(s) |
Esther Uwidia Ikhuoria, Godfrey Osatohanmwen Otabor, Joshua Osaretin Onaifo, Ikhazuagbe Hilary Ifijen |
| On-Site Speaker (Planned) |
Esther Uwidia Ikhuoria |
| Abstract Scope |
Magnesium oxide nanoparticles (MgO NPs) have been shown to exhibit remarkable photocatalytic and antibacterial potency against reactive dyes and bacterial strains. In this study, MgO NPs were prepared using extracts from Siamweed (Chromolaena odorata) as bioreducing agents. The extract's phytochemical analysis revealed the presence of saponins (15.010 mg/g), flavonoids (9.626 mg/g), tannins (5.145 mg/g), and alkaloids (3.351%), which aided in the formation of a stable nanostructured alkaline earth oxide (MgO). The photocatalytic capabilities of the synthesized nanoparticles was assessed for the breakdown of methylene blue (MB), yielding degradation efficiencies of 92.82% after 6 hours. With a rapid degradation rate of 0.0056 min⁻¹, the degradation followed pseudo-first-order kinetics. The antimicrobial activity of the MgONPs was evaluated against Escherichia coli and Staphylococcus aureus. Reusability tests confirmed the sustainability of the synthesised MgONPs This study emphasised the potential of tropical foliage-mediated MgONPs as sustainable, multifunctional materials for environmental remediation and antimicrobial applications. |