Sunlight-Driven Photocatalytic Degradation of Ibuprofen and Ciprofloxacin Using Microwave-Assisted Green Synthesized Mn2O3 Nanoparticles Decorated with Cucumis meloPeel Extract
摘要
Microwave-assisted synthesis is a green chemistry approach for the ecological production of nanoparticles (NPs). In the present study, manganese oxide (Mn2O3) NPs were synthesized using the ethanolic extract of Cucumis melo as a reducing and stabilizing agent. The structural and morphological characteristics of the synthesized NPswere thoroughly evaluated. To enhance crystallinity, the NPswere annealed at 700 °C, which significantly affected their structural and morphological properties. Characterization was carried out using UV–Visible spectroscopy, XRD, FTIR, and SEM. GC–MS analysis of the ethanolic extract divulge the presence of bioactive phytochemicals that likely contributed to the formation of the NPs. SEM analysis indicated that the Mn2O3NPs were almost spherical, with an average particle size innm. XRD analysis confirmed theamorphous nature of the nanoparticles. The photocatalytic efficiency of green synthesized Mn2O3was assessed by degrading ibuprofen (IBP) and ciprofloxacin (CIP) under optimized conditions: 20 ppm drug concentration, 1.5 g/L catalyst dose, pH 3, temperature60 °C, contact times of 120 and 160 min. Maximum degradation efficiency reached 97.6%(IBP) and 98.37% (CIP).This eco-friendly and cost-effective approach highlights the novelty and potential of Mn2O3NPs in removing pharmaceutical contaminants from wastewater.