Structural, optical and morphological properties of Eu rare earth doped WO3 nanoparticles enhanced photocatalytic for waste water treatment and antibacterial activities

In this paper, summarise the characterization and synthesis of the pure and Eu:WO3 nanoparticles and their applications in photocatalytic and antibacterial activity. The monoclinic phase confirmed by the XRD analysis of the prepared specimens. SEM and HR-TEM scrutiny revealed nanoplate morphology scrutiny. EDS and XPS scrutiny confirmed the composition of elements of Eu, O, and W. FTIR analysis likely used for additional confirmation of functional groups. UV-Vis Analysis determined the band gap energy (Eg) of the nanoparticles, which decreased with raising the concentration of Eu doping. Optical properties of the band gap energy decreased with raising the concentration of Eu doping. Photocatalytic activity of the nanoparticles exhibited high photocatalytic activity, with a 95.3 % methylene blue (MB) dye split when exposed to visible light. The Eu:WO3 (7 wt%) nanoparticles showed the best photocatalytic property within 120 min. The Eu:WO3 (7 wt%) nanoparticles showed the maximum antibacterial efficiency against Staphylococcus aureus, with a zone of embarrassment of 19 mm. Overall, the study demonstrates the successful synthesis of Eu-doped WO3 nanoparticles and their potential applications in photo catalysis and antibacterial activity, with promising results particularly at higher Eu doping concentrations.