Browsing by Author "Bonilla Caicedo, Leidy Johanna"
Now showing 1 - 1 of 1
Results Per Page
Sort Options
Item Estudio de la degradación fotocatalítica de contaminantes emergentes farmacéuticos por nanopartículas ecológicas de perovskita(Universidad Santiago de Cali, 2025) Bonilla Caicedo, Leidy Johanna; Morales Morales, Jimmy Alexander (Director)This study investigates the ultrasound-assisted synthesis of lanthanum ferrite (LaFeO) nanoparticles using molasses as a carbon matrix, which improves the dispersion of the material and its photocatalytic performance. A visible light lamp with a wavelength between 190 and 1100 nm was used to activate the photocatalytic properties, resulting in a material yield percentage assisted by ultrasound of 52.38% and assisted by mechanical stirring of 56.49%. In aqueous solutions of acetaminophen at a concentration of 70 ppm, 25% was obtained, at 20 ppm 33%, and at 50 ppm 72% degradation. The characterization of the nanoparticles revealed an orthorhombic crystalline phase of LaFeO, thus promoting the effectiveness of the photocatalyst. The use of the carbon matrix not only optimizes the catalyst surface but also improves its stability under different pH and catalyst loading conditions. Ultrasound assistance during synthesis resulted in a more uniform structure and improved photodegradation of the emerging contaminant. This innovative approach, utilizing an industrial waste product for nanoparticle synthesis, not only seeks to offer an effective solution for treating contaminated water but also presents a sustainable alternative for waste management. This work represents a significant advance in the development of more effective technologies to address emerging environmental contamination.