Browsing by Author "Obeso Hurtado, Evelin Tatiana"
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Item Degradación del Fluconazol mediante Foto-Fenton: Aplicaciones en la agroindustria(Universidad Santiago de Cali, 2023) Martínez Sarria, Nicoll Andrea; Obeso Hurtado, Evelin Tatiana; Castro Narváez, Sandra Patricia (Directora)Fluconazole (FCZ) is one of the most widely used fungicides to combat plant pathogens which has a Fluconazole (FCZ) is one of the most widely used fungicides to combat plant pathogens which has a low degradation rate making it an emerging contaminant. The monitoring of FCZ photooxidation by UV-vis spectroscopy under different conditions such as pH, wavelength, contaminant vs. hydrogen peroxide ratio (FCZ:H2O2) and concentration of ions such as iron (II), sulfate, carbonate and phosphate establish pseudo first order kinetics by graphical method with rate constant between 0.1796 to 0.0604 min-1 and half-life between 2.41 and 11.40 min, depending on pH, FCZ:H2O2 ratio and type of ion present in the sample. The addition of carbonate (200 mg/L) to the FCZ sample evidenced a removal rate higher than 99% in 25min at pH 2.0 and a 1:4 FCZ:H2O2 ratio. Gas chromatographic studies coupled to mass detector (GC-MS) establish the obtaining of low molecular weight by-products.