Degradación fotocatalítica de fluoresceína sódica con óxido de titanio

• Autores: Miguel Ángel Gutiérrez Díaz, Jaime Jiménez Becerril, Irma García Sosa, Miguel Ángel Valenzuela
• Localización: CIENCIA ergo-sum, ISSN 1405-0269, Vol. 10, Nº. 1, 2003, págs. 80-84
• Idioma: español
• Títulos paralelos:
  • Photocatalytic Degradation of Sodium Fluorescein Using Titanium Oxide
• Enlaces
  • Texto completo (pdf)
• Resumen
  • español

    Se presenta un experimento sencillo de fotocatálisis, el cual consiste en preparar diferentes concentraciones de un compuesto orgánico a degradar, en este caso sal sódica de fluoresceína, adicionándoles óxido de titanio e irradiándolas con luz UV de 354 nm, en agitación continua y burbujeo de aire. La reacción se llevó a cabo en un cuarto oscuro y a temperatura ambiente. Los resultados obtenidos se graficaron para observar la cantidad de compuesto degradado.

  • English

    Heterogeneous photocatalytic degradation of toxic organics compounds has been intensively studied as an alternative treatment for wastewater, groundwater and drinking water. This work presents a simple experiment that illustrates the photo catalytic process. The experiment entailed preparing solutions of several concentrations of an organic compound to degrade, in this case sodium fluorescein. Aliquots of solution were taken and mixed with titanium oxide and irradiated with UV light of 354 nm, during continuous stirring and air bubbling. The reaction was carried out in a dark room and at room temperature. Some aliquots were taken to measure, by UV-vis spectrometry, the amount of sodium fluorescein remanent in the solution. The results obtained were analyzed as the photocatalytic degradation of fluorescein and the amount degraded was calculated.