Keywords
azul de metileno
fotodegradación
Química General
Química Ambiental
Química Verde.
How to Cite
Abstract
Los estudiantes de un curso de Química General por medio del análisis de fotografías tomadas con una cámara digital realizaron mediciones colorimétricas de disoluciones de azul de metileno a varias concentraciones, con la que construyeron una curva de calibración con una correlación de 0,9944. Esta fue empleada en la determinación de la concentración del colorante en muestras de disolución expuestas a la luz solar en diferentes períodos de tiempo para su degradación con TiO2 como catalizador. El método colorimétrico probado es fácil de usar y podría ser aplicado en laboratorios donde no se disponga un espectrofotómetro UV-Vis.
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