Envíe este artículo por correo electrónico Efectos de dos tratamientos químicos sobre las propiedades ópticas de la fase cristalina de rutilo
Resumen
Las propiedades ópticas de los fotocatalizadores están relacionadas con la brecha de energía, ya que impacta en los resultados de efectividad de remoción de contaminantes durante la irradiación. Entre los fotocatalizadores, la anatasa se ha estudiado más que el rutilo. En el presente trabajo se realizaron tratamientos químicos en rutilo con el objetivo de desplazar la brecha de energía hacia la zona visible del espectro electromagnético. Los resultados sugieren que la impregnación incipiente con sales de Fe desplaza efectivamente la brecha de energía a la zona visible, con una disminución significativa en los niveles máximos de absorbancia. Mientras la reducción parcial del rutilo aumenta la absorbancia, cuando se realiza a una temperatura de 250 °C.
Recibido: 06/09/2022 Revisado: 07/10/2022 Aceptado: 18/10/2022
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