Utilización de electrodos de pasta de carbono para la evaluación fotoelectroquímica de materiales semiconductores: tio2 en soluciones cianuradas
Abstract
Las técnicas electroquímicas constituyen una herramienta útil para la evaluación de la actividad fotocatalítica de los semiconductores puesto que las reacciones que tienen lugar son de naturaleza redox. Con este fin, preparar electrodos de trabajo resulta de fundamental importancia para obtener resultados confiables y reproducibles. En este trabajo se describe la preparación de electrodos de TiO2-pasta de carbono y su evaluación en la fotoxidación de cianuro mediante las técnicas de voltamperometría, cronoamperometría, resistencia a la polarización lineal y curvas de polarización de Tafel. Los resultados mostraron que este método de preparación de electrodos permite la adecuada evaluación fotoelectroquímica de semiconductores.Downloads
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