Electrochemical Aspects of Photocatalysis:: Application to Detoxification and Disinfection Scenarios

K. Rajeshwar ^[1] ; J. G. Ibanez ^[1]
1. [1] University of Texas at Arlington
  
  University of Texas at Arlington
  
  Estados Unidos
Localización: Journal of chemical education, ISSN 0021-9584, Vol. 72, Nº 11 (November), 1995, págs. 1044-1049
Idioma: inglés
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Resumen
- Here electrochemical concepts are used to provide a unified discussion on semiconductor photocatalysis. The behavior of irradiated TiO2 particles is analyzed in terms of the chemical role of electrons and holes at the photocatalyst particle/medium interface, the influence of experimental variables, and the dynamics of conjugate chemical reactions undergone by the photogenerated electron-hole pairs. These ideas have relevance to the use of irradiated TiO2 for the treatment of environmental pollutants.