Titania photocatalysis beyond recombination: A critical review

Abstract

This short review paper shows the significance of recombination of a photoexcited electron and a hole in conduction and valence bands, respectively, of a titania photocatalyst, since recombination has not yet been fully understood and has not been evaluated adequately during the past several decades of research on heterogeneous photocatalysis. © 2013 by the authors; licensee MDPI, Basel, Switzerland.