“…The great potential of heterogeneous photocatalysis has been demonstrated mainly in the treatment of industrial effluents and wastewater through the degradation of contaminants (Malato et al, 1997;Andreozzi et al, 1999;Malato et al, 2002;Sattler et al, 2004aSattler et al, , 2004bDuarte et al, 2005;Pons et al, 2007;Palmisano et al, 2007a;Machado et al, 2008). A significant number of these studies have focused on the photocatalytic properties of TiO 2 , suggesting a promising use of this material in heterogeneous photocatalysis (Mills & Hunte, 1997;Malato et al, 2002;Mills et al, 2002;Machado et al, 2003a;Machado et al, 2003b;Sattler et al, 2004aSattler et al, , 2004bDuarte et al, 2005;Palmisano et al, 2007a;Pons et al,2007;Machado et al, 2008;Oliveira et al, 2012) .…”