Heterogeneous photocatalysis based on TiO2, as advanced oxidation process, has proven to be an effective
application in the removal of aqueous and gaseous pollutants. The use of solar energy to degrade pollutants
by photocatalysis represents an economic and sustainable alternative. This research focuses on the
photodegradation of pollutants from wastewater by TiO2 nanostructured loaded into a natural mineral
material (volcanic soil of black lava). The activity of the photocatalyst was evaluated in different conditions
of radiation under sunlight. The results showed that the material is an efficient photocatalyst under
visible light, obtaining 95% degradation of wastewater pollutant under sunlight irradiation after only 2 h,
and can be proposed for its use in photoreactors for treatment of high-volume of wastewater. The studied
material can be used for advanced oxidation treatments in photoreaction systems with continuous flow,
thereby resolving the problems arising from the use of conventional powder photocatalytic systems.