TiO2 NANOPARTICLES SUPPORTED ON HIERARCHICAL MESO/MACROPOROUS SiO2 SPHERES FOR PHOTOCATALYTIC APPLICATIONS

FUENTES, KEYLA M.; SANCHEZ DOMINGUEZ, MARGARITA; ALDABE BILMES, SARA

Semiconductor Photocatalysis (ISBN 978-1-78985-088-8)

IntechOpen

Año: 2019;

Supporting a photocatalyst, such as titania nanoparticles (TiO2 NPs), is a goodstrategy to improve its performance since it can facilitate the photocatalyst recoveryfrom the aqueous media and it provides a high surface area for pollutant adsorption.Among the several advanced functional materials used as TiO2 NP support, thehierarchical meso/macroporous SiO2 spheres not only show the advantages associated to its chemical nature but also the dendritic fibrous structure provides a porousnetwork that offers many benefits to be exploited in optical and catalytic devices.In this chapter, different synthetic approaches to design hierarchical meso/macroporous silica and the strategies to support TiO2 NPs regarding the photocatalyticperformance of these materials are shown.