Figure 9.

The assembly of hybrid systems incorporating plasmonic NPs-TiO₂ presents good opportunities to develop LSPR-induced visible light active photocatalysts. (A) (i) The scheme shows the assembly of Silica-TiO₂ core-shell particles decorated with AuNPs as a LSPR-induced visible light active hybrid system; (ii) presents experimental measurements of the photocatalytic activity of the hybrid system; and (iii) contains a schematic representation of the photocatalysis mechanism. Adapted with permission from Kochuveedu et al. J. Phys. Chem. C. 2012, 116, 2500–2506 Copyright 2012, American Chemical Society [97]. (B) (i) Anisotropic plasmonic NPs (a) nanospheres, (b) nanostars or (c) nanorods have been incorporated into the assembly of hybrid systems onto SiO₂ particles, followed by a TiO₂ NPs coating layer; (ii) shows experimental measurements of the photocatalytic activity of the different hybrid systems. Adapted with permission from Souza-Castillo et al. J. Phys. Chem. C. 2016, 120, 11690–11699 Copyright 2016, American Chemical Society [98]. (C) Colloidal methods have been reported to obtain Janus type silica particles, which can be harnessed to design novel hybrid visible light active photocatalysts as light-driven propelled micro/nanomotors. Adapted with permission from Rodriguez-Fernandez et al. Chemistry Open. 2012, 1, 90–95 Copyright 2012, WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim [99].