Structured Semiconductors in Photocatalysis - Hardcoverby Jorge Bedia (Guest Editor), Carolina Belver (Guest Editor) Photocatalysis represents an interesting approach for different applications, with the possibility of using sunlight as a sustainable and renewable source of energy. This technology is based on the use of a semiconductor that can be excited by light with an energy higher than its band gap, inducing the formation of energy rich electron hole pairs that can be involved in redox reactions.