Surface Aspects of Semiconductor Photochemistry

Editorial of the Surfaces Special Issue entitled "Surface Aspects of Semiconductor Photochemistry", devoted to the 7th International Conference on Semiconductor Photochemistry (SP7), which was held on September 11-14, 2019 in Milano, Italy, with the active participation of more than 160 attendants in an intense program, including 12 plenary and keynote lectures, 60 oral presentations, 20 flash presentations by young authors and 2 poster sessions. This Special Issue well highlights the main aim of the SP7 conference to cover the current developments in the area of semiconductor photochemistry and photo(electro)catalysis, focusing specific attention on either new findings related to \u201chistorical\u201d TiO2-based materials or to up-to-date results obtained with emerging and promising semiconductor photo(electro)catalytic materials