Optical Properties of Semiconducting Nanostructures for Photocatalysis: Fundamentals, Materials Design, and Applications investigates the most important factors in improving the photocatalytic process of nanostructures. The book focuses on the key parameters that define the effective factors in the photocatalytic process by a nanostructured semiconductor: bandgap energy, structural defects, morphology, size, lifetime of the electron-hole pair created in the semiconductor by photon radiation, quantum efficiency of the nanostructured semiconductor, and surface porosity. Photocatalytic materials explored include metal-oxide and metal-chalcogenide based materials, graphene, graphite carbon nitride (g-C3N4) as a metal-free semiconductor, carbon/semiconductor nanocomposites, inorganic/organic nanocomposites, and noble metals to increase the efficiency of photocatalytic properties. This variety of semiconductor materials ensures it will be essential reading for researchers and students in the field of photocatalysis.