https://doi.org/10.1351/goldbook.13993
Photocatalytic production of substances from simple compounds (e.g., \(\ce{H2}\) and \(\ce{O2}\) from water, \(\ce{H2}\) from hydrogen sulfide, etc.) using ultraviolet, visible, or infrared radiation absorbed by chromophoric systems, often included in microheterogeneous media, mimicking the action of antennae and reaction centres in natural photosynthetic organisms.
Note: Antennae (also called light-harvesting centres) are molecular structures enhancing the wavelength range and sensitivity of the photosynthetic units, due to an increase in light absorption.