“…Additionally, porphyrin-based scaffolds constitute a valuable tool in photocatalysis due to the facile modulation of their redox potentials through structural changes in their architecture, providing extensive adaptation capabilities for different photo-driven applications. Other tunable properties related to their structure are light absorption, lifetime of the excited singlet state, stability, aggregation bias and regeneration ability after photooxidation, enabling a complete control of the performance through porphyrin engineering [ 26 ]. For all these attributes, these structures are considered powerful candidates for photosensitization, and their performance has recently been proved in the context of H 2 production [ 14 , 18 , 23 , 27 ], photocatalytic degradation of organic pollutants [ 23 ] and CO 2 reduction [ 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 ].…”