Executive Summary : | Hydrogen energy is a future green fuel with zero carbon emissions, and photocatalysis is a clean and economical way to produce hydrogen and CO₂ reductions or conversion into other fine chemicals. Researchers are looking to develop robust and cost-effective photocatalysts with highly efficient photocatalytic activity. Porous organic materials like metal-organic frameworks (MOFs) and covalent organic frameworks (COFs) are promising candidates for photocatalysis applications due to their highly ordered structures, high thermal stability, and large surface area. Porphyrin compounds are well-known for their light-harvesting ability in the visible region and their redox activity, making them ideal for photocatalysis. Incorporating porphyrins into porous organic materials can boost their chemical and photophysical properties, leading to improved photocatalytic performance. This project aims to develop porphyrin-based MOF and COF systems as photocatalysts for light-driven hydrogen evolution and CO₂ reduction. Carboxy-containing porphyrins will be used for synthesizing MOF systems, while amine-containing porphyrin will give porphyrin-based COF systems. Porphyrin systems will be connected to inorganic or organic linkers, which will differ based on the application. For CO₂ reduction, a CO₂-philic organic linker can be used, while for hydrogen evolution, an electron-accepting linker will be used. Metalloporphyrins with various metals will give different catalytic activity, and their comparison predicts the influence of metal on catalytic application. The development of porphyrin-based MOF and COF systems will create a library of new types of photocatalysts for photocatalytic hydrogen evolution and CO₂ reduction. |