Process for the dissociation of water into hydrogen and oxygen
This article is about the photocatalytic system. For related systems, see Electrolysis of water and Photoelectrolysis of water.
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Photocatalytic water splitting is a process that uses photocatalysis for the dissociation of water (H2O) into hydrogen (H 2) and oxygen (O 2). The inputs are light energy (photons), water, and a catalyst(s). The process is inspired by Photosynthesis, which converts water and carbon dioxide into oxygen and carbohydrates. Water splitting using solar radiation has not been commercialized.[1] Photocatalytic water splitting is done by dispersing photocatalyst particles in water or depositing them on a substrate, unlike Photoelectrochemical cell, which are assembled into a cell with a photoelectrode.[2] Hydrogen fuel production using water and light (photocatalytic water splitting), instead of petroleum, is an important renewable energy strategy.
^Kudo, Akihiko; Miseki, Yugo (2009). "Heterogeneous photocatalyst materials for water splitting". Chem. Soc. Rev. 38 (1): 253–278. doi:10.1039/b800489g. PMID 19088977.
^Kim, Jin Hyun; Hansora, Dharmesh; Sharma, Pankaj; Jang, Ji-Wook; Lee, Jae Sung (2019). "Toward practical solar hydrogen production – an artificial photosynthetic leaf-to-farm challenge". Chemical Society Reviews. 48 (7): 1908–1971. doi:10.1039/c8cs00699g. PMID 30855624.
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