Visible Light-induced Oxygen Generation and Cyclic Water Cleavage Sensitized by Porphyrins |
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| Authors: | Enrico Borgarello Kuppuswamy Kalyanasundaram Yohmei Okuno Michael Grtzel |
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| Institution: | Enrico Borgarello,Kuppuswamy Kalyanasundaram,Yohmei Okuno,Michael Grätzel |
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| Abstract: | Zinctetramethylpyridylporphyrin (ZnTMPyP4+) in acidic aqueous solution sensitizes efficiently oxygen generation by visible light in the presence of acceptors such as Fe3+ - and Ag+-ions and colloidal RuO2/TiO2 redox catalyst. Hydrogen and oxygen are cogenerated under visible light illumination of ZnTMPyP4+ solutions when a bifunctional catalyst (Pt and RuO2 codeposited onto TiO2) is employed. |
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