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Highly efficient photocatalytic oxygenation reactions using water as an oxygen source

Title
Highly efficient photocatalytic oxygenation reactions using water as an oxygen source
Authors
Fukuzumi S.Kishi T.Kotani H.Lee Y.-M.Nam W.
Ewha Authors
남원우Shunichi Fukuzumi이용민
SCOPUS Author ID
남원우scopus; Shunichi Fukuzumiscopus; 이용민scopusscopus
Issue Date
2011
Journal Title
Nature Chemistry
ISSN
1755-4330JCR Link
Citation
vol. 3, no. 1, pp. 38 - 41
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
The effective utilization of solar energy requires photocatalytic reactions with high quantum efficiency. Water is the most abundant reactant that can be used as an oxygen source in efficient photocatalytic reactions, just as nature uses water in an oxygenic photosynthesis. We report that photocatalytic oxygenation of organic substrates such as sodium p-styrene sulfonate occurs with nearly 100% quantum efficiency using manganese(III) porphyrins as an oxygenation catalyst, [Ru II(bpy) 3] 2+ (bpy = 2,2′2-bipyridine) as a photosensitized electron-transfer catalyst, [Co III(NH 3) 5Cl] 2+ as a low-cost and weak one-electron oxidant, and water as an oxygen source in a phosphate buffer solution (pH 7.4). A high-valent manganese-oxo porphyrin is proposed as an active oxidant that effects the oxygenation reactions. © 2011 Macmillan Publishers Limited. All rights reserved.
DOI
10.1038/nchem.905
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자연과학대학 > 화학·나노과학전공 > Journal papers
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