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Effect of Mn ion on the visible light induced water oxidation activity of photosynthetic organ grana from spinach

Paper ID Volume ID Publish Year Pages File Format Full-Text
51623 46848 2008 4 PDF Available
Title
Effect of Mn ion on the visible light induced water oxidation activity of photosynthetic organ grana from spinach
Abstract

To develop the visible light induced hydrogen and oxygen production based on the water photolysis, 2,6-dichloroindophenol (DCIP) reduction based on the photoinduced water oxidation with oxygen evolved centre (OEC) of PSII in photosynthesis organ, grana from spinach was studied. It noted that manganese cluster consisted of four manganese ions in OEC, and the role and effect of manganese(II) and (III) ions on the DCIP reduction were investigated. By addition of manganese(III) acetate up to 80 μmol dm−3, the concentration of the reduced DCIP with irradiation was increased compared with the system in the absence of manganese(III) acetate. The activity of DCIP reduction in the presence of 80 μmol dm−3 manganese(III) acetate was 4.7 times higher than that in the absence of manganese(III) acetate. In contrast, the concentration of the reduced DCIP with irradiation was increased by addition of manganese(II) acetate up to 40 μmol dm−3 compared with the system in the absence of manganese(II) acetate. These results show that the DCIP photoreduction with grana was promoted by addition of manganese(III) or (II) ion.

Keywords
Artificial photosynthesis; Grana; Manganese ion; Oxygen evolved center (OEC); Photosystem II; Water photolysis
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Effect of Mn ion on the visible light induced water oxidation activity of photosynthetic organ grana from spinach
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 10, Issue 2, 15 November 2008, Pages 217–220
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us