1P253 Visible light-driven water oxidation by Photosystem II-immobilized electrodes(18B. Photobiology: Photosynthesis,Poster)
نویسندگان
چکیده
منابع مشابه
Light-induced water oxidation in photosystem II.
The photosystem II core complex (PSIIcc) is the key enzyme of oxygenic photosynthesis, as it catalyzes the light-induced oxidation of water to form dioxgyen and protons. It is located in the thylakoid membrane of cyanobacteria, algae, and plants and consists of 20 protein subunits binding about 100 cofactors. In this review, we discuss what is presently known about the "donor side" of PSIIcc, c...
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Photosynthetic water oxidation is catalyzed by the Mn4CaO5 cluster of photosystem II. The assembly of the Mn4O5Ca requires light and involves a sequential process called photoactivation. This process harnesses the charge-separation of the photochemical reaction center and the coordination environment provided by the amino acid side chains of the protein to oxidize and organize the incoming mang...
متن کاملVisible light-driven water oxidation with a subporphyrin sensitizer and a water oxidation catalyst.
A new subporphyrin was synthesized for use as a molecular sensitizer in electrochemical and dye-sensitized photoelectrochemical water oxidation. A photoelectrochemical cell with a TiO2 electrode modified with the sensitizer and a molecular water oxidation catalyst generated higher photocurrent than reference cells that have electrodes modified with either the photosensitizer or the catalyst und...
متن کاملWater oxidation chemistry of photosystem II.
Photosystem II (PSII) uses light energy to split water into protons, electrons and O2. In this reaction, nature has solved the difficult chemical problem of efficient four-electron oxidation of water to yield O2 without significant amounts of reactive intermediate species such as superoxide, hydrogen peroxide and hydroxyl radicals. In order to use nature's solution for the design of artificial ...
متن کاملEfficient visible light-driven water oxidation catalyzed by an all-inorganic copper-containing polyoxometalate.
[Cu5(OH)4(H2O)2(A-α-SiW9O33)2](10-) (1) was tested as the first copper-containing polyoxometalate catalyst for O2 production via visible light-driven water oxidation. Multiple experiments confirm that 1 is an active and dominant catalyst during water oxidation.
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ژورنال
عنوان ژورنال: Seibutsu Butsuri
سال: 2013
ISSN: 0582-4052,1347-4219
DOI: 10.2142/biophys.53.s147_6