Process for the sensitization of an oxidation/reduction photocatalyst, and photocatalyst thus obtained
First Claim
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1. A process for the sensitization of a titanium oxide-based oxidation/reduction photocatalyst, which comprises chemically bonding to its surface a chromophore consisting of a fragment of a complex of a transition metal with a ligand of the bipyridyl or phenanthrolyl type, causing the light absorption band of the catalyst to shift into the visible region.
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Abstract
A photocatalyst for photodecomposition of liquids is sensitized to visible light by chemically bonding to the catalyst a complex of a transition metal with a bipyridyl or phenanthrolyl type ligand.
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Citations
8 Claims
- 1. A process for the sensitization of a titanium oxide-based oxidation/reduction photocatalyst, which comprises chemically bonding to its surface a chromophore consisting of a fragment of a complex of a transition metal with a ligand of the bipyridyl or phenanthrolyl type, causing the light absorption band of the catalyst to shift into the visible region.
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6. A process for the sensitization of a semiconductor-based oxidation/reduction photocatalyst, which comprises chemically bonding to its surface a chromophore consisting of a fragment of a complex of a transition metal with a ligand of the bipyridyl or phenanthrolyl type, causing the light absorption band of the catalyst to shift into the visible region.
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7. A process for the sensitization of a titanium oxide-based oxidation/reduction photocatalyst which comprises chemically bonding to its surface a chromophore consisting of a fragment selected from the group consisting of ruthium, chromium and iron complexes with the ligand diisopropyl 2,2'"'"'-bipyridyl-4,4'"'"'-dicarboxylate, causing the light absorption band of the catalyst to shift into the visible region.
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