NANOSTRUCTURED PHOTOCATALYSTS AND DOPED WIDE-BANDGAP SEMICONDUCTORS
First Claim
1. A catalyst for reduction of carbon dioxide and water comprising:
- nanostructured titanium dioxide; and
one of (a) copper oxide nanoparticles, (b) copper indium sulfide nanoparticles, (c) molybdenum disulfide nanosheets, and (d) cadmium sulfide nanoparticles.
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Accused Products
Abstract
Photocatalysts for reduction of carbon dioxide and water are provided that can be tuned to produce certain reaction products, including hydrogen, alcohol, aldehyde, and/or hydrocarbon products. These photocatalysts can form artificial photosystems and can be incorporated into devices that reduce carbon dioxide and water for production of various fuels. Doped wide-bandgap semiconductor nanotubes are provided along with synthesis methods. A variety of optical, electronic and magnetic dopants (substitutional and interstitial, energetically shallow and deep) are incorporated into hollow nanotubes, ranging from a few dopants to heavily-doped semiconductors. The resulting wide-bandgap nanotubes, with desired electronic (p- or n-doped), optical (ultraviolet bandgap to infrared absorption in co-doped nanotubes), and magnetic (from paramagnetic to ferromagnetic) properties, can be used in photovoltaics, display technologies, photocatalysis, and spintronic applications.
19 Citations
28 Claims
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1. A catalyst for reduction of carbon dioxide and water comprising:
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nanostructured titanium dioxide; and one of (a) copper oxide nanoparticles, (b) copper indium sulfide nanoparticles, (c) molybdenum disulfide nanosheets, and (d) cadmium sulfide nanoparticles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 26)
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18. A catalyst for reduction of carbon dioxide and water comprising:
nanostructured cadmium sulfide. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 27)
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28-77. -77. (canceled)
Specification