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Carbon-doped titanium dioxide is an effective photocatalyst.(Materials)
- Article from:
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Advanced Ceramics Report
- Article date:
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December 1, 2003
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Copyright informationCOPYRIGHT 2003 International Newsletters. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Researchers at the University of Erlangen-Numberg, Germany, have developed a titanium dioxide-based photocatalyst that can use sunlight to break down pollutants in a highly efficient manner. According to the researchers, the semiconductor photocatalyst's efficiency derives from its ability to transform a larger fraction of sunlight into electrical energy than traditional versions.
In semiconductor photocatalysis, the absorption of light energy causes the formation of charge carriers (electrons or so-called holes) on the surface of the semiconductor. Holes are places where electrons are missing, so they can be considered as positive-charge carriers. These holes can be ...
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