Journal
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
Volume 91, Issue 2, Pages 660-663Publisher
BLACKWELL PUBLISHING
DOI: 10.1111/j.1551-2916.2007.02171.x
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Nitrogen-doped titanium oxide inverse opal structure was synthesized to combine both chemical and physical modifications on n-TiO2 by the polystyrene sphere self-assembly followed by a sol-gel process. Enhanced visible-light absorption and subsequently enhanced photodegradation efficiency were observed in this unique structure, which can be attributed to both nitrogen-doping effect and inverse opal structure effect. Our work suggests that the coupling of photonic band gap structure with photocatalytic materials is a promising approach to achieve maximum enhancement for various photocatalytic materials, especially for environmental applications and solar cell devices.
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