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Article Abstract
This study achieved a nanocomposite structure of nickel oxide (NiO)/titanium dioxide (TiO₂) heterojunction on a TiO₂ film surface. The photocatalytic activity of this structure evaluated by decomposing methylene blue (MB) solution was strongly correlated to the conductive behavior of the NiO film. A -type NiO film of high concentration in contact with the native -type TiO₂ film, which resulted in a strong inner electrical field to effectively separate the photogenerated electron-hole pairs, exhibited a much better photocatalytic activity than the controlled TiO₂ film. In addition, the photocatalytic activity of the NiO/TiO₂ nanocomposite structure was enhanced as the thickness of the -NiO film decreased, which was beneficial for the migration of the photogenerated carriers to the structural surface.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5455623 | PMC |
| http://dx.doi.org/10.3390/ma8074273 | DOI Listing |
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