Journal
ADVANCED ENERGY MATERIALS
Volume 6, Issue 17, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.201600452
Keywords
black titania; electronic structures; nanoscale structures; photocatalysis; solar light absorption
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Funding
- NSF of China [61376056, 51502331]
- Science and Technology Commission of Shanghai [13JC1405700, 14520722000]
- Key Research Program of Chinese Academy of Sciences [KGZD-EW-T06]
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The photocatalytic activity of TiO2 has aroused a broad range of research effort since 1972. Although TiO2 has a very high efficiency in utilizing ultraviolet light, its overall solar activity is very limited due to its wide bandgap (approximate to 3.0-3.2 eV). This is a bottleneck for TiO2 to be applied in the areas ranging from visible-light photocatalysis and photovoltaics to photo-electrochemistry and sensors. Recently, the emergence of black TiO2 nanomaterial has triggered world-wide research interest, because of its substantially enhanced solar absorption and the improved photocatalytic activities. Here, a variety of synthetic strategies of black TiO2 are outlined, and the structural and chemical features, band structures and electronic properties of the black TiO2 nanomaterials are described in details, along with their photocatalytic performances as well as some other new applications.
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