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The Influence of Reaction Temperature on the Formation and Photocatalytic Hydrogen Generation of (001) Faceted TiO2 Nanosheets.
- Source :
- ChemNanoMat; Aug2015, Vol. 1 Issue 4, p270-275, 6p
- Publication Year :
- 2015
-
Abstract
- Abstract: The rapid depletion of fossil fuel reserves has triggered an urgent need for developing clean energy solutions, for example, using sunlight to produce hydrogen with benign photocatalysts. The discovery of (001) faceted TiO<subscript>2</subscript> has inspired intensive studies of this model photocatalyst. Here, we found that the reaction temperature plays an important role in the formation and photocatalytic activity of TiO<subscript>2</subscript> nanosheets. Small anatase TiO<subscript>2</subscript> nanoparticles are formed at low temperatures, large anatase TiO<subscript>2</subscript> nanosheets appear along with some TiOF<subscript>2</subscript> crystals as the temperature increases, and pure (001) faceted TiO<subscript>2</subscript> nanosheets are formed at high temperatures. The photocatalytic activity of the TiO<subscript>2</subscript> nanoparticles/nanosheets in hydrogen generation increases when the temperature increases. The (001) facet of TiO<subscript>2</subscript> shows better photocatalytic activity over other facets, and the best performance in hydrogen generation is achieved with synergistic effects between TiO<subscript>2</subscript> nanosheets and TiOF<subscript>2</subscript> particles. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 2199692X
- Volume :
- 1
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- ChemNanoMat
- Publication Type :
- Academic Journal
- Accession number :
- 130024267
- Full Text :
- https://doi.org/10.1002/cnma.201500030