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Superior photocatalytic performance by vertically aligned core–shell TiO2/WO3 nanorod arrays
- Source :
-
Catalysis Communications . Mar2009, Vol. 10 Issue 7, p1117-1121. 5p. - Publication Year :
- 2009
-
Abstract
- Abstract: Using two consecutive regarding glancing angle depositions at different deposition angles and with different materials, a WO3-core TiO2-shell nanostructure has been fabricated and has photocatalytic enhancement up to 70 times over amorphous single layer TiO2 thin films, 13 times enhancement over crystalline (anatase) TiO2 thin films, and 3 times enhancement over c-TiO2/a-WO3 two-layer thin films, with much less the load of TiO2. We believe that the mechanism for the photocatalytic enhancement is from the increased density of charge separated electron-hole pairs aided by the WO3 layer, the interfacial area between the two-layers, and the large surface area from the porous nanostructure. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 15667367
- Volume :
- 10
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Catalysis Communications
- Publication Type :
- Academic Journal
- Accession number :
- 36770941
- Full Text :
- https://doi.org/10.1016/j.catcom.2009.01.010