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Origin of Low Photocatalytic Activity of Rutile TiO2
- Authors
- Jung, Hyun Suk; Kim, Hyungtak
- Issue Date
- Jun-2009
- Publisher
- KOREAN INST METALS MATERIALS
- Keywords
- Photocatalyst; Nanoparticle; Rutile; Anatase; Charge recombination
- Citation
- ELECTRONIC MATERIALS LETTERS, v.5, no.2, pp.73 - 76
- Journal Title
- ELECTRONIC MATERIALS LETTERS
- Volume
- 5
- Number
- 2
- Start Page
- 73
- End Page
- 76
- ISSN
- 1738-8090
- Abstract
- Rutile TiO2 nanoparticles were synthesized using the colloidal sol-gel process and their photocatalytic properties were characterized in comparison with anatase TiO2 nanoparticles. The synthesized rutile nanoparticles were found to possess higher surfaces area than the anatase nanoparticles and to exhibit lower photocatalytic activities, demonstrating that rutile TiO2 has intrinsically low photocatalytic properties. The photoluminescence (PL) study suggested that the inferior photocatalytic activity of rutile nanoparticles is correlated with the intrinsic recombination of photogenerated electron-hole pairs.
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Related Researcher
- Kim, Hyung tak
- Engineering (Electronic & Electrical Engineering)