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Lee, Jae Sung
Eco-friendly Catalysis and Energy Lab
Research Interests
  • Photocatalytic water splitting, artificial photosynthesis, fuel cells, heterogeneous catalysis

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Structure of PbBi2Nb2O9 and its Cr-doped layered perovskite system and their photocatalytic activities

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Title
Structure of PbBi2Nb2O9 and its Cr-doped layered perovskite system and their photocatalytic activities
Other Titles
Structure of PbBi2Nb2O9 and its Cr-doped layered perovskite system and their photocatalytic activities
Author
Hong, S. J.Borse, P. H.Ji, S. M.Jang, J. S.Lee, Jae SungJeong, E. D.Kim, H. G.
Keywords
aurivillius-phase perovskite; photocatalysts; visible light; quantum yield; band-gap
Issue Date
2007-07
Publisher
KOREAN PHYSICAL SOC
Citation
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.51, no., pp.S27 - S31
Abstract
In the search for efficient photocatalysts for water splitting under visible light, the effect of chromium doping in a (100) layered Aurivillius-phase perovskite material, PbBi2Nb2O9, has been studied. The Cr-doped PbBi2Nb2O9 showed three absorption edges: the main edge due to the oxide at 431 nm and shoulders due to the chromium ions at 470 nm and 600 nm, respectively. The Pt/Gr-doped PbBi2Nb2O9 photocatalyst was more active than the undoped PbBi2Nb2O9 for photocatalytic decomposition of water-methanol solution. This is attributed to Cr+ ions having an important role in increasing QYs in the PbBi2Nb2O9
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DOI
10.3938/jkps.51.27
ISSN
0374-4884
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