Journal
SOLID STATE SCIENCES
Volume 11, Issue 6, Pages 1163-1169Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.solidstatesciences.2009.02.004
Keywords
Photocatalysis; PbBiO2Cl; Anatase TiO2; RuO2 loading; MO
Funding
- National 973 Program of China [2007CB936704]
- National Science Foundation of China [50772123]
- Science and Technology Commission of Shanghai [0752nm016, 08JC1420200]
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A novel visible-light-driven layered photocatalyst of Bi-based PbBiO2Cl is prepared by solid-state reaction. The optical band gap of PbBiO2Cl is determined to be 2.45 eV by UV-vis diffuse reflectance spectroscopy. Generally, the photocatalytic activity for degrading methyl orange (MO) over PbBiO2Cl is higher than that over anatase-type TiO2 under UV light and visible light illumination. The RuO2 loading over PbBiO2Cl leads to an obvious increase in photocatalytic performance. The internal electric fields between [PbBiO2] and [Cl] slabs are considered to be useful for the efficient separation of electron-hole pairs upon photoexcitation. (C) 2009 Elsevier Masson SAS. All rights reserved.
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