Journal
CATALYSIS COMMUNICATIONS
Volume 36, Issue -, Pages 20-24Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2013.03.003
Keywords
La2CuO4; Photocatalysis; H-2 evolution; Cu2O
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Funding
- NSFC [21203029, 21003021, 21173044]
- Natural Science Foundation of Fujian Province of P. R. China [2010J05024]
- Science and Technology Project of Education Office of Fujian Province of P. R China [JA12036, JK2010002]
- National Basic Research Program of China (973 Program) [2012CB722607]
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A perovskite-like compound La2CuO4-based material, a well-known high-temperature superconductor, was studied as a photocatalyst H-2 was produced over La2CuO4 from aqueous solutions containing methanol as a sacrificial reagent under high-pressure Hg lamp irradiation. The photocatalytic activity of La2CuO4 is superior to that of the commercial anatase TiO2, and can be greatly improved by loading with Cu2O. Photoelectrochemical measurements revealed that the conduction band minimum of the La2CuO4 photocatalysts is thermodynamically feasible for the reduction reaction of water and Cu2O efficiently increase the electron-hole separation on La2CuO4 under photon irradiation to account for its higher photocatalytic activity. (C) 2013 Elsevier B.V. All rights reserved.
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