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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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Mg-doped WO3 as a novel photocatalyst for visible light-induced water splitting

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Title
Mg-doped WO3 as a novel photocatalyst for visible light-induced water splitting
Other Titles
Mg-doped WO3 as a novel photocatalyst for visible light-induced water splitting
Author
Hwang, Dong WonKim, JindoPark, Tae JinLee, Jae Sung
Keywords
Mg-doped WO3; photocatalyst; visible light; water splitting; band position shift
Issue Date
2002-05
Publisher
SPRINGER
Citation
CATALYSIS LETTERS, v.80, no.1-2, pp.53 - 57
Abstract
Mg-doped WO3 with band gap energy of about 2.6 eV is a viable photocatalyst for visible light-induced water splitting in the presence of hole scavengers. The conduction band edge position of p-type Mg-doped WO3 was -2.7 V versus SCE at pH 12. By doping Mg on WO3 the conduction and valence band positions were shifted by 2.25 V negatively, leading to a conduction band edge position which was negative enough for H+ ions to be reduced thermodynamically, with little change in band gap energy. The negative shift in band position might be ascribed to lowering of the effective electron affinity of WO3 by doping Mg with a very low electron affinity
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DOI
10.1023/A:1015322625989
ISSN
1011-372X
Appears in Collections:
ECHE_Journal Papers
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