The Influence of Tin(II) Incorporation on Visible Light Absorption and Photocatalytic Activity in Defect‐Pyrochlores

The defect pyrochlore KTaWO6 has been used to systematically investigate the effect of SnII incorporation conditions on the band structure and subsequent photocatalytic properties. Different tin precursors show varying influence on the resulting band gap. While the optimum conditions diminish the ba...

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Bibliographic Details
Published inChemistry : a European journal Vol. 24; no. 69; pp. 18535 - 18543
Main Authors Weiss, Morten, Bredow, Thomas, Marschall, Roland
Format Journal Article
LanguageEnglish
Published Germany Wiley Subscription Services, Inc 10.12.2018
Subjects
Absorption
Catalytic activity
Chemistry
Electromagnetic absorption
Energy gap
hydrogen generation
light absorption
Photocatalysis
Pyrochlores
Tin
tin incorporation
tin incorporation
photocatalysis
hydrogen generation
light absorption
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Summary:The defect pyrochlore KTaWO6 has been used to systematically investigate the effect of SnII incorporation conditions on the band structure and subsequent photocatalytic properties. Different tin precursors show varying influence on the resulting band gap. While the optimum conditions diminish the band gap by up to 1.4 eV, the increase in visible light absorption does not correlate with an increase of photocatalytic activity. KTaWO6 with defect‐pyrochlore structure has been used to investigate the influence of tin exchange conditions on band gap reduction, by up to 1.4 eV, and the effect on photocatalytic hydrogen production.
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content type line 23
ISSN:0947-6539
1521-3765
DOI:10.1002/chem.201803276