Iron(III)-oxo centers on TiO2 for visible-light photocatalysis

Joseph A. Libera, Jeffrey W. Elam, Norman F. Sather, Tijana Rajh, Nada M. Dimitrijevic

Research output: Contribution to journalArticlepeer-review

64 Scopus citations

Abstract

Isolated iron(III)-oxo clusters were synthesized onto TiO2 using atomic layer deposition. The FexOy/TiO2 nanocomposites have unique properties that enable not only absorption of visible light, but efficient photocatalysis as demonstrated by methylene blue degradation. The localization of photogenerated electrons in core TiO 2 nanocrystallites upon visible light excitation demonstrates coupling of conduction bands of mixed oxides. The redox properties of photogenerated charges in nanocomposites were studied using in situ electron paramagnetic resonance spectroscopy.

Original languageEnglish (US)
Pages (from-to)409-413
Number of pages5
JournalChemistry of Materials
Volume22
Issue number2
DOIs
StatePublished - Jan 26 2010
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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