Enhanced visible-light photocatalytic degradation of humic acid by palladium-modified nitrogen-doped titanium oxide

Qi Li, Rongcai Xie, Eric A. Mintz, Jian Ku Shang

Research output: Contribution to journalArticlepeer-review

Abstract

Palladium-modified nitrogen-doped titanium oxide (TiON/PdO) nanoparticles were synthesized by a sol-gel process, for visible-light-induced photocatalysis using humic acid (HA) as a target. Our work shows that palladium modification has strong effects on the optical and photocatalytic properties of nitrogen-doped titanium oxide (TiON) photocatalysts. TiON/PdO nanoparticles demonstrated an enhanced photocatalytic activity over TiON within a narrow range of palladium concentration. Beyond this range, the adverse effect of palladium modification was observed in the visible-light-induced degradation of HA. The effects of palladium modification are discussed in terms of its role in controlling electron-hole recombination.

Original languageEnglish (US)
Pages (from-to)3863-3868
Number of pages6
JournalJournal of the American Ceramic Society
Volume90
Issue number12
DOIs
StatePublished - Dec 1 2007

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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