Enhanced visible-light photocatalytic disinfection of bacterial spores by palladium-modified nitrogen-doped titanium oxide

Pinggui Wu, Rongcai Xie, Jian Ku Shang

Research output: Contribution to journalArticlepeer-review

Abstract

Palladium-modified nitrogen-doped titanium oxide (TiON/PdO) nanofibers were synthesized by a sol-gel process on activated carbon-coated glass fiber (ACGF) template. The TiON/PdO fiber was tested for visible-light-activated photocatalysis using Bacillus subtilis endospore as a target. Our work shows that TiON/PdO nanofibers display an effective antimicrobial effect on Bacillus spores. The palladium modification provides a strong enhancement over TiON in the photocatalytic disinfection. Microscopic characterization demonstrated that visible-light photocatalysis on TiON/PdO fiber caused drastic damage on the spore coat and internal structure.

Original languageEnglish (US)
Pages (from-to)2957-2962
Number of pages6
JournalJournal of the American Ceramic Society
Volume91
Issue number9
DOIs
StatePublished - Sep 2008

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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