Tuning of the photocatalytic 1,4-dioxane degradation with surface plasmon resonance of gold nanoparticles on titania

Byoung Koun Min, Jung Eun Heo, Na Kyoung Youn, Oh Shim Joo, Hyunjoo Lee, Jin Hyung Kim, Hoon Sik Kim

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

Gold nanoparticles supported on TiO2 promoted the 1,4-dioxane photocatalytic degradation. This beneficial effect of gold was found to originate from its surface plasmon resonance of which the magnitude is sensitive to both the density and the size of gold nanoparticles. Specifically, various Au-TiO2 powders, which have a different number density and size of gold nanoparticles, were prepared by a leaching procedure. The highest photocatalytic activity of Au-TiO2, which is almost two times higher than a commercial TiO2, was attained at the optimum state of the density and size of gold nanoparticles where the maximum surface plasmon absorption was also obtained.

Original languageEnglish
Pages (from-to)712-715
Number of pages4
JournalCatalysis Communications
Volume10
Issue number5
DOIs
Publication statusPublished - 2009 Jan 25

Keywords

  • 1,4-dioxane
  • Gold nanoparticles
  • Photocatalysis
  • Surface plasmon resonance
  • TiO

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Process Chemistry and Technology

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