Sonophotocatalytic destruction of 1,4-dioxane in aqueous systems by HF-treated TiO2 powder

Akira Nakajima, Megumi Tanaka, Yoshikazu Kameshima, Kiyoshi Okada

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)


Decomposition efficiency of 1,4-dioxane in water was examined by sonophotocatalytic method through comparison of TiO2 and HF-treated TiO2. 1,4-Dioxane is effectively decomposed by combining sonolysis and photocatalysis. This synergistic effect is attributable to effective enhancement of photocatalysis by sonolysis. HF treatment of TiO2 surface enhances its absorption capabilities for both 1,4-dioxane and ethylene glycol diformate (EGDF), while improving the overall decomposition rate of 1,4-dioxane by sonophotocatalytic treatment.

Original languageEnglish
Pages (from-to)75-79
Number of pages5
JournalJournal of Photochemistry and Photobiology A: Chemistry
Issue number2-3
Publication statusPublished - Oct 1 2004
Externally publishedYes


  • 1,4-Dioxane
  • HF
  • Photocatalysis
  • Sonolysis
  • TiO

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Physics and Astronomy(all)


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