Effect of applying voltage on photocatalytic destruction of 1,4-dioxane in aqueous system

Sayaka Yanagida, Akira Nakajima, Yoshikazu Kameshima, Kiyoshi Okada

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

In the current work, we prepared a TiO2 coating on stainless mesh using electrophoretic deposition (EPD), and applied voltage to a stainless mesh to examine the synergy effect on photocatalysis of both 1,4-dioxane and ethylene glycol diformate (EGDF), a main intermediate of the photocatalysis of 1,4-dioxane. The photocatalytic decomposition rate of 1,4-dioxane depends on applying voltage under diffusion-limited reaction conditions. Ethylene glycol diformate and 1,4-dioxane exhibited inverse voltage dependence. Voltage swing provides high-efficiency photocatalysis of 1,4-dioxane while suppressing EGDF formation. This method will be effective for a photocatalysis system containing several chemicals, each with different voltage dependence.

Original languageEnglish
Pages (from-to)1042-1046
Number of pages5
JournalCatalysis Communications
Volume7
Issue number12
DOIs
Publication statusPublished - Dec 1 2006
Externally publishedYes

Keywords

  • 1,4-Dioxane
  • Electrophoretic deposition
  • Photocatalyst
  • TiO
  • Voltage

ASJC Scopus subject areas

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

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