Enhancement of photocatalytic activity of TiO2 by high-energy electron-beam treatment under atmospheric pressure

  • Myoung Joo Kim
  • , Kwang Dae Kim
  • , Wei Sheng Tai
  • , Hyun Ook Seo
  • , Yuan Luo
  • , Young Dok Kim
  • , Byung Cheol Lee
  • , Ok Kyung Park

Research output: Contribution to journalArticlepeer-review

Abstract

The influence of high-energy e-beam treatment at atmospheric pressure on the structure and photocatalytic activity of TiO2 was examined. Using an e-beam energy of 1 MeV and exposure in the range of 5-15 kGy, an improvement in the photocatalytic activity of TiO2 was observed. An increase in the population of C-O bonds was found in the C and O 1s states using X-ray Photoelectron Spectroscopy (XPS) suggesting that the change in the structure of the C impurities on the surface of TiO2 is closely related to the variation in the photocatalytic activity. Graphical Abstract: [Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)57-61
Number of pages5
JournalCatalysis Letters
Volume135
Issue number1-2
DOIs
StatePublished - Mar 2010

Keywords

  • High-energy e-beam
  • Photocatalysis
  • Surface treatment
  • TiO

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