Wettability and photocatalysis of CF4 plasma etched titania films of honeycomb structure

Do Yeon Kim, Jung Jae Park, Jong Gun Lee, Maikel F.A.M. Van Hest, Sam S. Yoon

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We prepared titania films by aerosol deposition (AD), in which titania powder is supersonically accelerated for deposition onto a substrate. These AD titania films exhibited hydrophilicity and photocatalysis under UV exposure. However, after surface modification by CF4 plasma-etching, the films showed higher hydrophilicity and lower photocatalytic effect. After sufficient modification, they exhibited superhydrophilicity, which was induced by the presence of fluorine. This type of surface modification is useful for promoting hydrophilicity under no UV light exposure.

Original languageEnglish
Pages (from-to)9737-9742
Number of pages6
JournalCeramics International
Volume39
Issue number8
DOIs
Publication statusPublished - 2013 Dec

Keywords

  • Aerosol deposition
  • CF etching
  • D. TiO
  • Superhydrophilic
  • UV-light

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

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