Photocatalytic sterilization of TiO2 films coated on Al fiber

Li Luo, Lei Miao, Sakae Tanemura, Masaki Tanemura

研究成果: Article査読

19 被引用数 (Scopus)

抄録

Photocatalytic TiO2 films were coated on Al fiber by sol-gel dip-coating method, and then annealed. The crystal structure and morphology of the films were performed by XRD, TEM and SEM. Photocatalytic sterilization of the films was investigated in O2 atmosphere through purifying the aqueous solution with facultative aerobe (Bacillus cereus), aerobe (Pseudomonas aeruginosa) and anaerobe (Staphylococcus aureus, Enterococcus faecalis and Escherichia coli). In the presence of O2, it benefits to generate O2{radical dot}- and {radical dot}OH at the first stage of the photocatalytic reaction, while the excess O2 restrains the anaerobe from reproducing and accelerates the reproducing for the aerobe at the second stage of reaction. As a result, it was found that the crystal of TiO2 films is anatase phase and the films have excellent sterilization effect against facultative aerobe and anaerobe. Nevertheless, it only decreased the bioactivity against aerobe in a short time.

本文言語English
ページ(範囲)183-186
ページ数4
ジャーナルMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
148
1-3
DOI
出版ステータスPublished - 2008 2 25
外部発表はい

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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