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Simple preparation of TiO2 particles dispersed activated carbons and their photo-sterilization activity

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Abstract

We report a simple preparation method for TiO2 particles dispersed activated carbons and their photo-sterilization activity for E. coli and B. subtilis. The TiO2 particles dispersed activated carbons were readily prepared by steam activation of pitch containing titanium isopropoxide Ti(OiPr)4 or titanium acetylacetonate TiO(acac)3. The resulting activated carbons have high BET surface area and fine TiO2 particles are uniformly dispersed. The photo-sterilization activities for E. coli and B. subtilis were estimated by the sterilization activity for bacteria spores by irradiation of black light to the solutions containing activated carbons. The obtained activated carbons exhibited high photo-sterilization activity for E. coli and B. subtilis with short irradiation time of 15 min.

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Authors and Affiliations

  1. Departments of Applied Chemistry, Faculty of Engineering, Hiroshima University, Higashi-hiroshima, 739-8527, Japan

    Hisashi Tamai, Nobuyoshi Katsu & Hajime Yasuda

  2. Departments of Fermentation Technology, Faculty of Engineering, Hiroshima University, Higashi-hiroshima, 739-8527, Japan

    Kazuhisa Ono

Authors
  1. Hisashi Tamai
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  2. Nobuyoshi Katsu
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  3. Kazuhisa Ono
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  4. Hajime Yasuda
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Tamai, H., Katsu, N., Ono, K. et al. Simple preparation of TiO2 particles dispersed activated carbons and their photo-sterilization activity. Journal of Materials Science 37, 3175–3180 (2002). https://doi.org/10.1023/A:1016110412094

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