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    • Keywords


      Rod-like nanostructure; aligned nanoparticle aggregates; photocatalytic activity; antibacterial activity; dye-sensitized solar cell.

    • Abstract


      To improve the performance of titanium dioxide (TiO2)-based devices, many efforts have been made to prepare nanostructures with composite of TiO2 nanoparticles and nanorods. In this work, a novel rod-like TiO2 nanostructure was obtained via a controllable hydrolysis process. Morphology and structure analysis showed that the rod-like nanostructure was a well-aligned aggregate of nearly spherical TiO2 nanoparticles. Rod-like TiO2 nanoparticle aggregates were fabricated on a primary TiO2 nanoparticle-based layer without the use of template, and formed a hierarchical TiO2 composite film together. The photocatalytic activity of the TiO2 film with rod-like nanoparticle aggregates was evaluated by the degradation of methylene blue. The antibacterial activity of fabricated hierarchical TiO2 film was assessed against Staphylococcus aureus. The photoelectrochemical property of this film as the photoanode in assemble dye-sensitized solar cell was also tested. Compared with randomly distributed nanoparticle-based TiO2 film, the hierarchical TiO2 film exhibited improved performance of photocatalysis, antibacterial activity and photoelectric conversion.

    • Author Affiliations


      Weijuan Zhang1 2 3 Wenkai Chang2 4 3 Baozhen Cheng1 Zenghe Li5 Junhui Ji4 Yang Zhao2 5 Jun Nie5

      1. College of Materials Science and Engineering, Tianjin University of Science & Technology, Tianjin 300222, PR China
      2. China Leather and Footwear Industry Research Institute, Beijing 100015, PR China
      3. These authors contributed equally to this work.
      4. Antimicrobial Materials Testing Center, Technical Institute of Physics and Chemistry, Chinese Academy of Science, Beijing 100101, PR China
      5. College of Science, Beijing University of Chemical Technology, Beijing 100029, PR China
    • Dates

  • Bulletin of Materials Science | News

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      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

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