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Micro-patterned TiO2 films for photocatalysis

Liu, J., Liu, H., Zuo, X., Wen, F., Jiang, H., Cao, H. & Pei, Y., 1-Nov-2019, In : Materials Letters. 254, p. 448-451 4 p.

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  • Micro-patterned TiO2 films for photocatalysis

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DOI

  • Jiaqi Liu
  • Hongwu Liu
  • Xiaodan Zuo
  • Feng Wen
  • Hong Jiang
  • Huatang Cao
  • Yutao Pei

Titanium dioxide film as a stable material plays an important role in photocatalytic degradation of pollutants. One of the ways to improve photocatalytic efficiency is to increase the active sites on the semiconductor surface. Photolithography is a manufacturing technique for controlling precisely micrographics on surface. Here grating-structured, square-structured and hexagon-structured TiO2 films were prepared by photolithography and the effects of various surface structures on photocatalysis were studied. It was demonstrated that the photocatalytic activity of TiO2 film was not always improved as the surface area increased. The micro-patterned surface would also impede the mass transfer in the process of photocatalysis. (C) 2019 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)448-451
Number of pages4
JournalMaterials Letters
Volume254
Early online date25-Jul-2019
Publication statusPublished - 1-Nov-2019

    Keywords

  • Titanium dioxide film, Structural, Photocatalysis, Mass transfer, Photolithography, Physical vapour deposition, REMEDIATION

ID: 101556478