Chinese Journal of Applied Chemistry ›› 2022, Vol. 39 ›› Issue (4): 629-646.DOI: 10.19894/j.issn.1000-0518.210483

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Research Progress on Photocatalytic Antibacterial Application of TiO2 Nano Materials

Jia-He WANG1, Da-Yong LIU1, Wei LIU1, Lin WANG2(), Biao DONG1()   

  1. 1.College of Electronic Science and Engineering,Jilin University,State Key Laboratory of Integrated Optoelectronics,Changchun 130012,China
    2.Hospital of Stomatology,Jilin University,Dental Implantation,Changchun 130021,China
  • Received:2021-09-28 Accepted:2022-02-21 Published:2022-04-01 Online:2022-04-19
  • Contact: Lin WANG,Biao DONG
  • Supported by:
    the National Natural Science Foundation of China(61775080);the Major Basic Research Projects of Shandong Natural Science Foundation(ZR2020ZD36)


Photocatalytic nano-TiO2 is favored for its excellent photocatalysis, chemical stability and broad-spectrum antibacterial properties. However, some problems, such as wide gap, high overpotential and fast recombination of photocarriers, limit its photocatalytic performance. This paper reviews the recent progress of TiO2 photocatalysis in antibacterial research. The mechanism of photocatalytic antibacterial activity of nano-TiO2 is discussed, and several strategies to improve the photocatalytic antibacterial activity of nano-TiO2 are discussed, including the structural design of nano-TiO2, the regulation of light, the doping of metal ions, the doping of non-metal ions, the modification of precious metals and the coupling of other materials. The modified TiO2 photocatalyst inhibits the growth of bacterial cells significantly, which has a unique application prospect in biomedical engineering.

Key words: Antibacterial, TiO2, Photocatalysis

CLC Number: