* 通信作者,E-mail: junling.che@163.com ymjia@zjnu.edu.cn[J]. Chinese Journal of Engineering. DOI: 10.13374/j.issn2095-9389.2023.11.07.001
Citation: * 通信作者,E-mail: junling.che@163.com ymjia@zjnu.edu.cn[J]. Chinese Journal of Engineering. DOI: 10.13374/j.issn2095-9389.2023.11.07.001

* 通信作者,E-mail: junling.che@163.com ymjia@zjnu.edu.cn

  • Research and development of antimicrobial technology are critical to protecting human life and health. The ferroelectric material is a material with spontaneous polarization, and its direction of spontaneous polarization is able to turn for the external electric field. Under the stimulus of the applied field, the ordered arrangement of electric dipoles inside the ferroelectric material is disrupted, the bound charges on the surface redistribute, and the released positive and negative charges react with the oxygen and water in the surrounding medium to form active substances with powerful oxidant properties (such as ·OH,·O2-). These highly oxidizing active substances will destroy the cell wall of bacterial cells, enter the cell to damage the DNA, leak proteins, and make them inactive, so as to achieve the purpose of inactivating the bacteria. Thus, ferroelectric materials have excellent piezoelectric, pyroelectric, and photovoltaic properties, and have the ability to convert mechanical, thermal, and light energy in nature into electrical and chemical energy. In addition, ferroelectric materials also have unique advantages, such as fast response (10-6 s), high electromechanical coupling coefficient, and so on, and their combination with catalysis is becoming a new sterilization technique. However, high antimicrobial efficiencies are closely related to the carrier utilization in the catalytic process and the activity of the catalyst, no matter whether mechanical, thermal, or optical energy is used as the driving source to stimulate ferroelectric materials for catalytic antimicrobials. When ferroelectric materials are used as catalysts, spontaneous polarization properties of ferroelectric materials can be used to reduce electron-hole pair combination rate through the internal electric field, increasing the yield of active substances and further improving the efficiency of catalytic antibacterial. In addition, high-performance ferroelectric materials have a high internal electric field potential after polarization treatment, which can accelerate the carrier separation in the catalytic process. As a result, ferroelectric materials have a great potential for catalytic antimicrobial applications under environmentally friendly and safe conditions. In this review, based on the introduction of the ferroelectric properties of ferroelectric materials and their relationship with piezoelectric and pyroelectric materials, we summarize and sort out the previous work reported on the catalytic antimicrobial properties of ferroelectric materials in terms of photocatalytic antimicrobial, piezocatalytic antimicrobial and pyrocatalytic antimicrobial properties of ferroelectric materials, and describe the antimicrobial mechanisms of ferroelectric materials in different types of catalytic processes, respectively, to provide a reference for the future generations to research the catalytic antimicrobial properties of ferroelectric materials.
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