张妍, 车俊岭, 贾艳敏. 铁电材料催化抗菌研究进展[J]. 工程科学学报. DOI: 10.13374/j.issn2095-9389.2023.11.07.001
引用本文: 张妍, 车俊岭, 贾艳敏. 铁电材料催化抗菌研究进展[J]. 工程科学学报. DOI: 10.13374/j.issn2095-9389.2023.11.07.001
* 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

铁电材料催化抗菌研究进展

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

  • 摘要: 研究和发展抗菌技术对保障人类的生命健康至关重要。铁电材料是具有自发极化,且自发极化能够为外电场所转向的一类材料。在外加场的刺激下,铁电材料内部的电偶极子的有序排列被打破,表面的束缚电荷重新分布,被释放的正负电荷与周围介质中的氧气和水发生反应,生成具有强氧化性的活性物质(如·OH,·O2-)来灭活细菌。因此,铁电材料具备良好的压电、热释电及光伏性质,且具有响应快(10-6 s)、机电耦合系数高等独特优势,其与催化技术相结合已被发展成为一种新兴的灭菌技术。本综述从铁电材料的压电催化抗菌、热释电催化抗菌及光催化抗菌三个方面,对前人报道的关于铁电材料催化抗菌的工作进行了总结梳理,并分别阐述了铁电材料在不同类型催化过程中的抗菌机制。

     

    Abstract: 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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