Developing high photocatalytic antibacterial Zn electrodeposited coatings through Schottky junction with Fe3+-doped alkalized g-C3N4 photocatalysts

IF 9.9 2区材料科学 Q1 Engineering Nano Materials Science Pub Date : 2023-06-01 DOI:10.1016/j.nanoms.2022.01.004

Ying Gao , Xiaofan Zhai , Yuxin Zhang , Fang Guan , Nazhen Liu , Xiutong Wang , Jie Zhang , Baorong Hou , Jizhou Duan

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引用次数: 5

Abstract

Pure Zn coatings easily lose their protective performance after biofouling because they have no antibacterial effect under visible light. In this study, we fabricate a new antibacterial Zn composite coating using electrodeposition to couple Fe³⁺-doped alkalized g-C₃N₄ (AKCN-Fe) into an existing Zn coating and show that the AKCN-Fe enhances antibacterial property of the Zn coating under visible light. We attribute this enhancement to the high photocatalytic performance, high loading content, and good dispersion of AKCN-Fe. In addition, the photocatalytic antibacterial mechanism of the composite coating is supported by scavenger experiments and electron paramagnetic resonance (EPR) measurements, suggesting that superoxide ( $\cdot O_{2}^{-}$ ) and hydroxyl radical (·OH) play main and secondary roles, respectively.

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Fe3+掺杂碱化g-C3N4光催化剂肖特基结制备高光催化抗菌锌电镀层

纯锌涂层在可见光下没有抗菌作用，在生物污垢后很容易失去保护性能。在本研究中，我们使用电沉积方法将Fe3+掺杂的碱化g-C3N4（AKCN-Fe）偶联到现有的锌涂层中，制备了一种新的抗菌锌复合涂层，并表明AKCN-Fi增强了锌涂层在可见光下的抗菌性能。我们将这种增强归因于AKCN-Fe的高光催化性能、高负载量和良好的分散性。此外，清除剂实验和电子顺磁共振（EPR）测量支持了复合涂层的光催化抗菌机制，表明超氧化物（·O2−）和羟基自由基（·OH）分别起主要和次要作用。

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来源期刊

Nano Materials Science Engineering-Mechanics of Materials

CiteScore

20.90

自引率

3.00%

发文量

294

审稿时长

9 weeks

期刊介绍： Nano Materials Science (NMS) is an international and interdisciplinary, open access, scholarly journal. NMS publishes peer-reviewed original articles and reviews on nanoscale material science and nanometer devices, with topics encompassing preparation and processing; high-throughput characterization; material performance evaluation and application of material characteristics such as the microstructure and properties of one-dimensional, two-dimensional, and three-dimensional nanostructured and nanofunctional materials; design, preparation, and processing techniques; and performance evaluation technology and nanometer device applications.