Innovative paramagnetic one-dimensional (1-D) core-shell Fe-Ag@AgCl visible light-driven photocatalysts are synthesized through a template-assisted electrodeposition method trailed by FeCl3 in-situ oxidation. The metallic nature of Fe-Ag@AgCl is confirmed through scanning electron microscopy (SEM) and crystal nature through X-ray diffraction (XRD). The controllable diameter of Fe-Ag is obtained through the selection of hollow size of the polycarbonate (PC) template. Electron impedance spectroscopy (EIS) confirms through the introduction of Fe to the Ag core that has prolonged the recombination of electron and hole. Escherichia coli (E. coli) are employed as the target bacteria to evaluate the photocatalytic disinfection performances. A total of 1.30 mg of Fe-Ag@AgCl is proved to be able to completely inactivate 107 CFU (colony forming units)/mL after 120 min of visible light irradiation. The transition electron microscopy (TEM) confirms the stability of the material after the photo reaction. As Fe-Ag@AgCl possesses magnetic properties, the material is recovered through the application of an external magnetic field. SEM images and results of 3D emission extraction matrix (EEM) depict that the bacteria cell death is caused by membrane permeability changes caused by the reduction of membrane associated proteins.

中文翻译：

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可见光激活的一维核-壳顺磁性Fe-Ag @ AgCl是一种用于大肠杆菌光催化灭活的创新方法。

通过模板辅助电沉积法，FeCl3原位氧化技术合成了新颖的顺磁性一维（1-D）核壳型Fe-Ag @ AgCl可见光驱动光催化剂。Fe-Ag @ AgCl的金属性质通过扫描电子显微镜（SEM）确认，晶体性质通过X射线衍射（XRD）确认。Fe-Ag的可控制直径是通过选择聚碳酸酯（PC）模板的中空尺寸来获得的。电子阻抗谱（EIS）通过将Fe引入到Ag核中得到证实，这延长了电子与空穴的复合时间。大肠杆菌（E.coli）被用作靶细菌以评估光催化消毒性能。共1个 在120分钟的可见光照射后，已证明30 mg的Fe-Ag @ AgCl能够完全灭活107 CFU（菌落形成单位）/ mL。过渡电子显微镜（TEM）证实了光反应后材料的稳定性。由于Fe-Ag @ AgCl具有磁性，因此可通过施加外部磁场来回收材料。SEM图像和3D发射提取矩阵（EEM）的结果表明，细菌细胞死亡是由膜相关蛋白减少引起的膜通透性变化引起的。