Abstract Herein, powder samples of Cd/Fe co-doped ZnO nanoparticles have been synthesized via sol-gel route. The impact of co-doping on physical properties of the samples is examined by various techniques. The XRD patterns show that the samples possess hexagonal wurtzite structure of the parent ZnO. In photoluminescence spectra, red and blue shifts observed for near-band-edge UV emission and green-band (GB) emission, respectively, confirming substitutional incorporation of Cd/Fe into the ZnO lattice. The Cd/Fe co-doped ZnO gives superior electrochemical activities because of high charge collection and facilitate the electrons at the interfaces of doped ZnO and the electrode layer. Mossbauer studies reveal that disorders enhance close to Fe3+ as Cd/Fe co-doping increases. C3F3 sample shows higher ΔD1 compared to the other samples, suggesting that more Fe3+ exist close to the defective sites. The disk diffusion method was used for antibacterial performance of two bacteria Pseudomonas aeruginosa (P. aeruginosa) and Bacillus flexus (B.flexus). C2F2 shows the highest antibacterial activates among all samples.

中文翻译：

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镉和铁修饰的氧化锌纳米粒子：对物理、电化学和抗菌性能的影响

摘要 本文通过溶胶-凝胶法合成了 Cd/Fe 共掺杂 ZnO 纳米颗粒的粉末样品。通过各种技术检查共掺杂对样品物理性质的影响。XRD图谱表明样品具有母体ZnO的六方纤锌矿结构。在光致发光光谱中，分别观察到近带边缘 UV 发射和绿带 (GB) 发射的红移和蓝移，证实了 Cd/Fe 置换结合到 ZnO 晶格中。Cd/Fe 共掺杂 ZnO 具有优异的电化学活性，因为它具有高电荷收集能力，并促进了掺杂 ZnO 和电极层界面处的电子。Mossbauer 研究表明，随着 Cd/Fe 共掺杂的增加，紊乱程度接近 Fe3+。与其他样品相比，C3F3 样品显示出更高的 ΔD1，表明在缺陷位点附近存在更多的 Fe3+。圆盘扩散法用于两种细菌铜绿假单胞菌（P. aeruginosa）和弯曲杆菌（B.flexus）的抗菌性能。C2F2 在所有样品中显示出最高的抗菌活性。