In this study, for the first time, we report the design of titanium carbide (Ti₃C₂) – based nanocomposites to realize a highly efficient antibacterial effect. Stable reduced silver @ titanium carbide @ cuprous oxide ([email protected]₃C₂@Cu₂O) nanocomposites with efficient antibacterial activities were synthesized via a simple wet chemical method at room temperature and developed as highly efficient photocatalytic bactericides for antifouling. The [email protected]₃C₂@Cu₂O nanocomposites showed excellent antibacterial activities against Pseudomonas aeruginosa and Staphylococcus aureus. The electron-hole recombination efficiency of the nanocomposites was analyzed by characterizing the photoluminescence spectra, which indicated that the charge transfer channel imparted by the heterostructure between the nanocomposites considerably improved charge transport and separation efficiency, prolonged the life of active electrons, and promoted the generation of reactive oxygen species. Furthermore, density functional theory calculations and finite element method calculations indicated that the structure of nanocomposites reduces the difficulty of photoelectron escaping during photocatalysis and improves photocatalytic efficiency.

在这项研究中，我们首次报告了碳化钛（Ti ₃ C ₂）基纳米复合材料的设计，以实现高效的抗菌效果。通过简单的湿化学方法，在室温下合成了具有有效抗菌活性的稳定的还原性银@碳化钛@氧化亚铜（[电子邮件保护] ₃ C ₂ @Cu ₂ O）纳米复合材料，并将其开发为高效的光催化杀菌剂。[电子邮件保护的] ₃ C ₂ @Cu ₂ O纳米复合材料对铜绿假单胞菌和金黄色葡萄球菌具有优异的抗菌活性。。通过表征光致发光光谱分析了纳米复合材料的电子-空穴复合效率，这表明纳米复合材料之间的异质结构赋予的电荷转移通道大大提高了电荷的传输和分离效率，延长了活性电子的寿命，并促进了电子的产生。活性氧种类 此外，密度泛函理论计算和有限元方法计算表明，纳米复合材料的结构降低了光催化过程中电子逃逸的难度，提高了光催化效率。