The construction of ternary nanocomposites has shown promising prospects in photoelectrochemical (PEC) glucose sensing. In this work, cubic CuO-Cu-ZnO (CCZ) ternary nanocomposite was synthesized through a straightforward method. The CCZ/Nafion/GCE (glassy carbon electrode) electrode possessed excellent photo-response and was used for PEC glucose sensing. As the light intensity increased, the CCZ/Nafion/GCE electrode exhibited higher sensitivity (1.213 mA mM cm), wider linear range (0–5 mM), shorter response time (3 s) and lower detection limit (2.10 μM). The anti-interference and stability tests proved the high stability of the CCZ-based glucose sensor. Further results confirmed that the glucose concentration detected by the CCZ-based glucose sensor was close to the results detected by a commercial sensor, indicating the application prospect of the CCZ-based PEC glucose sensor. This work provided a novel perspective for the development of ternary semiconductor-metal structure in PEC glucose sensing.

中文翻译：

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用于高性能光电化学非酶葡萄糖传感器的Cu2O-Cu-ZnO三元纳米复合材料的研制

三元纳米复合材料的构建在光电化学（PEC）葡萄糖传感中显示出广阔的前景。在这项工作中，通过简单的方法合成了立方 CuO-Cu-ZnO (CCZ) 三元纳米复合材料。CCZ/Nafion/GCE（玻碳电极）电极具有优异的光响应性，可用于 PEC 葡萄糖传感。随着光强度的增加，CCZ/Nafion/GCE电极表现出更高的灵敏度（1.213 mA mM cm）、更宽的线性范围（0-5 mM）、更短的响应时间（3 s）和更低的检测限（2.10 μM）。抗干扰性和稳定性测试证明了基于CCZ的葡萄糖传感器的高稳定性。进一步的结果证实，基于CCZ的葡萄糖传感器检测到的葡萄糖浓度与商业传感器检测到的结果接近，表明了基于CCZ的PEC葡萄糖传感器的应用前景。这项工作为PEC葡萄糖传感中三元半导体-金属结构的发展提供了新的视角。