Metallic Cu is considered as the promising functional material owing to its high conductivity and harmlessness. Here, metallic Cu which presents a unique interconnected and continuous structure (Cu superstructure) is prepared using Magnolia grandiflora leaves as the biomass reductant, a green process which avoided the release of harmful gases and massive energy consumption. What's more, Cu/CuO, Cu/Cu₂O, and CuS nanosheets with different sizes were fabricated using Cu superstructure as the substrate via facile methods, and the morphology is regulated by controlling the relevant factors. The electrochemical sensors based on the three derivations were fabricated to study the sensing performance of glucose. The unique structure of nanosheets encapsulating Cu superstructure guarantees the excellent conductivity of Cu/CuO and Cu/Cu₂O composites. Moreover, the electrochemical stability is improved owing to the nanosheet protective layer. Although no metallic Cu was maintained in CuS, the integrated multilayer nanosheets endow CuS with short channels for fast interlayer electronic transmission and with structural stability.

金属铜由于其高导电性和无害性而被认为是一种很有前途的功能材料。在这里，使用广玉兰叶作为生物质还原剂制备了具有独特互连和连续结构（Cu 超结构）的金属铜，这是一种绿色工艺，避免了有害气体的释放和大量的能源消耗。此外，Cu/CuO、Cu/Cu ₂以Cu超结构为基材，通过简便的方法制备了不同尺寸的O和CuS纳米片，并通过控制相关因素来调节其形貌。制作了基于三种推导的电化学传感器来研究葡萄糖的传感性能。包裹Cu超结构的纳米片的独特结构保证了Cu/CuO和Cu/Cu ₂ O复合材料的优异导电性。此外，由于纳米片保护层，电化学稳定性得到改善。尽管 CuS 中没有金属 Cu，但集成的多层纳米片赋予 CuS 短通道，用于快速层间电子传输和结构稳定性。