Copper nanoclusters (CuNCs), as novel energy level tunable photocatalysts, have been utilized to combine with various conventional inorganic catalysts to improve catalytic performance. However, conventional photocatalysts generally have fixed energy levels, which are not conducive to bi-directional adjustment of the composite catalyst energy level structure. In this work, CuNCs protected by 3-mercaptopropionic acid (CuNCs@3-MPA) and energy-level controllable carbon dots (CDs) are combined to prepare intelligent photocatalytic materials through electrostatic self-assembly strategy, i.e., CuNCs@3-MPA/CDs. The self-assembled CuNCs@3-MPA have a large specific surface area, and the Z-type heterostructure can be constructed by introducing energy-matched CDs, which can achieve the effective separation of photogenerated electron-hole pairs and directional generation of ·O₂^- at the same time, enabling the degradation of 98.5 % Methyl Orange (MO, 20 mg/L) in 7 min. The catalytic rate constant is increased to 0.501 min^-1, which is equivalent to 3.6 times that of CuNCs@3-MPA alone. Since CuNCs@3-MPA/CDs with rich Cu(I) can perform Fenton-like reaction to catalyze the production of ·OH from H₂O₂, we use TMB and H₂O₂ as substrates to probe its peroxidase-like activity. The K_m is 0.18 mM when the substrate is TMB, which is lower than that of horseradish peroxidase (HRP) (K_m=0.434 mM), indicating that the affinity between CuNCs@3-MPA/CDs and TMB is higher than that of HRP, which has a high peroxidase-like activity.

铜纳米团簇 (CuNCs) 作为新型能级可调光催化剂，已被用于与各种常规无机催化剂结合以提高催化性能。然而，传统的光催化剂一般具有固定的能级，不利于复合催化剂能级结构的双向调节。本工作将3-巯基丙酸保护的CuNCs(CuNCs@3-MPA)与能级可控碳点(CDs)结合，通过静电自组装策略制备智能光催化材料，即CuNCs@3-MPA/ CD。自组装的CuNCs@3-MPA具有较大的比表面积，可以通过引入能量匹配的CDs构建Z型异质结构，₂ ^-同时，能够在 7 分钟内降解 98.5% 的甲基橙（MO，20 mg/L）。催化速率常数提高到0.501 min ^-1，相当于单独使用CuNCs@3-MPA的3.6倍。_{由于富含Cu(I)的CuNCs@3-MPA/CDs可以进行类芬顿反应催化H 2} O ₂生成·OH，我们以TMB和H ₂ O ₂为底物探究其类过氧化物酶活性. 当底物为TMB时， K _m为0.18 mM，低于辣根过氧化物酶（HRP）（K _m=0.434 mM），表明CuNCs@3-MPA/CDs与TMB的亲和力高于HRP，后者具有较高的类过氧化物酶活性。