Cu-based copper nanoclusters have generated a great deal of interest based on for their fluorescent and catalytic properties. However, as heterogeneous catalysts, little attention has been given to the degradation of organic pollutants in Fenton-like reaction systems. Here, flower-like copper nanoclusters/flower carbon heterostructured microspheres were prepared by a one-pot mixing template-based method. With Cu-based copper nanoclusters/carbon (CuNCs/C) composite as a Fenton-like catalyst, a CuNCs/C-H₂O₂ system was used to degrade Amido Black 10B (AB-10B). The effects of different factors on the degradation rate of AB-10B were studied. A 98.6% degradation ratio of AB-10B was reached for the CuNCs/C -H₂O₂ based Fenton-like reaction within 180 min under optimal experimental conditions. The CuNCs/C concentration was 0.06 g/L, the dosage of H₂O₂ was 25 mmol/L, the mass ratio of CuNCs and the carbon was 1:2, pH = 6.0, and the reaction temperature was 40.0 °C. The removal rate of AB-10B on CuNCs/C decreased by less than 10% even after 6 catalytic cycles, which showed a remarkable reusability characteristic and high catalytic activity. Cu⁰ and Cu⁺ were found to co-exist in the catalysts and presented a high degradation effective for intermediates that were identified by liquid chromatography-mass spectrometry (LC-MS). These results indicated that the catalysts can be used as highly efficient Fenton-like catalyst for the degradation of toxic organic pollutants in wastewater.

Graphical Abstract

中文翻译：

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铜纳米团簇/红地球花碳作为芬顿类催化剂，可降解酰胺基黑10B

基于铜的铜纳米簇因其荧光和催化特性而引起了极大的兴趣。然而，作为非均相催化剂，很少有人关注芬顿样反应体系中有机污染物的降解。在这里，通过基于一锅混合模板的方法制备了花状铜纳米团簇/花碳异质结构微球。以铜基团簇/碳（CuNCs / C）复合材料作为Fenton状催化剂，使用CuNCs / CH ₂ O ₂体系降解酰胺基黑10B（AB-10B）。研究了不同因素对AB-10B降解速率的影响。对于CuNCs / C -H ₂ O ₂，AB-10B的降解率为98.6％。在最佳实验条件下，在180分钟内完成Fenton样反应。CuNCs / C浓度为0.06g / L，H ₂ O ₂的剂量为25mmol / L，CuNCs与碳的质量比为1：2，pH ＝ 6.0，反应温度为40.0℃。即使经过6个催化循环，AB-10B在CuNCs / C上的去除率仍降低了不到10％，这显示出了显着的可重用性和高催化活性。Cu ⁰和Cu ⁺被发现在催化剂中共存，并且对通过液相色谱-质谱（LC-MS）鉴定的中间体具有很高的降解效率。这些结果表明，该催化剂可用作降解废水中有毒有机污染物的高效Fenton类催化剂。

图形概要