4-chlorophenol (4-CP) with high concentration is difficult to degrade thoroughly by traditional treatment methods due to its high biotoxicity and refractory to bio-degradation. A novel catalytic wet peroxide oxidation (CWPO) system based on Zn-CNTs-Cu catalysts through the in-situ generation of H₂O₂ was constructed and investigated for the degradation of high-concentration 4-CP for the first time. Zn-CNTs-Cu composite was prepared by the infiltration melting-chemical replacement method. The operational factors effect, mechanism, and pathways of Zn-CNTs-Cu/O₂ system for high concentration of 4-CP degradation were systematically performed and discussed. At the optimal experimental conditions, the degradation efficiency of 4-CP through CWPO system with Zn-CNTs-Cu/O₂ achieved 100 %, which was 689 % higher than that of wet oxidation system with O₂ alone. According to the mainly in-situ generated H₂O₂, the strong oxidative OH radical and wet-oxidation effect of O₂, high concentration of 4-CP degraded into small molecular organic matter, even been mineralized into carbon dioxide and water in the Zn-CNTs-Cu/O₂ based CWPO system. Overall, Zn-CNTs-Cu/O₂ CWPO system can efficiently degrade high-concentration 4-CP through the in-situ generation of H₂O₂ without extra replenishment, and it provides a novel method and strategy to the efficient treatment of refractory chlorophenols wastewater.

高浓度的4-氯苯酚（4-CP）具有高生物毒性和难降解性，因此传统的处理方法难以彻底降解。建立了一种基于Zn-CNTs-Cu催化剂通过原位生成H ₂ O ₂的新型催化湿式过氧化（CWPO）系统，并首次研究了其对高浓度4-CP的降解作用。Zn-CNTs-Cu复合材料是通过浸渗熔融化学置换法制备的。Zn-CNTs-Cu / O _2的影响因素，作用机理及途径高浓度的4-CP降解的系统进行了系统地讨论。在最佳实验条件下，Zn-CNTs-Cu / O ₂通过CWPO体系对4-CP的降解效率达到100％，比单独使用O ₂的湿氧化体系高689％。根据原位生成的H ₂ O ₂，强的O H自由基的氧化和O _2的湿氧化作用，高浓度的4-CP降解为小分子有机物，甚至在水中矿化为二氧化碳和水。基于Zn-CNTs-Cu / O ₂的CWPO系统。总体而言，Zn-CNTs-Cu / O ₂CWPO系统可通过原位生成H ₂ O ₂来有效降解高浓度的4-CP ，而无需额外补充，为高效处理难处理的氯酚废水提供了新的方法和策略。