Degradation of organic pollutant through catalytic wet peroxide oxidation (CWPO) is becoming more and more important in modern industry. As a commonly used organic synthetic material, excessive discharge of m-cresol may lead to severe damage of the environment and become a potential threat to human health. In this study, m-cresol was degraded over novel iron loaded carbon nanotube microfibrous composite (Fe-CNT-MF) catalyst packed fixed bed reactor. The kinetic parameters were first optimized, and then the deactivation mechanism of catalyst was also studied. The optimization model showed that total organic carbon (TOC) conversion of m-cresol degradation can reach about 70% under optimum conditions. Then the catalyst deactivation test was conducted with four consecutive runs (32 hours in total). Fe-CNT-MF performed high m-cresol and TOC conversions (99% and 40%, respectively) as well as high H₂O₂ decomposition efficiency (100%) with no iron leaching. Besides, the effect of co-existing organic pollutants on m-cresol degradation was investigated with presence of 4-Ethylphenol and 2,5-dimethylphenol. Fe-CNT-MF exhibited good catalytic activity in multi-pollutant wastewater with 99% conversion for all pollutants. Finally, deactivation analysis results showed that the deactivation mechanism of Fe-CNT-MF included carbon deposition, surface property change and additional oxygen functionalities. A regeneration study was proceeded to further confirm the suggested mechanism, indicating that Fe-CNT-MF has a good regenerability.

在现代工业中，通过催化湿式过氧化物氧化（CWPO）降解有机污染物变得越来越重要。作为常用的有机合成材料，间甲酚的过量排放可能导致对环境的严重破坏，并成为对人类健康的潜在威胁。在这项研究中，间甲酚在新型载铁碳纳米管微纤维复合材料（Fe-CNT-MF）催化剂固定床反应器上降解。首先优化了动力学参数，然后研究了催化剂的失活机理。优化模型表明，在最佳条件下，间甲酚降解的总有机碳（TOC）转化率可达到约70％。然后，以四个连续运行（总共32小时）进行催化剂失活测试。₂ O ₂分解效率（100％），无铁浸出。此外，研究了在存在4-乙基苯酚和2,5-二甲基苯酚的情况下，共存有机污染物对间甲酚降解的影响。Fe-CNT-MF在多污染物废水中表现出良好的催化活性，所有污染物的转化率均达到99％。最后，失活分析结果表明，Fe-CNT-MF的失活机理包括碳沉积，表面性质变化和附加的氧官能度。进行了再生研究以进一步证实建议的机理，表明Fe-CNT-MF具有良好的再生性。