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首页> 外文期刊>RSC Advances >Low temperature chlorobenzene catalytic oxidation over MnOx/CNTs with the assistance of ozone
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Low temperature chlorobenzene catalytic oxidation over MnOx/CNTs with the assistance of ozone

机译：臭氧辅助下的MnOx / CNTs低温氯苯催化氧化

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摘要

Manganese oxide supported on carbon nanotubes (MnOx/CNTs) were prepared by an impregnation method and their catalytic oxidation performances of chlorobenzene (CB) with the assistance of ozone were investigated. The experimental results indicated a synergistic effect between the MnOx/CNTs catalyst and ozone promotion for CB destruction, which promoted CB oxidation at temperatures between 80 degrees C and 280 degrees C. Especially at temperatures below 120 degrees C, both CB conversion and CO2 selectivity above 95% were achieved with an apparent activation energy of 15.0 kJ mol(-1). Moreover, MnOx/CNTs showed good stability and resistance to chlorine poisoning, which was demonstrated by stable catalytic activity for a long-term CB catalytic oxidation with 2300 ppm ozone up to 240 h.
机译：采用浸渍法制备了负载在碳纳米管（MnOx / CNTs）上的氧化锰，并研究了其在臭氧辅助下对氯苯（CB）的催化氧化性能。实验结果表明，MnOx / CNTs催化剂与臭氧促进CB破坏具有协同作用，这在80到280摄氏度之间促进了CB氧化。特别是在低于120摄氏度的温度下，CB转化率和CO2选择性都高于95％的表观活化能为15.0 kJ mol（-1）。此外，MnOx / CNTs表现出良好的稳定性和抗氯中毒性，这通过在2300 ppm的臭氧下长达240小时的长期CB催化氧化的稳定催化活性证明。

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