Carbon/MnO₂ composites including graphene/MnO₂ and CNT/MnO₂ were synthesized to treat perfluorooctanoic acid (PFOA) for the first time. Owing to the fast self-dispersion of carbon/MnO₂ particles with H₂O₂ as the fuel, large solid surface area provided by carbon materials, and the effective simultaneous generation of OH and O₂⁻, high PFOA degradation and defluorination efficiencies were achieved synchronously within 15 min. Interestingly, different OH scavengers showed opposite effects on PFOA degradation. The inhibition of PFOA degradation by nitrobenzene was due to the scavenging of OH resulting in the restraint of O₂- generation. While the increasing PFOA degradation efficiency with the addition of high concentration of iso-propanol and tert-butyl alcohol was due to the less polarity of them than water resulting in the higher reactivity of O₂⁻. Conclusively, the study provided a new alternative for the effective treatment of PFOA.

首次合成了包括石墨烯/ MnO ₂和CNT / MnO _2的碳/ MnO ₂复合材料以处理全氟辛酸（PFOA）。由于碳的快速自分散/的MnO _2个颗粒用H ₂ ö ₂作为燃料，通过碳材料提供大的固体的表面积，和有效同时产生的OH和O ₂ ^- ，高PFOA降解和脱氟效率为在15分钟内同步完成。有趣的是，不同的OH清除剂对PFOA的降解表现出相反的作用。硝基苯对PFOA降解的抑制作用是由于清除了OH导致O _2-生成受到抑制。虽然通过加入异丙醇和叔丁醇的高浓度的增加PFOA降解效率比水导致的O-的较高的反应性他们的较少极性是由于₂ ^- 。最终，该研究为有效治疗PFOA提供了新的选择。