Perfluoroalkyl substance (PFAS) is a class of anionic surfactants with superior stability in the environment. Due to the harmful health effect, PFASs have been listed as the priority controlled pollutants. Our recent study had developed a cationic surfactant induced ternary self-assembled micelle system to effectively degrade PFASs. In this study, using perfluorooctanoic acid (PFOA) as the model pollutant, we further investigated the effects of different variables on the degradation processes. According to the results of laser flash photolysis and dynamic light scattering, the degradation of PFOA was positively correlated with the chain length of the surfactants. While for double-chain surfactant, the steric effect might hinder the reaction. Our results also indicated that in the presence of high concentration of NaCl, the electrostatic attraction between Cl⁻ and the positively charged micelle made the micelle structure loose and thus slightly reduced the degradation efficiency. Similarly, the presence of NOM could also affect the degradation process via regulating the micelle structure. Furthermore, the optimal degradation efficiency for PFOA was obtained at neutral pH by the compromise of hydrated electron yield and self-assembled micelle structure. This composite showed good adaptability under ambient conditions and would have great potential for treatment of industrial PFAS containing wastewater, e.g., in the ternary micelle system, 18.95 mg L⁻¹ PFOA could be completely degraded within 8 h without any pretreatments.

全氟烷基物质（PFAS）是一类在环境中具有出色稳定性的阴离子表面活性剂。由于有害健康影响，PFAS被列为优先控制污染物。我们最近的研究开发了阳离子表面活性剂诱导的三元自组装胶束系统，可有效降解PFAS。在这项研究中，使用全氟辛酸（PFOA）作为模型污染物，我们进一步研究了不同变量对降解过程的影响。根据激光闪光光解和动态光散射的结果，PFOA的降解与表面活性剂的链长呈正相关。对于双链表面活性剂，空间效应可能会阻碍反应。我们的结果还表明，在高浓度的NaCl存在下，^-并且带正电的胶束使胶束结构疏松，因此稍微降低了降解效率。同样，NOM的存在也可以通过调节胶束结构来影响降解过程。此外，通过水合电子产率和自组装胶束结构的折衷，在中性pH下获得了PFOA的最佳降解效率。该复合材料在环境条件下显示出良好的适应性，并且具有处理含工业PFAS废水的巨大潜力，例如，在三元胶束系统中，无需任何预处理，18.95 mg L ^-1 PFOA可以在8小时内完全降解。