In this work, degradation of bisphenol F (BPF), bisphenol AF (BPAF) and bisphenol S (BPS) by peroxymonosulfate (PMS) with TiO₂ nano-tubes arrays (TiO₂NTAs) under simulated sunlight irradiation was investigated and compared for the first time. All three bisphenols exhibited appreciable degradation following the order of BPS < BPAF < BPF, and acidic conditions were more conducive to their degradation. The SO₄^•-, ·OH, h⁺ and ^•O₂^- were all identified in three bisphenols degradation processes. Among these, SO₄^•- and ^•O₂^- were proven to play a dominant role in BPF oxidation process, but SO₄^•- and h⁺ were confirmed as the main reactive species for BPAF and BPS removal. Owing to the different reactive species worked in different bisphenols degradation processes, the influences of inorganic anions on three bisphenols degradation were also different. By analyzing the oxidation intermediates of the three bisphenols, it was found that there were some common degradation pathways including bond-cleavage and hydroxylation of the benzene ring shared by three bisphenols. Besides, some specific degradation pathways were also identified, for example, the self-coupling was found in BPF and BPS degradation process, while the benzene ring splitting was occurred only in BPAF transformation process

在这项工作中，研究了在模拟阳光照射下，过硫酸盐 (PMS) 和 TiO ₂纳米管阵列 (TiO ₂ NTAs)对双酚 F (BPF)、双酚 AF (BPAF) 和双酚 S (BPS) 的降解作用。第一次。所有三种双酚都表现出明显的降解，顺序为 BPS < BPAF < BPF，酸性条件更有利于它们的降解。SO ₄ ^•-、• OH、h ⁺和^• O ₂ ^-都在三个双酚降解过程中得到鉴定。其中，SO ₄ ^•-和^• O ₂ ^-被证明在 BPF 氧化过程中起主导作用，但 SO ₄ ^•-和 h ⁺被证实是 BPAF 和 BPS 去除的主要反应物种。由于在不同的双酚降解过程中作用的活性物种不同，无机阴离子对三种双酚降解的影响也不同。通过分析三种双酚的氧化中间体，发现三种双酚共有的苯环发生键断裂和羟基化等降解途径。此外，还确定了一些特定的降解途径，例如在BPF和BPS降解过程中发现了自偶联，而苯环分裂仅发生在BPAF转化过程中。