Fig. 2: Detection of intermediate products and proposed degradation pathways.

The ion fragments intensities of OFB (A), FLE (B) and PFOS (C) during photodegradation by the CeO2/mSiO2 catalyst, and the rational degradation paths incorporating intermediates detected by LC-MS spectrometry and GC analysis for OFB (D), FLE (E) and PFOS (F), respectively. Data are denoted as mean ± s.d. (n = 3).