Fig. 19: Assessment of the scavengers responsible for PFOA degradation using different photocatalysts. | npj Clean Water

Fig. 19: Assessment of the scavengers responsible for PFOA degradation using different photocatalysts.

From: Technology status to treat PFAS-contaminated water and limiting factors for their effective full-scale application

Fig. 19

a Scavenger experiments prove that photogenerated holes are the only species capable of initiating PFOA degradation in a BN-driven photocatalytic system, b in TiO2-driven photocatalytic systems, it was demonstrated that other radical species participate in degradation of PFOA and this was assessed using EDTA (to scavenge holes), SOD (to scavenge superoxide/hydroperoxyl) and TBA (to scavenge hydroxyl radicals)144.

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