Degradation of wood fire retardant by UV assisted biomimetic oxidation over Cu([H4]salen) using BDE209 as a model
This work aimed to study mineralization and detoxification of BDE209 by biomimetic oxidation. The removal rate (RR) of BDE209 of process was comparatively investigated in the presence of UV radiation using immobilized Cu([H4]salen) complexes (Cu([H4]salen)/IM and Cu([H4]salen)/SB) as biomimetic catalysts. Their neat and [H2]salen complexes were compared towards BDE209 degradation. UV effects were evaluated according to RR. Ecotoxicities were measured for treated BDE209 solutions and explained in terms of total organic carbon (TOC). The results showed that UV-Cu([H4]salen)/SB process evidently gave high RR and low ecotoxicity in BDE209 degradation, indicating a significant superiority of biomimetic catalysis, complex reduction and immobilization and UV radiation.