Study of the simulated sunlight photolysis mechanism of ketoprofen: the role of superoxide anion radicals, transformation byproducts, and ecotoxicity assessment
The aim of this study was to investigate the photolysis mechanism of ketoprofen (KET) under
simulated sunlight. The results demonstrated that the photolysis of KET aligned well with
pseudo first-order kinetics. Radical scavenging experiments and dissolved oxygen
experiments revealed that the superoxide anion radical (O2˙−) played a primary role in the
photolytic process in pure water. Bicarbonate slightly increased the photodegradation of
KET through generating carbonate radicals, while DOM inhibited the photolysis via both …
simulated sunlight. The results demonstrated that the photolysis of KET aligned well with
pseudo first-order kinetics. Radical scavenging experiments and dissolved oxygen
experiments revealed that the superoxide anion radical (O2˙−) played a primary role in the
photolytic process in pure water. Bicarbonate slightly increased the photodegradation of
KET through generating carbonate radicals, while DOM inhibited the photolysis via both …
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