Amino acid promoted oxidation of atrazine by Fe₃O₄/persulfate.

ABSTRACT: In the present study, we demonstrated that the presence of cysteine could remarkably enhance the degradation of atrazine by Fe₃O₄/persulfate system. The results of electron paramagnetic resonance (EPR) spectra confirmed the combination of cysteine and Fe₃O₄ exhibited much higher activity on activation of persulfate to generate more SO₄^•- and •OH than Fe₃O₄ alone. At pH of 3.0, SO₄^•- and •OH contributed to about 58.2 % and 41.8 % of atrazine removal respectively, while •OH gradually dominated the oxidation of atrazine from neutral condition to alkaline condition. The co-existing Cl^- and HCO₃^- could quench SO₄^•-, resulting in the

SUBMITTER: Zheng M 

PROVIDER: S-EPMC10757014 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature