MoS₂-assisted Fe²⁺/peroxymonosulfate oxidation for the abatement of phenacetin: efficiency, mechanisms and toxicity evaluation.

ABSTRACT: In this study, molybdenum disulfide (MoS₂) was chosen as a co-catalyst to enhance the removal efficiency of phenacetin (PNT) in water by a ferrous ion-activated peroxymonosulfate (Fe²⁺/PMS) process. Operating parameters, such as the initial solution pH and chemical dose on PNT degradation efficiency were investigated and optimized. Under an initial pH of 3, an Fe²⁺ dose of 25 μM, a PMS dose of 125 μM and a MoS₂ dose of 0.1 g L^-1, the degradation efficiency of PNT reached 94.3%, within 15 min. The presence of common water constituents including Cl^-, HCO₃ ^-, SO₄ ^2- and natural organic matter (NOM) will inhibit degradation of PNT in the MoS₂/Fe²⁺/PMS system. Radi

SUBMITTER: Gao YQ 

PROVIDER: S-EPMC9042310 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature