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Activated peracetic acid by Mn3O4 for sulfamethoxazole degradation: A novel heterogeneous advanced oxidation process by Runyu Zhou; Gaofeng Zhou; Yiqing Liu; Shenglan Liu; Shixiang Wang; Yongsheng Fu is a Environmental Science article available to read on EtoBox.

What is Activated peracetic acid by Mn3O4 for sulfamethoxazole degradation: A novel heterogeneous advanced oxidation process about?

In this study, a novel peracetic acid (PAA)-based advanced oxidation process using Mn 3 O 4 as a catalyst was proposed. A thorough sulfamethoxazole (SMX) removal could be achieved within 12 min in Mn 3 O 4 /PAA system at neutral pH. The characterization results of fresh and used Mn 3 O 4 suggested that ≡Mn(II), ≡Mn(III) and ≡Mn (IV) on Mn 3 O 4 were the Mn species for PAA activation, constituting the redox cycles of ≡Mn(II)/≡Mn(III) and ≡Mn(III)/≡Mn(IV) simultaneously. Organic radicals (i.e., CH 3 C(O)O • and CH 3 C(O)OO • ) were verified to be the dominant reactive species responsible for SMX degradation in Mn 3 O 4 /PAA system by radical scavenging experiments. The neutral condition was the most favorable pH for SMX removal in Mn 3 O 4 /PAA system and the increase of PAA or Mn 3 O 4 dosage could enhance SMX degradation. Presence of HCO 3 -and natural organic matter (NOM) could inhibit SMX degradation, while Cl -, NO 3 -and SO 4 2-had a negligible effect on SMX removal. The thorough SMX removal in successive experiments and characterization results of used Mn 3 O 4 suggested the good reusability and stability of Mn 3 O 4 for PAA activation. Based on six detected transformation pro

Who reads Activated peracetic acid by Mn3O4 for sulfamethoxazole degradation: A novel heterogeneous advanced oxidation process?

It is typically read by researchers, students, and practitioners in Environmental Science.

Author
Runyu Zhou; Gaofeng Zhou; Yiqing Liu; Shenglan Liu; Shixiang Wang; Yongsheng Fu
Publisher
Elsevier BV
Published
2022
Language
EN
Field
Environmental Science (Physical Sciences)

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