Mn doping improves in-situ H2O2 generation and activation in electro-Fenton process by Fe/MnCC cathode using high-temperature shock technique

Copyright © 2022 Elsevier Ltd. All rights reserved..

Fe/Mncarbon cloth (CC) was successfully fabricated through high-temperature shock (HTS) technique and used as cathode modification in heterogeneous electro-Fenton (hetero-EF) process for methylisothiazolinone (MIT) degradation. The nanocrystalline on Fe/Mn@CC electrode is doped with Fe and Mn oxides and coated with carbon layer, which could markedly enhance the electrocatalysis with high electro-chemical active area and low resistance. Fe/Mn@CC modified cathode can efficiently in-situ produce and activate H2O2, showing high electrocatalytic activity to MIT degradation. The 95.2% MIT degradation with in 100 min were achieved under the condition of 30 mA current, 0.75 L min-1 aeration intensity and initial pH = 3. Based on the CV curves and stability test, the high degradation activity revealed the kinetically beneficial regeneration of FeII/MnII in Fe/Mn@CC and activation of H2O2. The electron transfer between FeII/III and MnII/III, together with the direct FeII/MnII regeneration on the cathode, could markedly promote the H2O2 utilization, and eventually lead to MIT degradation.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:307

Enthalten in:

Chemosphere - 307(2022), Pt 3 vom: 15. Nov., Seite 136074

Sprache:

Englisch

Beteiligte Personen:

Li, Yanchao [VerfasserIn]
Wang, Can [VerfasserIn]
Pan, Shuang [VerfasserIn]
Zhao, Xin [VerfasserIn]
Liu, Ning [VerfasserIn]

Links:

Volltext

Themen:

7440-44-0
BBX060AN9V
Carbon
Ferrous Compounds
H(2)O(2) activation
Heterogeneous elecrto-Fenton
High-temperature shock
Hydrogen Peroxide
Journal Article
Methylisothiazolinone
Oxides
Synergistic activation
Water Pollutants, Chemical

Anmerkungen:

Date Completed 29.09.2022

Date Revised 29.09.2022

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.chemosphere.2022.136074

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM345058089