Irradiation of Fe–Mn@SiO2 with microwave energy enhanced its Fenton-like catalytic activity for the degradation of methylene blue

Peleyeju, Moses G.; Mgedle, Nande; Viljoen, Elvera; Scurrel, Mike S.; Ray, Sekhar C.

doi:10.1007/s11164-021-04526-3

Cited by 3 publications

(1 citation statement)

References 61 publications

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“…Other metal ions such as Ca 2+ , Mg 2+ , Co 2+ and Cu 2+ had no impacts or little inhibitory effect on the Fe(III)-NTA-complex-catalyzed Fenton-like reaction. Moses G et al [37] synthesized Mn-Fe/SiO 2 bimetallic catalysts for the heterogeneous Fenton degradation of methylene blue, with 97% of the dye degraded at near neutral pH. Unfortunately, the reaction rate of this catalyst was limited by silica spheres due to the lack of pore structure, and it is difficult to effectively mineralize organic pollutants.…”

Section: Introductionmentioning

confidence: 99%

Spherical ZVI/Mn-C Bimetallic Catalysts for Efficient Fenton-like Reaction under Mild Conditions

Lü

Wang

et al. 2022

Catalysts

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The heterogeneous Fenton-like reaction has been receiving increasing attention for its inexpensiveness and high efficiency in water treatment. In this study, a novel strategy was proposed for preparing spherical ZVI/Mn-C bimetallic catalysts with a high activity for a Fenton-like reaction by using the ammonium alginate assisted sol–gel method coupled with a carbothermic reduction. The results showed that the obtained ZVI/Mn-C spheres had a uniform size, smooth surface and good sphericity, and the particle size of ZVI was limited to about 30 nm by the carbon layer. Among all catalysts, the ZVI/Mn-C-31 catalyst exhibited the highest phenol degradation efficiency in the Fenton-like process, and almost 100% phenol degradation efficiency was achieved under neutral pH at room temperature within 5 min. Moreover, the ZVI/Mn-C-31/H2O2 system showed a 100% degradation efficiency for removing a wide range of aromatic pollutants, including catechol, resorcinol and o-nitrophenol. Moreover, the radicals-scavenging experiment illustrated that the ·OH played a key factor in mineralizing the organic matters, and the ·O2− generated from the MnO-H2O2 system accelerated the conversion rate of ferric iron to ferrous iron. Due to the synergistic effects between ZVI and MnO, the ZVI/Mn-C-31 catalyst performed excellently in the Fenton-like reaction at an extended pH range.

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Section: Introductionmentioning

confidence: 99%

Spherical ZVI/Mn-C Bimetallic Catalysts for Efficient Fenton-like Reaction under Mild Conditions

Lü

Wang

et al. 2022

Catalysts

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Fabrication of magnetic MnFe2O4@HL composites with an in situ Fenton-like reaction for enhancing tetracycline degradation

Zhao,

Yang

2024

Journal of Colloid and Interface Science

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Synthesis of the MnO₂-Fe₃O₄ catalyst support on amorphous silica: a new Fenton’s reagent in the degradation of the reactive blue-19 in aqueous solution

Huong

Son

2023

Journal of Environmental Science and Health, Part A

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Irradiation of Fe–Mn@SiO2 with microwave energy enhanced its Fenton-like catalytic activity for the degradation of methylene blue

Cited by 3 publications

References 61 publications

Spherical ZVI/Mn-C Bimetallic Catalysts for Efficient Fenton-like Reaction under Mild Conditions

Spherical ZVI/Mn-C Bimetallic Catalysts for Efficient Fenton-like Reaction under Mild Conditions

Fabrication of magnetic MnFe2O4@HL composites with an in situ Fenton-like reaction for enhancing tetracycline degradation

Synthesis of the MnO₂-Fe₃O₄ catalyst support on amorphous silica: a new Fenton’s reagent in the degradation of the reactive blue-19 in aqueous solution

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Irradiation of Fe–Mn@SiO2 with microwave energy enhanced its Fenton-like catalytic activity for the degradation of methylene blue

Cited by 3 publications

References 61 publications

Spherical ZVI/Mn-C Bimetallic Catalysts for Efficient Fenton-like Reaction under Mild Conditions

Spherical ZVI/Mn-C Bimetallic Catalysts for Efficient Fenton-like Reaction under Mild Conditions

Fabrication of magnetic MnFe2O4@HL composites with an in situ Fenton-like reaction for enhancing tetracycline degradation

Synthesis of the MnO2-Fe3O4 catalyst support on amorphous silica: a new Fenton’s reagent in the degradation of the reactive blue-19 in aqueous solution

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Synthesis of the MnO₂-Fe₃O₄ catalyst support on amorphous silica: a new Fenton’s reagent in the degradation of the reactive blue-19 in aqueous solution