Effect of magnesium ferrite doping with lanthanide ions on dark-, visible- and UV-driven methylene blue degradation on heterogeneous Fenton-like catalysts

Andrei Ivanets, Vladimir Prozorovich, Valentin Sarkisov, Marina Roshchina, Inga Grigoraviciute-Puroniene, Aleksej Zarkov, Aivaras Kareiva, Vhahangwele Masindi, Chongqing Wang, Varsha Srivastava, Mika Sillanpää

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)

Abstract

The catalytic behavior of magnesium ferrites doped with lanthanide ions (La3+, Ce3+, Sm3+, Gd3+, and Dy3+) on Methylene Blue (MB) degradation using Fenton process was studied. A slow increase in cubic Fd3m crystalline structure parameters and increase in crystallite size of doped samples magnesium ferrites were observed. A dramatic decrease in catalytic activity of catalysts obtained at 600 °C as compared to catalysts obtained at 300 °C was explicitly observed and this was grossly attributed to the elimination of surface hydroxyl groups as ascertained by FT-IR analysis. The initial magnesium ferrite demonstrated the highest catalytic activity under dark- (kˈ 0.0555 min−1) and visible-light (kˈ 0.1029 min−1) conditions. Catalytic efficiency of the lanthanides doped catalysts under UV-irradiation in accordance with the maximum appearance rate constant kˈ decreased in the following order Ce3+ > Dy3+ > La3+ ≈ MgFe2O4 > Sm3+ > Gd3+. The most active ferrites provided up to 99% of MB degradation in 60 and 20 min for visible- and UV-driven Fenton processes. Findings obtained from this study were observed to be competitive with other heterogeneous Fenton catalysts.

Original languageEnglish
Pages (from-to)29786-29794
Number of pages9
JournalCeramics International
Volume47
Issue number21
DOIs
Publication statusPublished - 1 Nov 2021

Keywords

  • Heterogeneous Fenton-like catalysts
  • Lanthanide ions doping
  • Magnesium ferrite
  • Mechanism catalytic
  • Methylene blue degradation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

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