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Mika Erik Tapio Sillanpää

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

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  • Andrei Ivanets, Belarus Academy of Sciences
  • ,
  • Vladimir Prozorovich, Belarus Academy of Sciences
  • ,
  • Valentin Sarkisov, Belarus Academy of Sciences
  • ,
  • Marina Roshchina, Belarus Academy of Sciences
  • ,
  • Inga Grigoraviciute-Puroniene, Vilnius University
  • ,
  • Aleksej Zarkov, Vilnius University
  • ,
  • Aivaras Kareiva, Vilnius University
  • ,
  • Vhahangwele Masindi, University of South Africa
  • ,
  • Chongqing Wang, Zhengzhou University
  • ,
  • Varsha Srivastava, Lappeenranta University of Technology, University of Oulu
  • ,
  • Mika Sillanpää

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
JournalCeramics International
Pages (from-to)29786-29794
Number of pages9
Publication statusPublished - Nov 2021

Bibliographical note

Publisher Copyright:
© 2021 Elsevier Ltd and Techna Group S.r.l.

    Research areas

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

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