Sintered Magnesium Ferrite Particles in Decolorization of Anthraquinone dye AV 109: Combination of Adsorption and Fenton Process

Authors

  • Stevan S. Stupar Ministry of Defence, Military Technical Institute, Ratka Resanovića 1, 11030 Belgrade, Serbia.
  • Pavel Otřísal Palacký University Olomouc, Faculty of Physical Culture, Czech Republic.
  • Negovan D. Ivanković 3University of Defence, Military Academy, Generala Pavla Jurišića Šturma 33, 11000 Belgrade, Serbia.
  • Dušan Ž. Mijin University of Belgrade, Faculty of Technology and Metallurgy, Karnegijeva 4, 11120 Belgrade, Serbia.
  • Marija M. Vuksanović University of Belgrade, Department of Chemical Dynamics and Permanent Education, „VINČA" Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, Mike Petrovića Alasa 12-14, 11351 Belgrade, Serbia.
  • Radmila M. Jančić Heinemann University of Belgrade, Faculty of Technology and Metallurgy, Karnegijeva 4, 11120 Belgrade, Serbia.
  • Aleksandra D. Samolov Ministry of Defence, Military Technical Institute, Ratka Resanovića 1, 11030 Belgrade, Serbia.

Abstract

Magnesium ferrite (MgFe2O4) particles were synthetized by sol-gel method and used in the decolorization of the Acid Violet 109 (anthraquinone dye, AV109) water solutions' by combination of adsorption and heterogeneous Fenton process. The material's morphology and elemental analysis of the surface were revealed by Scanning electron microscopy and Energy Dispersive Spectroscopy (SEM/EDS). The X-Ray Diffraction (XRD) technique was used to analyze the crystallographic phase. In the first part of the decolorization experiment, the adsorption ability of the synthesized particles was investigated. During the adsorption study influence of pH was investigated. In the second part of the decolorization experiment, the effects of the various parameters on the Fenton process were studied such as the initial concentrations of hydrogen peroxide, dye, and magnesium ferrite particles. Influence of magnesium ferrite particles structure, pH value and reaction temperature were also investigated. The decolorization reaction was followed by UV-Visible (UV-Vis) spectrophotometry. At optimal conditions, the dye decolorization was 99.1% (55.4% by adsorption and 43.7% by the Fenton process). Both the adsorption and the Fenton process obey second-order kinetics.

Downloads

Published

2025-06-03

Issue

Vol. 57 No. 2 (2025)

Section

Articles