Removal of Arsenazo III Dye from Wastewater Using Some Nano-Engineered Ferrite and Magnetite Adsorbents

Document Type : Original Article

Authors

1 Nuclear Materials Authority, P.O. Box 530, El Maadi, Cairo, Egypt

2 Chemistry Department, Faculty of Science, Suez Canal University, Egypt

Abstract

Arsenazo III dyes are widely used in the measurement of several elements, the most important of which are uranium, thorium, and rare earth elements. Thus, the removal of arsenazo III dye, whether free or related to various water sources, is one of the important steps in preserving the environment from pollution. In this research, the possibility of removing arsenazo III from wastewater via several nanoengineered adsorbents was studied. Magnetite, zinc ferrite and magnesium ferrite were prepared, and their adsorption properties against the dye under study were studied. The study proved that the prepared materials are nanosized and have distinct adsorption properties for arsenazo III dye molecules. The uptake of Zn-ferrite, Mg-ferrite, and magnetite by arsenazo III dye is greater at pH 2.1 than at lower or higher pH values. The time-based experiments revealed that the capacity of the Zn-ferrite, Mg-ferrite, and magnetite adsorbents for arsenazo III increased over time until they reached equilibrium (20 and 100 min for the ferrite and magnetite adsorbents, respectively). The maximum capacities of the Zn-ferrite, Mg-ferrite, and magnetite adsorbents are 107.27, 113.02, and 123.46 mg/g, respectively. The results revealed that the RL values were between 0.1 and 0.5, i.e., and thus fell within the range of favorable adsorption reactions.

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Egyptian Journal of Chemistry
Volume 68, Issue 13 - Serial Number 13
(In Loving Memory of Late Professor Doctor”Zeinab M. Nofal” In progress
December 2025
Pages 417-428

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History

  • Receive Date: 08 April 2025
  • Revise Date: 11 May 2025
  • Accept Date: 03 June 2025

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