Catalytic Degradation Performance of Manganese-Zinc Ferrite Nanoparticles Coated With Eggshell-Derived Calcium Oxide For Rhodamine B Removal
Walaa Alharbi, Khadija Alharbi, Abdullah Alotaibi and Sami Abdel Azeem* Author for corresponding; e-mail address: sami_a@su.edu.sa, sma13@fayoum.edu.eg
Volume: Vol.52 No.1 (January 2025)
Research Article
DOI: https://doi.org/10.12982/CMJS.2025.006
Received: 27 Febuary 2024, Revised: 25 November 2024, Accepted: 15 December 2024, Published: 29 January 2025
Citation: Alharbi W., Alharbi K., Alotaibi A. and Azeem S.A., Catalytic degradation performance of manganese-zinc ferrite nanoparticles coated with eggshell-derived calcium oxide for rhodamine B removal. Chiang Mai Journal of Science, 2025; 52(1): e2025006. DOI 10.12982/CMJS.2025.006.
Abstract
Low-cost natural materials-mediated adsorbents for the removal of dye pollutants from water are gaining popularity over chemical adsorbents due to their eco-friendliness, widespread availability, and ease of manufacture. A CaO-derived from eggshell was used to alter the surface of zinc-manganese-ferrite (Zn0.6Mn0.4Fe2O4) nanoparticles by the post-precipitation method. The CaO/Zn0.6Mn0.4Fe2O4 nanocomposite was studied using FT-IR , XRD and SEM, and utilized for the removal of Rhodamine B dye. The adsorption efficiency of 10 mg L-1 RhB reached 75% at pH 4.0, 60 min of shaking, and 2.0 g L-1 of adsorbent. The intra-particle diffusion process was a rate-limiting phase, and the results matched the pseudo-second-order kinetics model. Adsorption data were well-fitting by the Langmuir isotherm model, with R2=0.989, KL =0.232, and maximal monolayer capacity (qmax) of 30.7mg.g-1.The Tempkin isotherm revealed that the lateral repulsive forces are non-significant. The D-R model revealed positive adsorption-free energy confirming an endothermic chemical adsorption process. The Fenton-like catalytic degradation showed a removal of 98% at 80 min and increased by increasing the TDS of the medium.