Adsorption of Malachite Green on CaO-ZnFe<sub>2</sub>O<sub>4</sub> Composite Derived from Agro-industrial Waste
This study focuses on the synthesis of a CaO-ZnFe<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf>O<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</inf> composite derived from waste materials such as eggshell CaO and ZnFe<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf>O<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</inf> via a combustion process using orange peel as fuel. The composite was prepared by mechanical milling, sonication in ethanol, and annealing. Structural, morphological, and surface characterizations were carried out using X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and Brunauer-Emmett- Teller (BET) analysis, which confirmed the successful formation of the composite. The material was shown to be highly effective in removing malachite green dye through adsorption studies, demonstrating a significant capacity for dye removal. Kinetic modeling based on the pseudo-second-order equation indicated that the adsorption process was driven by chemisorption. In addition, the adsorption process was found to be endothermic, as the removal of malachite green increased with increasing solution temperature.
Authors
- Francisco J. Cano (ORCID: https://orcid.org/0000-0002-7173-7427)
- J. Escorcia−García (ORCID: https://orcid.org/0000-0002-4746-9047)
- Odín Reyes−Vallejo (ORCID: https://orcid.org/0000-0001-9878-9211)
- Rocío Magdalena Sánchez-Albores (ORCID: https://orcid.org/0000-0002-5197-0125)
- P. Bartolo‐Pérez (ORCID: https://orcid.org/0000-0003-3685-633X)
- A. Ashok (ORCID: https://orcid.org/0009-0008-5447-6991)
- Roliber Escobar-Velázquez (ORCID: https://orcid.org/0009-0007-1213-4419)
- Clara López-Aguilar
Institutions
- Institut des Molécules et Matériaux du Mans (FR)
- Universidad Autónoma de Chiapas (MX)
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (MX)
Publication Details
- Published
- 2024-10-23
- DOI
- https://doi.org/10.1109/cce62852.2024.10770930
- Citations
- 3
- Primary Topic
- Adsorption and biosorption for pollutant removal
- Type
- article
- Field-Weighted Citation Impact
- 0.60