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- Title
Efficient NiFe<sub>2</sub>O<sub>4</sub>@g-C<sub>3</sub>N<sub>4</sub> Nanosorbent for Oxytetracycline Adsorption: Removal Modeling and Selectivity.
- Authors
Elamin, Mohamed R.; Elamin, Nuha Y.; Alluhayb, Abdullah H.; Taha, Kamal K.; Ben Aissa, Mohamed Ali; Mallah, Abdulrahman; Modwi, Abueliz
- Abstract
Nanosorbent NiFe2O4@g-C3N4 was produced via green and ultrasonication methods to remove oxytetracycline (OTC) from aqueous solutions. The prepared material was analyzed using powder x-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, energy-dispersive x-ray spectroscopy (EDX), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The adsorption capacity of the NiFe2O4@g-C3N4 nanosorbent for OTC decontamination was studied using a batch experiment under various parameters. The adsorption capacity was notably increased to 1634 mg g−1 under fixed experimental conditions. The kinetic and isothermal analyses were conducted using several optimal pH and temperature models. The adsorption kinetics graphs aligned with the pseudo-second-order model, suggesting chemical adsorption via electrostatic interactions. The adsorption isotherm curves aligned more closely with the Langmuir model than the Temkin and Freundlich models, suggesting a monolayer adsorption mechanism. The adsorption mechanism was clearly elucidated using FTIR investigations. The results of the study indicate that NiFe2O4@g-C3N4 nanosorbent is a promising candidate for specific elimination of OTC on many different levels for the treatment of wastewater.
- Subjects
ADSORPTION (Chemistry); X-ray powder diffraction; ADSORPTION kinetics; ADSORPTION isotherms; ADSORPTION capacity
- Publication
Journal of Electronic Materials, 2024, Vol 53, Issue 10, p6164
- ISSN
0361-5235
- Publication type
Article
- DOI
10.1007/s11664-024-11216-4