Abstract
Proposed work describes a simple technique for production of bio-synthesized Magnesium oxide modified magnetite nanoparticles (MgO@MNPs) for the removal of Eriochrome black T (EBT) dyes using Almond (Terminalia catappa) leaf extract (ALE). The adsorption conditions were tuned for the maximal removal of EBT dyes by altering many physicochemical factors, including pH, initial concentration of EBT dye, MgO@MNPs dosage, contact time, and reaction temperature. The Langmuir model was found to be suitable for describing the adsorption process, which had a high adsorption capacity (qmax) of 208.33 mg/g for removing the EBT. The kinetic and thermodynamic aspects of the process were also evaluated, showing that it followed a pseudo-second-order model and was exothermic and spontaneous. Desorption was effective using NaOH, and the adsorbent could be reused for at least seven cycles with at least 96% removal percentage of EBT dye. A comparison table was provided, demonstrating the effectiveness of this study, which presents a promising approach for practical applications in wastewater treatment.
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Acknowledgements
The authors would like to express their gratitude to the Director of National Institute of Technology, Raipur for providing laboratory facilities. Additionally, the authors would like to thank the University Grant Commission [F.No.16-6(DEC. 2018)/2019 (NET/CSIR)] for their financial support. The authors would also like to extend their appreciation to IIT Bhilai, IIT Guwahati, and NIT Surathkal for providing FE-SEM, VSM, and BET instruments respectively. These contributions were invaluable to the success of the research project.
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University Grants Commission—South Eastern Regional Office,16-6(DEC. 2018)/2019(NET/CSIR),Aditya Narayan Tiwari
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Our experiment on the green synthesis of nanoparticles highlights the potential of using plant extracts as reducing agents for the eco-friendly production of nanoparticles. The results obtained from this study contribute to the growing field of green nanotechnology and open up new avenues for sustainable nanoparticle synthesis. Each author played a significant role in the experimental design, data analysis, and manuscript preparation.
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Tiwari, A.N., Tapadia, K. & Thakur, C. A Facile Synthesis of MgO Decorated Spinel Magnetic Nanoparticles Using Terminalia catappa Leaf Extract: Its Application in EBT Dye Removal. Chemistry Africa (2024). https://doi.org/10.1007/s42250-024-00948-9
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DOI: https://doi.org/10.1007/s42250-024-00948-9