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Vol. 36 No. 2 (2024): Vol 36 Issue 2, 2024

Copyright (c) 2024 Keerti Rani, Jaiveer Singh, Arti Jangra, Jai Kumar, Ramesh Kumar

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An Efficient Adsorption of Safranin O Dye on Ascorbic Acid Coated Nanoparticles: Thermodynamics, Kinetics and Isotherm Studies

https://doi.org/10.14233/ajchem.2024.30581
Keerti Rani
Department of Chemistry, Kurukshetra University, Kurukshetra-136119, India
Jaiveer Singh
Department of Chemistry, Kurukshetra University, Kurukshetra-136119, India
https://orcid.org/0000-0001-8965-6919
Arti Jangra
Department of Chemistry, Kurukshetra University, Kurukshetra-136119, India
https://orcid.org/0000-0003-4113-3451
Jai Kumar
Department of Chemistry, Kurukshetra University, Kurukshetra-136119, India
https://orcid.org/0000-0003-2556-6345
Ramesh Kumar
Department of Chemistry, Kurukshetra University, Kurukshetra-136119, India
https://orcid.org/0000-0003-2089-2213

Corresponding Author(s) : Ramesh Kumar

rameshkumarkuk@gmail.com

Asian Journal of Chemistry, Vol. 36 No. 2 (2024): Vol 36 Issue 2, 2024

Abstract

In present work, the chemical co-precipitation method was used to prepare the ascorbic acid coated magnetite nanoparticles (AA-MNPs) which were then applied for the elimination of hazardous dye safranin O from the contaminated water. With the help of XRD peaks and Debye-Scherrer equation, the average size of the ascorbic acid coated nanoparticles was found to be 18 nm. These surface coated nanoparticles were further characterized using FTIR, TGA, FESEM and VSM methods. Thus, formed surface functionalized  magnetite nanoparticles (MNPs) were used for the removal of safranin O dye from the contaminated water, using batch adsorption  technique by considering dosage of AA-MNPs, dye concentration, pH of solution and temperature. It was found that synthesized AA- MNPs showed the highest dye removal efficacy (more than 97%) when the dye concentration was taken 50 ppm. Different  thermodynamic parameters were measured, including ∆Gº, ∆Hº and ∆Sº. Adsorption of safranin O dye on the surface of AA-MNPs was  found to be exothermic and spontaneous, according to thermodynamic parameters. The Freundlich model matched the experimental  equilibrium data better, implying a heterogeneous multilayer adsorption on nanoparticles surface, according to the isotherm analysis.  Moreover, the investigation of kinetic data suggested a pseudo 2nd order rate for the safranin O dye adsorption process. In addition, a  comparative investigation has been made for the efficacy of the removal of safranin O dye by ascorbic acid coated magnetic  nanoparticles with the adsorbents that have previously been reported. 

Keywords

Magnetite nanoparticles Ascorbic acid Safranin O Adsorption Kinetics
Rani, K., Singh, J., Jangra, A., Kumar, J., & Kumar, R. (2024). An Efficient Adsorption of Safranin O Dye on Ascorbic Acid Coated Nanoparticles: Thermodynamics, Kinetics and Isotherm Studies. Asian Journal of Chemistry, 36(2), 317–324. https://doi.org/10.14233/ajchem.2024.30581
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