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Journal of Science and Engineering Papers

Doi: https://doi.org/10.62275/josep.24.1000001

ISSN: 3006-3191 (Online)

Science and Engineering for the Comprehensive Futures                                                                                                                                                                                                                             Call for Article

Preparation of Ni(II)Fe(III)-layered double oxide and its application for the removal of methyl orange dye: Adsorption isotherm and thermodynamic study

Volume: 1
Issue: 1
Views: 564
Original Research Article
Nanomaterials
Preparation of Ni(II)Fe(III)-layered double oxide and its application for the removal of methyl orange dye: Adsorption isotherm and thermodynamic study
Aneek Krishna Karmakar, Md. Saif Hasan and Humaira Hasin
Dept. of Applied Chemistry and Chemical Engineering, University of Rajshahi
Year: 2024
Page: 26-30

This work is licensed under CC BY-SA 4.0

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Abstract

The Ni(II)Fe(III)-LDO has been synthesized by calcination of Ni(II)Fe(III)-LDH at 500 ℃. The prepared LDO is applied in the treatment of Methyl Orange (MO) dye from a synthetic solution. A batch of experiments is conducted to examine the effects of varying adsorption parameters, i.e. initial dye concentrations and temperature. The results indicate that the adsorption of MO increases with rising dye concentration and solution temperature. Temkin, Freundlich, and Langmuir isotherms are analyzed to investigate the adsorption process at different pH levels. Various thermodynamic parameters such as ΔS, ΔH and ΔGº have also been calculated. The adsorption of MO dyes on the Ni(II)Fe(III)-LDO is found endothermic and non-spontaneous in nature. The findings reveal the adsorption process is physical sorption.

Keywords

methyl Orange, layered double oxide, isotherms, adsorption, thermodynamics

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