Investigation of Kinetics of Adsorption of Acidic Blue 206 Dye on Multi-Wall Carbon Nano Tube Using Linear and Nonlinear Regression and Activation Energy Determination

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SHABANI MOHSEN

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Journal: Nashrieh Shimi va Mohandesi Shimi Iran Year:2021 | Volume:39 | Issue:4 (98) Page(s): 25-34

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Title

Investigation of Kinetics of Adsorption of Acidic Blue 206 Dye on Multi-Wall Carbon Nano Tube Using Linear and Nonlinear Regression and Activation Energy Determination

Author(s)

SHABANI MOHSEN | Issue Writer Certificate

Keywords

KineticsQ2

Surface adsorptionQ2

acidic blue 206 dyeQ1

Multi-wall carbon nanotubeQ1

Activation EnergyQ1

linear regressionQ1

nonlinear regressionQ1

Abstract

In this research, the Kinetics of removal of acidic blue 206, an acidic dye, from aqueous solution by Multi-wall carbon nanotube at optimized pH of 6. 5 and 298K has been investigated. Six Kinetics models contain pseudo-first-order, pseudo-second-order, intra-particle, Elovich, Bingham, and modified Freundlich model used. Kinetic data were fitted by these six models using linear and nonlinear regression. The results showed that the pseudo-second-order model was best fitted in both linear and nonlinear regression methods. The rate-determining step was the Surface adsorption. The calculated qe at pseudo-first-order and pseudo-second-order models, (73mg/g and 75mg/g, respectively) are near the experimental value (99 mg/g). The order of compatibility of data with other models at nonlinear regression is pseudo-first order> Bingham> modified Freundlich> Elovich> intra-particle diffusion models. For leaner regression the order of compatibility of data are Bingham> elovich> modified freundlich> intra-particle diffusion> pseudo-first-order models. The calculated Arrhenius Activation Energy was-61. 63kJ/mol. The negative Activation Energy, Ea, means that there is no barrier energy on Surface adsorption and the adsorption is exothermic.

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APA: Copy

SHABANI, MOHSEN. (2021). Investigation of Kinetics of Adsorption of Acidic Blue 206 Dye on Multi-Wall Carbon Nano Tube Using Linear and Nonlinear Regression and Activation Energy Determination. NASHRIEH SHIMI VA MOHANDESI SHIMI IRAN (PERSIAN), 39(4 (98) ), 25-34. SID. https://sid.ir/paper/410812/en

Vancouver: Copy

SHABANI MOHSEN. Investigation of Kinetics of Adsorption of Acidic Blue 206 Dye on Multi-Wall Carbon Nano Tube Using Linear and Nonlinear Regression and Activation Energy Determination. NASHRIEH SHIMI VA MOHANDESI SHIMI IRAN (PERSIAN)[Internet]. 2021;39(4 (98) ):25-34. Available from: https://sid.ir/paper/410812/en

IEEE: Copy

MOHSEN SHABANI, “Investigation of Kinetics of Adsorption of Acidic Blue 206 Dye on Multi-Wall Carbon Nano Tube Using Linear and Nonlinear Regression and Activation Energy Determination,” NASHRIEH SHIMI VA MOHANDESI SHIMI IRAN (PERSIAN), vol. 39, no. 4 (98) , pp. 25–34, 2021, [Online]. Available: https://sid.ir/paper/410812/en

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