Studies on the adsorption of amoxicillin on multi-wall carbon nanotubes

Davoud Balarak; Ferdos Kord Mostafapour; Edris Bazrafshan; Tawfik A. Saleh

doi:10.2166/wst.2017.025

Studies on the adsorption of amoxicillin on multi-wall carbon nanotubes

Davoud Balarak, Ferdos Kord Mostafapour, Edris Bazrafshan, Tawfik A. Saleh^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

61 Scopus citations

Abstract

This study examined the feasibility of removing amoxicillin (AMO) from aqueous solutions using multi-wall carbon nanotubes. The equilibrium adsorption data were analyzed using four widely applied isotherms: Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich. The results showed that the Langmuir isotherm model fits well the obtained experimental data. The adsorption process followed the pseudo-second-order model. The activation energy was found to be 19 kJ/mol. The Standard free energy changes, ΔG⁰, values were negative; the standard enthalpy change (ΔH⁰), and standard entropy change (ΔS⁰) values of the process were 4 kJ/mol and 36 J/mol.K. Results suggested that the AMO adsorption on carbon nanotubes was a spontaneous process.

Original language	English
Pages (from-to)	1599-1606
Number of pages	8
Journal	Water Science and Technology
Volume	75
Issue number	7
DOIs	https://doi.org/10.2166/wst.2017.025
State	Published - Apr 2017

Bibliographical note

Publisher Copyright:
© IWA Publishing 2017.

Keywords

Adsorption
Amoxicillin
Carbon nanotube
Isotherm
Kinetics
Thermodynamic

ASJC Scopus subject areas

Environmental Engineering
Water Science and Technology

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10.2166/wst.2017.025

Cite this

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title = "Studies on the adsorption of amoxicillin on multi-wall carbon nanotubes",

abstract = "This study examined the feasibility of removing amoxicillin (AMO) from aqueous solutions using multi-wall carbon nanotubes. The equilibrium adsorption data were analyzed using four widely applied isotherms: Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich. The results showed that the Langmuir isotherm model fits well the obtained experimental data. The adsorption process followed the pseudo-second-order model. The activation energy was found to be 19 kJ/mol. The Standard free energy changes, ΔG0, values were negative; the standard enthalpy change (ΔH0), and standard entropy change (ΔS0) values of the process were 4 kJ/mol and 36 J/mol.K. Results suggested that the AMO adsorption on carbon nanotubes was a spontaneous process.",

keywords = "Adsorption, Amoxicillin, Carbon nanotube, Isotherm, Kinetics, Thermodynamic",

author = "Davoud Balarak and Mostafapour, {Ferdos Kord} and Edris Bazrafshan and Saleh, {Tawfik A.}",

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AU - Balarak, Davoud

AU - Mostafapour, Ferdos Kord

AU - Bazrafshan, Edris

AU - Saleh, Tawfik A.

N1 - Publisher Copyright: © IWA Publishing 2017.

PY - 2017/4

Y1 - 2017/4

N2 - This study examined the feasibility of removing amoxicillin (AMO) from aqueous solutions using multi-wall carbon nanotubes. The equilibrium adsorption data were analyzed using four widely applied isotherms: Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich. The results showed that the Langmuir isotherm model fits well the obtained experimental data. The adsorption process followed the pseudo-second-order model. The activation energy was found to be 19 kJ/mol. The Standard free energy changes, ΔG0, values were negative; the standard enthalpy change (ΔH0), and standard entropy change (ΔS0) values of the process were 4 kJ/mol and 36 J/mol.K. Results suggested that the AMO adsorption on carbon nanotubes was a spontaneous process.

AB - This study examined the feasibility of removing amoxicillin (AMO) from aqueous solutions using multi-wall carbon nanotubes. The equilibrium adsorption data were analyzed using four widely applied isotherms: Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich. The results showed that the Langmuir isotherm model fits well the obtained experimental data. The adsorption process followed the pseudo-second-order model. The activation energy was found to be 19 kJ/mol. The Standard free energy changes, ΔG0, values were negative; the standard enthalpy change (ΔH0), and standard entropy change (ΔS0) values of the process were 4 kJ/mol and 36 J/mol.K. Results suggested that the AMO adsorption on carbon nanotubes was a spontaneous process.

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KW - Amoxicillin

KW - Carbon nanotube

KW - Isotherm

KW - Kinetics

KW - Thermodynamic

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Studies on the adsorption of amoxicillin on multi-wall carbon nanotubes

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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