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  • Revised manuscript- Sorption of Cd(II) and Pb(II) on mesoporous adsorbent

    Rights statement: This is the author’s version of a work that was accepted for publication in Journal of Environmental Chemical Engineering. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Environmental Chemical Engineering, 5, 1, 2017 DOI: 10.1016/j.jece.2016.12.043

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Adsorption of Cd(II) and Pb(II) ions from aqueous solutions using mesoporous activated carbon adsorbent: Equilibrium, kinetics and characterisation studies

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Adsorption of Cd(II) and Pb(II) ions from aqueous solutions using mesoporous activated carbon adsorbent: Equilibrium, kinetics and characterisation studies. / Asuquo, Edidiong D.; Martin, Alastair Douglas; Nzerem, Petrus et al.
In: Journal of Environmental Chemical Engineering, Vol. 5, No. 1, 02.2017, p. 679-698.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Asuquo, ED, Martin, AD, Nzerem, P, Siperstein, F & Fan, X 2017, 'Adsorption of Cd(II) and Pb(II) ions from aqueous solutions using mesoporous activated carbon adsorbent: Equilibrium, kinetics and characterisation studies', Journal of Environmental Chemical Engineering, vol. 5, no. 1, pp. 679-698. https://doi.org/10.1016/j.jece.2016.12.043

APA

Asuquo, E. D., Martin, A. D., Nzerem, P., Siperstein, F., & Fan, X. (2017). Adsorption of Cd(II) and Pb(II) ions from aqueous solutions using mesoporous activated carbon adsorbent: Equilibrium, kinetics and characterisation studies. Journal of Environmental Chemical Engineering, 5(1), 679-698. https://doi.org/10.1016/j.jece.2016.12.043

Vancouver

Asuquo ED, Martin AD, Nzerem P, Siperstein F, Fan X. Adsorption of Cd(II) and Pb(II) ions from aqueous solutions using mesoporous activated carbon adsorbent: Equilibrium, kinetics and characterisation studies. Journal of Environmental Chemical Engineering. 2017 Feb;5(1):679-698. Epub 2016 Dec 30. doi: 10.1016/j.jece.2016.12.043

Author

Asuquo, Edidiong D. ; Martin, Alastair Douglas ; Nzerem, Petrus et al. / Adsorption of Cd(II) and Pb(II) ions from aqueous solutions using mesoporous activated carbon adsorbent: Equilibrium, kinetics and characterisation studies. In: Journal of Environmental Chemical Engineering. 2017 ; Vol. 5, No. 1. pp. 679-698.

Bibtex

@article{88faed2086414fc89685a5892440f5bd,
title = "Adsorption of Cd(II) and Pb(II) ions from aqueous solutions using mesoporous activated carbon adsorbent: Equilibrium, kinetics and characterisation studies",
abstract = "In this study, cadmium and lead ions removal from aqueous solutions using a commercial activated carbon adsorbent (CGAC) were investigated under batch conditions. The adsorbent was observed to have a coarse surface with crevices, high resistance to attrition, high surface area and pore volume with bimodal pore size distribution which indicates that the material was mesoporous. Sorption kinetics for Cd(II) and Pb(II) ions proceeded through a two-stage kinetic profile-initial quick uptake occurring within 30 min followed by a gradual removal of the two metal ions until 180 min with optimum uptake (qe,exp) of 17.23 mg g1 and 16.84 mg g1 for Cd(II) and Pb(II) ions respectively. Modelling of sorption kinetics indicates that the pseudo first order (PFO) model described the sorption of Pb(II) ion better than Cd(II), while the reverse was observed with respect to the pseudo second order (PSO) model. Intraparticle diffusion modelling showed that intraparticle diffusion may not be the only mechanism that influenced the rate of ions uptake. Isotherm modelling was carried out and the results indicated that the Langmuir and Freundlich models described the uptake of Pb(II) ion better than Cd(II) ion. A comparison of the two models indicated that the Langmuir isotherm is the better isotherm for the description of Cd(II) and Pb(II)ions sorption by the adsorbent. The maximum loading capacity (qmax) obtained from the Langmuir isotherm was 27.3 mg g1 and 20.3 mg g1 for Cd(II) and Pb(II) ions respectively.",
keywords = "Adsorption, Commercial activated carbon, Adsorbent, Lead, Cadmium, Heavy metals, Kinetics, Isotherm",
author = "Asuquo, {Edidiong D.} and Martin, {Alastair Douglas} and Petrus Nzerem and Flor Siperstein and Xiaolei Fan",
note = "This is the author{\textquoteright}s version of a work that was accepted for publication in Journal of Environmental Chemical Engineering. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Environmental Chemical Engineering, 5, 1, 2017 DOI: 10.1016/j.jece.2016.12.043",
year = "2017",
month = feb,
doi = "10.1016/j.jece.2016.12.043",
language = "English",
volume = "5",
pages = "679--698",
journal = "Journal of Environmental Chemical Engineering",
issn = "2213-2929",
publisher = "Elsevier Ltd",
number = "1",

}

RIS

TY - JOUR

T1 - Adsorption of Cd(II) and Pb(II) ions from aqueous solutions using mesoporous activated carbon adsorbent: Equilibrium, kinetics and characterisation studies

AU - Asuquo, Edidiong D.

AU - Martin, Alastair Douglas

AU - Nzerem, Petrus

AU - Siperstein, Flor

AU - Fan, Xiaolei

N1 - This is the author’s version of a work that was accepted for publication in Journal of Environmental Chemical Engineering. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Environmental Chemical Engineering, 5, 1, 2017 DOI: 10.1016/j.jece.2016.12.043

PY - 2017/2

Y1 - 2017/2

N2 - In this study, cadmium and lead ions removal from aqueous solutions using a commercial activated carbon adsorbent (CGAC) were investigated under batch conditions. The adsorbent was observed to have a coarse surface with crevices, high resistance to attrition, high surface area and pore volume with bimodal pore size distribution which indicates that the material was mesoporous. Sorption kinetics for Cd(II) and Pb(II) ions proceeded through a two-stage kinetic profile-initial quick uptake occurring within 30 min followed by a gradual removal of the two metal ions until 180 min with optimum uptake (qe,exp) of 17.23 mg g1 and 16.84 mg g1 for Cd(II) and Pb(II) ions respectively. Modelling of sorption kinetics indicates that the pseudo first order (PFO) model described the sorption of Pb(II) ion better than Cd(II), while the reverse was observed with respect to the pseudo second order (PSO) model. Intraparticle diffusion modelling showed that intraparticle diffusion may not be the only mechanism that influenced the rate of ions uptake. Isotherm modelling was carried out and the results indicated that the Langmuir and Freundlich models described the uptake of Pb(II) ion better than Cd(II) ion. A comparison of the two models indicated that the Langmuir isotherm is the better isotherm for the description of Cd(II) and Pb(II)ions sorption by the adsorbent. The maximum loading capacity (qmax) obtained from the Langmuir isotherm was 27.3 mg g1 and 20.3 mg g1 for Cd(II) and Pb(II) ions respectively.

AB - In this study, cadmium and lead ions removal from aqueous solutions using a commercial activated carbon adsorbent (CGAC) were investigated under batch conditions. The adsorbent was observed to have a coarse surface with crevices, high resistance to attrition, high surface area and pore volume with bimodal pore size distribution which indicates that the material was mesoporous. Sorption kinetics for Cd(II) and Pb(II) ions proceeded through a two-stage kinetic profile-initial quick uptake occurring within 30 min followed by a gradual removal of the two metal ions until 180 min with optimum uptake (qe,exp) of 17.23 mg g1 and 16.84 mg g1 for Cd(II) and Pb(II) ions respectively. Modelling of sorption kinetics indicates that the pseudo first order (PFO) model described the sorption of Pb(II) ion better than Cd(II), while the reverse was observed with respect to the pseudo second order (PSO) model. Intraparticle diffusion modelling showed that intraparticle diffusion may not be the only mechanism that influenced the rate of ions uptake. Isotherm modelling was carried out and the results indicated that the Langmuir and Freundlich models described the uptake of Pb(II) ion better than Cd(II) ion. A comparison of the two models indicated that the Langmuir isotherm is the better isotherm for the description of Cd(II) and Pb(II)ions sorption by the adsorbent. The maximum loading capacity (qmax) obtained from the Langmuir isotherm was 27.3 mg g1 and 20.3 mg g1 for Cd(II) and Pb(II) ions respectively.

KW - Adsorption

KW - Commercial activated carbon

KW - Adsorbent

KW - Lead

KW - Cadmium

KW - Heavy metals

KW - Kinetics

KW - Isotherm

U2 - 10.1016/j.jece.2016.12.043

DO - 10.1016/j.jece.2016.12.043

M3 - Journal article

VL - 5

SP - 679

EP - 698

JO - Journal of Environmental Chemical Engineering

JF - Journal of Environmental Chemical Engineering

SN - 2213-2929

IS - 1

ER -