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Sequestration of Pb(II) from aqueous environment by palm kernel shell activated carbon: isotherm and kinetic analyses

In this work, activated carbons were produced by the thermochemical treatment of palm kernel shells with different activation time. The developed products (activated carbon samples) were described by their surface area, porosity, and applied for lead(II) ions separation from liquid phase. By prolong...

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Main Authors: Isokise, Ekemini Monday, Abdullah, Abdul Halim, Tan, Yen Ping
Format: Article
Language:English
Published: Universiti Putra Malaysia Press 2021
Online Access:http://psasir.upm.edu.my/id/eprint/89347/1/PB.pdf
http://psasir.upm.edu.my/id/eprint/89347/
http://www.pertanika.upm.edu.my/resources/files/Pertanika%20PAPERS/JST%20Vol.%2029%20(3)%20Jul.%202021/10%20JST-2374-2020.pdf
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spelling my.upm.eprints.893472021-09-20T23:02:43Z http://psasir.upm.edu.my/id/eprint/89347/ Sequestration of Pb(II) from aqueous environment by palm kernel shell activated carbon: isotherm and kinetic analyses Isokise, Ekemini Monday Abdullah, Abdul Halim Tan, Yen Ping In this work, activated carbons were produced by the thermochemical treatment of palm kernel shells with different activation time. The developed products (activated carbon samples) were described by their surface area, porosity, and applied for lead(II) ions separation from liquid phase. By prolonging the activation time beyond 2h, some of the micropores collapsed to form mesopores without causing a significant transformation in the surface area. The influences of solution pH, mass of biosorbents, concentration of Pb(II) ions, and temperature on the entrapment of lead(II) ions explored. Based on experimental outcome, the best-suited condition for the Pb(II) uptake was 0.13 g AC-4, 250 mg L-1 concentration, and pH 4. The Pb(II) entrapment process is thermodynamically exothermic and spontaneous. The adsorption data fit the Langmuir monolayer adsorption model, with 222 mg g-1 as maximum sorption capacity, and the Ho-second-order kinetics model suitably described the process rate. Universiti Putra Malaysia Press 2021 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/89347/1/PB.pdf Isokise, Ekemini Monday and Abdullah, Abdul Halim and Tan, Yen Ping (2021) Sequestration of Pb(II) from aqueous environment by palm kernel shell activated carbon: isotherm and kinetic analyses. Pertanika Journal of Science & Technology, 29 (3). pp. 1517-1534. ISSN 0128-7680; ESSN: 2231-8526 http://www.pertanika.upm.edu.my/resources/files/Pertanika%20PAPERS/JST%20Vol.%2029%20(3)%20Jul.%202021/10%20JST-2374-2020.pdf 10.47836/pjst.29.3.17
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description In this work, activated carbons were produced by the thermochemical treatment of palm kernel shells with different activation time. The developed products (activated carbon samples) were described by their surface area, porosity, and applied for lead(II) ions separation from liquid phase. By prolonging the activation time beyond 2h, some of the micropores collapsed to form mesopores without causing a significant transformation in the surface area. The influences of solution pH, mass of biosorbents, concentration of Pb(II) ions, and temperature on the entrapment of lead(II) ions explored. Based on experimental outcome, the best-suited condition for the Pb(II) uptake was 0.13 g AC-4, 250 mg L-1 concentration, and pH 4. The Pb(II) entrapment process is thermodynamically exothermic and spontaneous. The adsorption data fit the Langmuir monolayer adsorption model, with 222 mg g-1 as maximum sorption capacity, and the Ho-second-order kinetics model suitably described the process rate.
format Article
author Isokise, Ekemini Monday
Abdullah, Abdul Halim
Tan, Yen Ping
spellingShingle Isokise, Ekemini Monday
Abdullah, Abdul Halim
Tan, Yen Ping
Sequestration of Pb(II) from aqueous environment by palm kernel shell activated carbon: isotherm and kinetic analyses
author_facet Isokise, Ekemini Monday
Abdullah, Abdul Halim
Tan, Yen Ping
author_sort Isokise, Ekemini Monday
title Sequestration of Pb(II) from aqueous environment by palm kernel shell activated carbon: isotherm and kinetic analyses
title_short Sequestration of Pb(II) from aqueous environment by palm kernel shell activated carbon: isotherm and kinetic analyses
title_full Sequestration of Pb(II) from aqueous environment by palm kernel shell activated carbon: isotherm and kinetic analyses
title_fullStr Sequestration of Pb(II) from aqueous environment by palm kernel shell activated carbon: isotherm and kinetic analyses
title_full_unstemmed Sequestration of Pb(II) from aqueous environment by palm kernel shell activated carbon: isotherm and kinetic analyses
title_sort sequestration of pb(ii) from aqueous environment by palm kernel shell activated carbon: isotherm and kinetic analyses
publisher Universiti Putra Malaysia Press
publishDate 2021
url http://psasir.upm.edu.my/id/eprint/89347/1/PB.pdf
http://psasir.upm.edu.my/id/eprint/89347/
http://www.pertanika.upm.edu.my/resources/files/Pertanika%20PAPERS/JST%20Vol.%2029%20(3)%20Jul.%202021/10%20JST-2374-2020.pdf
_version_ 1712286762200465408
score 13.211869

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