Removal of Methylene Blue from Aqueous Solution by Activated Carbon Prepared from Pea Shells (Pisum sativum)

An activated carbon was prepared from pea shells and used for the removal of methylene blue (MB) from aqueous solutions. The influence of various factors such as adsorbent concentration, initial dye concentration, temperature, contact time, pH, and surfactant was studied. The experimental data were...

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Main Authors: Ünal Geçgel, Gülce Özcan, Gizem Çağla Gürpınar
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:Journal of Chemistry
Online Access:http://dx.doi.org/10.1155/2013/614083
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author Ünal Geçgel
Gülce Özcan
Gizem Çağla Gürpınar
author_facet Ünal Geçgel
Gülce Özcan
Gizem Çağla Gürpınar
author_sort Ünal Geçgel
collection DOAJ
description An activated carbon was prepared from pea shells and used for the removal of methylene blue (MB) from aqueous solutions. The influence of various factors such as adsorbent concentration, initial dye concentration, temperature, contact time, pH, and surfactant was studied. The experimental data were analyzed by the Langmuir and Freundlich models of adsorption. The adsorption isotherm was found to follow the Langmuir model. The monolayer sorption capacity of activated carbon prepared from pea shell for MB was found to be 246.91 mg g−1 at 25 ∘C. Two simplified kinetic models including pseudo-first-order and pseudo-second-order equation were selected to follow the adsorption processes. Kinetic studies showed that the adsorption followed pseudo-second-order kinetic model. Various thermodynamic parameters such as , , and were evaluated. The results in this study indicated that activated carbon prepared from pea shell could be employed as an adsorbent for the removal of MB from aqueous solutions.
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institution DOAJ
issn 2090-9063
2090-9071
language English
publishDate 2013-01-01
publisher Wiley
record_format Article
series Journal of Chemistry
spelling doaj-art-bfc8c8647d134d438090b482b14276412025-08-20T03:22:41ZengWileyJournal of Chemistry2090-90632090-90712013-01-01201310.1155/2013/614083614083Removal of Methylene Blue from Aqueous Solution by Activated Carbon Prepared from Pea Shells (Pisum sativum)Ünal Geçgel0Gülce Özcan1Gizem Çağla Gürpınar2Arda Vocational College, Trakya University, 22030 Edirne, TurkeyArda Vocational College, Trakya University, 22030 Edirne, TurkeyArda Vocational College, Trakya University, 22030 Edirne, TurkeyAn activated carbon was prepared from pea shells and used for the removal of methylene blue (MB) from aqueous solutions. The influence of various factors such as adsorbent concentration, initial dye concentration, temperature, contact time, pH, and surfactant was studied. The experimental data were analyzed by the Langmuir and Freundlich models of adsorption. The adsorption isotherm was found to follow the Langmuir model. The monolayer sorption capacity of activated carbon prepared from pea shell for MB was found to be 246.91 mg g−1 at 25 ∘C. Two simplified kinetic models including pseudo-first-order and pseudo-second-order equation were selected to follow the adsorption processes. Kinetic studies showed that the adsorption followed pseudo-second-order kinetic model. Various thermodynamic parameters such as , , and were evaluated. The results in this study indicated that activated carbon prepared from pea shell could be employed as an adsorbent for the removal of MB from aqueous solutions.http://dx.doi.org/10.1155/2013/614083
spellingShingle Ünal Geçgel
Gülce Özcan
Gizem Çağla Gürpınar
Removal of Methylene Blue from Aqueous Solution by Activated Carbon Prepared from Pea Shells (Pisum sativum)
Journal of Chemistry
title Removal of Methylene Blue from Aqueous Solution by Activated Carbon Prepared from Pea Shells (Pisum sativum)
title_full Removal of Methylene Blue from Aqueous Solution by Activated Carbon Prepared from Pea Shells (Pisum sativum)
title_fullStr Removal of Methylene Blue from Aqueous Solution by Activated Carbon Prepared from Pea Shells (Pisum sativum)
title_full_unstemmed Removal of Methylene Blue from Aqueous Solution by Activated Carbon Prepared from Pea Shells (Pisum sativum)
title_short Removal of Methylene Blue from Aqueous Solution by Activated Carbon Prepared from Pea Shells (Pisum sativum)
title_sort removal of methylene blue from aqueous solution by activated carbon prepared from pea shells pisum sativum
url http://dx.doi.org/10.1155/2013/614083
work_keys_str_mv AT unalgecgel removalofmethylenebluefromaqueoussolutionbyactivatedcarbonpreparedfrompeashellspisumsativum
AT gulceozcan removalofmethylenebluefromaqueoussolutionbyactivatedcarbonpreparedfrompeashellspisumsativum
AT gizemcaglagurpınar removalofmethylenebluefromaqueoussolutionbyactivatedcarbonpreparedfrompeashellspisumsativum