Evaluation of Adsorption Capacity of Low Cost Adsorbent for the Removal of Congo Red Dye from Aqueous Solution

Vigna unguiculata seed husk powder has been investigated as low cost adsorbent for the removal of hazardous chemicals like Congo Red (CR) dye from aqueous solution. Various parameters such as effect of contact time, initial CR dye concentration, adsorbent dose, effect of pH, zero-point pH were studi...

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Authors: Jirekar, Dattatraya B., Ubale, Milind, Farooqui, Mazahar
Format: article
Status:Published version
Publication Date:2016
Country:Brasil
Institution:Universidade Federal de Mato Grosso do Sul (UFMS)
Repository:Orbital - The Electronic Journal of Chemistry (Campo Grande)
Language:English
OAI Identifier:oai:periodicos.ufms.br:article/16700
Online Access:https://periodicos.ufms.br/index.php/orbital/article/view/16700
Access Level:Open access
Keyword:congo red
kinetics
Langmuir-Freundlich isotherms
thermodynamic parameters
Vigna unguiculata
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oai_identifier_str oai:periodicos.ufms.br:article/16700
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spelling Evaluation of Adsorption Capacity of Low Cost Adsorbent for the Removal of Congo Red Dye from Aqueous Solutioncongo redkineticsLangmuir-Freundlich isothermsthermodynamic parametersVigna unguiculataVigna unguiculata seed husk powder has been investigated as low cost adsorbent for the removal of hazardous chemicals like Congo Red (CR) dye from aqueous solution. Various parameters such as effect of contact time, initial CR dye concentration, adsorbent dose, effect of pH, zero-point pH were studied. Batch adsorption technique was employed to optimize the process parameter. The result indicated that, the percentage adsorption of Congo Red increased with increase in contact time, dose of adsorbent and initial concentration of Congo Red and decreased with addition of salt. The adsorption of Congo Red was 78% at the optimum pH of 6. Adsorption equilibrium was found to be reached in 24 h for 5 to 25 g/50 mL Congo red concentrations. The Langmuir and Freundlich isotherm models were found to provide an excellent fitting of the adsorption data.  The adsorption of CR follows Second order rate kinetics. Thermodynamic parameter (δGo) showed that it was an exothermic process. This adsorbent was found to be effective and economically attractive. DOI: http://dx.doi.org/10.17807/orbital.v8i5.834Instituto de Química, Universidade Federal de Mato Grosso do Sul2016-09-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPeer-reviewed Articleapplication/pdfhttps://periodicos.ufms.br/index.php/orbital/article/view/16700Orbital: The Electronic Journal of Chemistry; Orbital - Vol. 8 No. 5 - July - September 2016; 282-287Orbital: The Electronic Journal of Chemistry; Orbital - Vol. 8 No. 5 - July - September 2016; 282-2871984-6428reponame:Orbital - The Electronic Journal of Chemistry (Campo Grande)instname:Universidade Federal de Mato Grosso do Sul (UFMS)instacron:UFMSenghttps://periodicos.ufms.br/index.php/orbital/article/view/16700/11248Copyright (c) 2016 Orbital: The Electronic Journal of Chemistryhttps://creativecommons.org/licenses/by-nc-nd/4.0info:eu-repo/semantics/openAccessJirekar, Dattatraya B.Ubale, MilindFarooqui, Mazahar2023-01-20T11:00:30Zoai:periodicos.ufms.br:article/16700Revistahttps://periodicos.ufms.br/index.php/orbital/indexPUBhttps://periodicos.ufms.br/index.php/orbital/oaieditor.orbital@ufms.br || marcos.amaral@ufms.br1984-64281984-6428opendoar:2023-01-20T11:00:30Orbital - The Electronic Journal of Chemistry (Campo Grande) - Universidade Federal de Mato Grosso do Sul (UFMS)false
dc.title.none.fl_str_mv Evaluation of Adsorption Capacity of Low Cost Adsorbent for the Removal of Congo Red Dye from Aqueous Solution
title Evaluation of Adsorption Capacity of Low Cost Adsorbent for the Removal of Congo Red Dye from Aqueous Solution
spellingShingle Evaluation of Adsorption Capacity of Low Cost Adsorbent for the Removal of Congo Red Dye from Aqueous Solution
Jirekar, Dattatraya B.
congo red
kinetics
Langmuir-Freundlich isotherms
thermodynamic parameters
Vigna unguiculata
title_short Evaluation of Adsorption Capacity of Low Cost Adsorbent for the Removal of Congo Red Dye from Aqueous Solution
title_full Evaluation of Adsorption Capacity of Low Cost Adsorbent for the Removal of Congo Red Dye from Aqueous Solution
title_fullStr Evaluation of Adsorption Capacity of Low Cost Adsorbent for the Removal of Congo Red Dye from Aqueous Solution
title_full_unstemmed Evaluation of Adsorption Capacity of Low Cost Adsorbent for the Removal of Congo Red Dye from Aqueous Solution
title_sort Evaluation of Adsorption Capacity of Low Cost Adsorbent for the Removal of Congo Red Dye from Aqueous Solution
dc.creator.none.fl_str_mv Jirekar, Dattatraya B.
Ubale, Milind
Farooqui, Mazahar
author Jirekar, Dattatraya B.
author_facet Jirekar, Dattatraya B.
Ubale, Milind
Farooqui, Mazahar
author_role author
author2 Ubale, Milind
Farooqui, Mazahar
author2_role author
author
dc.subject.por.fl_str_mv congo red
kinetics
Langmuir-Freundlich isotherms
thermodynamic parameters
Vigna unguiculata
topic congo red
kinetics
Langmuir-Freundlich isotherms
thermodynamic parameters
Vigna unguiculata
description Vigna unguiculata seed husk powder has been investigated as low cost adsorbent for the removal of hazardous chemicals like Congo Red (CR) dye from aqueous solution. Various parameters such as effect of contact time, initial CR dye concentration, adsorbent dose, effect of pH, zero-point pH were studied. Batch adsorption technique was employed to optimize the process parameter. The result indicated that, the percentage adsorption of Congo Red increased with increase in contact time, dose of adsorbent and initial concentration of Congo Red and decreased with addition of salt. The adsorption of Congo Red was 78% at the optimum pH of 6. Adsorption equilibrium was found to be reached in 24 h for 5 to 25 g/50 mL Congo red concentrations. The Langmuir and Freundlich isotherm models were found to provide an excellent fitting of the adsorption data.  The adsorption of CR follows Second order rate kinetics. Thermodynamic parameter (δGo) showed that it was an exothermic process. This adsorbent was found to be effective and economically attractive. DOI: http://dx.doi.org/10.17807/orbital.v8i5.834
publishDate 2016
dc.date.none.fl_str_mv 2016-09-17
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.ufms.br/index.php/orbital/article/view/16700
url https://periodicos.ufms.br/index.php/orbital/article/view/16700
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://periodicos.ufms.br/index.php/orbital/article/view/16700/11248
dc.rights.driver.fl_str_mv Copyright (c) 2016 Orbital: The Electronic Journal of Chemistry
https://creativecommons.org/licenses/by-nc-nd/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2016 Orbital: The Electronic Journal of Chemistry
https://creativecommons.org/licenses/by-nc-nd/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Instituto de Química, Universidade Federal de Mato Grosso do Sul
publisher.none.fl_str_mv Instituto de Química, Universidade Federal de Mato Grosso do Sul
dc.source.none.fl_str_mv Orbital: The Electronic Journal of Chemistry; Orbital - Vol. 8 No. 5 - July - September 2016; 282-287
Orbital: The Electronic Journal of Chemistry; Orbital - Vol. 8 No. 5 - July - September 2016; 282-287
1984-6428
reponame:Orbital - The Electronic Journal of Chemistry (Campo Grande)
instname:Universidade Federal de Mato Grosso do Sul (UFMS)
instacron:UFMS
instname_str Universidade Federal de Mato Grosso do Sul (UFMS)
instacron_str UFMS
institution UFMS
reponame_str Orbital - The Electronic Journal of Chemistry (Campo Grande)
collection Orbital - The Electronic Journal of Chemistry (Campo Grande)
repository.name.fl_str_mv Orbital - The Electronic Journal of Chemistry (Campo Grande) - Universidade Federal de Mato Grosso do Sul (UFMS)
repository.mail.fl_str_mv editor.orbital@ufms.br || marcos.amaral@ufms.br
_version_ 1853664387399680000
score 15,301603

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