CO(2) Adsorption on Activated Carbon Honeycomb-Monoliths: A Comparison of Langmuir and Tóth Models

Activated carbon honeycomb-monoliths with different textural properties were prepared by chemical activation of African palm shells with H(3)PO(4), ZnCl(2) and CaCl(2) aqueous solutions of various concentrations. The adsorbents obtained were characterized by N(2) adsorption at 77 K, and their carbon...

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Autores principales: Vargas, Diana P., Giraldo, Liliana, Moreno-Piraján, Juan C.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2012
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3430241/
https://www.ncbi.nlm.nih.gov/pubmed/22942710
http://dx.doi.org/10.3390/ijms13078388
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author Vargas, Diana P.
Giraldo, Liliana
Moreno-Piraján, Juan C.
author_facet Vargas, Diana P.
Giraldo, Liliana
Moreno-Piraján, Juan C.
author_sort Vargas, Diana P.
collection PubMed
description Activated carbon honeycomb-monoliths with different textural properties were prepared by chemical activation of African palm shells with H(3)PO(4), ZnCl(2) and CaCl(2) aqueous solutions of various concentrations. The adsorbents obtained were characterized by N(2) adsorption at 77 K, and their carbon dioxide adsorption capacities were measured at 273 K and 1 Bar in volumetric adsorption equipment. The experimental adsorption isotherms were fitted to Langmuir and Tóth models, and a better fit was observed to Tóth equation with a correlation coefficient of 0.999. The maximum experimental values for adsorption capacity at the highest pressure (2.627–5.756 mmol·g(−1)) are between the calculated data in the two models.
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spelling pubmed-34302412012-08-31 CO(2) Adsorption on Activated Carbon Honeycomb-Monoliths: A Comparison of Langmuir and Tóth Models Vargas, Diana P. Giraldo, Liliana Moreno-Piraján, Juan C. Int J Mol Sci Article Activated carbon honeycomb-monoliths with different textural properties were prepared by chemical activation of African palm shells with H(3)PO(4), ZnCl(2) and CaCl(2) aqueous solutions of various concentrations. The adsorbents obtained were characterized by N(2) adsorption at 77 K, and their carbon dioxide adsorption capacities were measured at 273 K and 1 Bar in volumetric adsorption equipment. The experimental adsorption isotherms were fitted to Langmuir and Tóth models, and a better fit was observed to Tóth equation with a correlation coefficient of 0.999. The maximum experimental values for adsorption capacity at the highest pressure (2.627–5.756 mmol·g(−1)) are between the calculated data in the two models. Molecular Diversity Preservation International (MDPI) 2012-07-05 /pmc/articles/PMC3430241/ /pubmed/22942710 http://dx.doi.org/10.3390/ijms13078388 Text en © 2012 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland. http://creativecommons.org/licenses/by/3.0 This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Vargas, Diana P.
Giraldo, Liliana
Moreno-Piraján, Juan C.
CO(2) Adsorption on Activated Carbon Honeycomb-Monoliths: A Comparison of Langmuir and Tóth Models
title CO(2) Adsorption on Activated Carbon Honeycomb-Monoliths: A Comparison of Langmuir and Tóth Models
title_full CO(2) Adsorption on Activated Carbon Honeycomb-Monoliths: A Comparison of Langmuir and Tóth Models
title_fullStr CO(2) Adsorption on Activated Carbon Honeycomb-Monoliths: A Comparison of Langmuir and Tóth Models
title_full_unstemmed CO(2) Adsorption on Activated Carbon Honeycomb-Monoliths: A Comparison of Langmuir and Tóth Models
title_short CO(2) Adsorption on Activated Carbon Honeycomb-Monoliths: A Comparison of Langmuir and Tóth Models
title_sort co(2) adsorption on activated carbon honeycomb-monoliths: a comparison of langmuir and tóth models
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3430241/
https://www.ncbi.nlm.nih.gov/pubmed/22942710
http://dx.doi.org/10.3390/ijms13078388
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