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Physicochemical Parameters of the Methylparaben Adsorption from Aqueous Solution Onto Activated Carbon and Their Relationship with the Surface Chemistry
[Image: see text] The methylparaben adsorption from aqueous solution onto activated carbon is a relevant topic because of the toxicity of this compound for human and environmental health. The physicochemical parameters allow us to evaluate the performance of the adsorption and the relationship betwe...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2021
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8028009/ https://www.ncbi.nlm.nih.gov/pubmed/33842751 http://dx.doi.org/10.1021/acsomega.0c05368 |
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author | Bernal, Valentina Giraldo, Liliana Moreno-Piraján, Juan C. |
author_facet | Bernal, Valentina Giraldo, Liliana Moreno-Piraján, Juan C. |
author_sort | Bernal, Valentina |
collection | PubMed |
description | [Image: see text] The methylparaben adsorption from aqueous solution onto activated carbon is a relevant topic because of the toxicity of this compound for human and environmental health. The physicochemical parameters allow us to evaluate the performance of the adsorption and the relationship between the surface chemistry and the adsorbed amount of methylparaben. The effect of the solution chemistry on the adsorption was also evaluated. In this work, the methylparaben adsorption on three activated carbons with different physicochemical properties, specifically different contents of oxygenated groups and total basicity, is presented. Kinetic, equilibrium, and calorimetry tests were conducted. The maximum adsorbed amount of methylparaben was achieved on an activated carbon with basic characteristics, Q(max) = 1.64 mmol g(–1); in the same activated carbon, the initial rate was 0.20 mmol g(–1) h(–1), and the value determined for the interaction enthalpy was −12.6 × 10(–20) J molecules(–1), and the Gibbs energy change was close to −14.96 kJ mol(–1). |
format | Online Article Text |
id | pubmed-8028009 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-80280092021-04-09 Physicochemical Parameters of the Methylparaben Adsorption from Aqueous Solution Onto Activated Carbon and Their Relationship with the Surface Chemistry Bernal, Valentina Giraldo, Liliana Moreno-Piraján, Juan C. ACS Omega [Image: see text] The methylparaben adsorption from aqueous solution onto activated carbon is a relevant topic because of the toxicity of this compound for human and environmental health. The physicochemical parameters allow us to evaluate the performance of the adsorption and the relationship between the surface chemistry and the adsorbed amount of methylparaben. The effect of the solution chemistry on the adsorption was also evaluated. In this work, the methylparaben adsorption on three activated carbons with different physicochemical properties, specifically different contents of oxygenated groups and total basicity, is presented. Kinetic, equilibrium, and calorimetry tests were conducted. The maximum adsorbed amount of methylparaben was achieved on an activated carbon with basic characteristics, Q(max) = 1.64 mmol g(–1); in the same activated carbon, the initial rate was 0.20 mmol g(–1) h(–1), and the value determined for the interaction enthalpy was −12.6 × 10(–20) J molecules(–1), and the Gibbs energy change was close to −14.96 kJ mol(–1). American Chemical Society 2021-03-25 /pmc/articles/PMC8028009/ /pubmed/33842751 http://dx.doi.org/10.1021/acsomega.0c05368 Text en © 2021 The Authors. Published by American Chemical Society Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Bernal, Valentina Giraldo, Liliana Moreno-Piraján, Juan C. Physicochemical Parameters of the Methylparaben Adsorption from Aqueous Solution Onto Activated Carbon and Their Relationship with the Surface Chemistry |
title | Physicochemical Parameters of the Methylparaben Adsorption
from Aqueous Solution Onto Activated Carbon and Their Relationship
with the Surface Chemistry |
title_full | Physicochemical Parameters of the Methylparaben Adsorption
from Aqueous Solution Onto Activated Carbon and Their Relationship
with the Surface Chemistry |
title_fullStr | Physicochemical Parameters of the Methylparaben Adsorption
from Aqueous Solution Onto Activated Carbon and Their Relationship
with the Surface Chemistry |
title_full_unstemmed | Physicochemical Parameters of the Methylparaben Adsorption
from Aqueous Solution Onto Activated Carbon and Their Relationship
with the Surface Chemistry |
title_short | Physicochemical Parameters of the Methylparaben Adsorption
from Aqueous Solution Onto Activated Carbon and Their Relationship
with the Surface Chemistry |
title_sort | physicochemical parameters of the methylparaben adsorption
from aqueous solution onto activated carbon and their relationship
with the surface chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8028009/ https://www.ncbi.nlm.nih.gov/pubmed/33842751 http://dx.doi.org/10.1021/acsomega.0c05368 |
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