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Improved Adsorption of the Toxic Herbicide Diuron Using Activated Carbon Obtained from Residual Cassava Biomass (Manihot esculenta)

The production and consumption of cassava (Manihot esculenta) occur in several places worldwide, producing large volumes of waste, mostly in the form of bark. This study sought to bring a new purpose to this biomass through producing activated carbon to use as an adsorbent to remove the herbicide Di...

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Autores principales: Georgin, Jordana, Pinto, Diana, Franco, Dison S. P., Schadeck Netto, Matias, Lazarotto, Joseane S., Allasia, Daniel G., Tassi, Rutineia, Silva, Luis F. O., Dotto, Guilherme L.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9656765/
https://www.ncbi.nlm.nih.gov/pubmed/36364399
http://dx.doi.org/10.3390/molecules27217574
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author Georgin, Jordana
Pinto, Diana
Franco, Dison S. P.
Schadeck Netto, Matias
Lazarotto, Joseane S.
Allasia, Daniel G.
Tassi, Rutineia
Silva, Luis F. O.
Dotto, Guilherme L.
author_facet Georgin, Jordana
Pinto, Diana
Franco, Dison S. P.
Schadeck Netto, Matias
Lazarotto, Joseane S.
Allasia, Daniel G.
Tassi, Rutineia
Silva, Luis F. O.
Dotto, Guilherme L.
author_sort Georgin, Jordana
collection PubMed
description The production and consumption of cassava (Manihot esculenta) occur in several places worldwide, producing large volumes of waste, mostly in the form of bark. This study sought to bring a new purpose to this biomass through producing activated carbon to use as an adsorbent to remove the herbicide Diuron from water. It was observed that the carbon contains the functional groups of methyl, carbonyl, and hydroxyl in a strongly amorphous structure. The activated carbon had a surface area of 613.7 m(2) g(−1), a pore volume of 0.337 cm(3) g(−1), and a pore diameter of 1.18 nm. The Freundlich model was found to best describe the experimental data. It was observed that an increase in temperature favored adsorption, reaching a maximum experimental capacity of 222 mg g(−1) at 328 K. The thermodynamic parameters showed that the adsorption was spontaneous, favorable, and endothermic. The enthalpy of adsorption magnitude was consistent with physical adsorption. Equilibrium was attained within 120 min. The linear driving force (LDF) model provided a strong statistical match to the kinetic curves. Diffusivity (D(s)) and the model coefficient (K(LDF)) both increased with a rise in herbicide concentration. The adsorbent removed up to 68% of pollutants in a simulated effluent containing different herbicides. Activated carbon with zinc chloride (ZnCl2), produced from leftover cassava husks, was shown to be a viable alternative as an adsorbent for the treatment of effluents containing not only the herbicide Diuron but also a mixture of other herbicides.
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spelling pubmed-96567652022-11-15 Improved Adsorption of the Toxic Herbicide Diuron Using Activated Carbon Obtained from Residual Cassava Biomass (Manihot esculenta) Georgin, Jordana Pinto, Diana Franco, Dison S. P. Schadeck Netto, Matias Lazarotto, Joseane S. Allasia, Daniel G. Tassi, Rutineia Silva, Luis F. O. Dotto, Guilherme L. Molecules Article The production and consumption of cassava (Manihot esculenta) occur in several places worldwide, producing large volumes of waste, mostly in the form of bark. This study sought to bring a new purpose to this biomass through producing activated carbon to use as an adsorbent to remove the herbicide Diuron from water. It was observed that the carbon contains the functional groups of methyl, carbonyl, and hydroxyl in a strongly amorphous structure. The activated carbon had a surface area of 613.7 m(2) g(−1), a pore volume of 0.337 cm(3) g(−1), and a pore diameter of 1.18 nm. The Freundlich model was found to best describe the experimental data. It was observed that an increase in temperature favored adsorption, reaching a maximum experimental capacity of 222 mg g(−1) at 328 K. The thermodynamic parameters showed that the adsorption was spontaneous, favorable, and endothermic. The enthalpy of adsorption magnitude was consistent with physical adsorption. Equilibrium was attained within 120 min. The linear driving force (LDF) model provided a strong statistical match to the kinetic curves. Diffusivity (D(s)) and the model coefficient (K(LDF)) both increased with a rise in herbicide concentration. The adsorbent removed up to 68% of pollutants in a simulated effluent containing different herbicides. Activated carbon with zinc chloride (ZnCl2), produced from leftover cassava husks, was shown to be a viable alternative as an adsorbent for the treatment of effluents containing not only the herbicide Diuron but also a mixture of other herbicides. MDPI 2022-11-04 /pmc/articles/PMC9656765/ /pubmed/36364399 http://dx.doi.org/10.3390/molecules27217574 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Georgin, Jordana
Pinto, Diana
Franco, Dison S. P.
Schadeck Netto, Matias
Lazarotto, Joseane S.
Allasia, Daniel G.
Tassi, Rutineia
Silva, Luis F. O.
Dotto, Guilherme L.
Improved Adsorption of the Toxic Herbicide Diuron Using Activated Carbon Obtained from Residual Cassava Biomass (Manihot esculenta)
title Improved Adsorption of the Toxic Herbicide Diuron Using Activated Carbon Obtained from Residual Cassava Biomass (Manihot esculenta)
title_full Improved Adsorption of the Toxic Herbicide Diuron Using Activated Carbon Obtained from Residual Cassava Biomass (Manihot esculenta)
title_fullStr Improved Adsorption of the Toxic Herbicide Diuron Using Activated Carbon Obtained from Residual Cassava Biomass (Manihot esculenta)
title_full_unstemmed Improved Adsorption of the Toxic Herbicide Diuron Using Activated Carbon Obtained from Residual Cassava Biomass (Manihot esculenta)
title_short Improved Adsorption of the Toxic Herbicide Diuron Using Activated Carbon Obtained from Residual Cassava Biomass (Manihot esculenta)
title_sort improved adsorption of the toxic herbicide diuron using activated carbon obtained from residual cassava biomass (manihot esculenta)
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9656765/
https://www.ncbi.nlm.nih.gov/pubmed/36364399
http://dx.doi.org/10.3390/molecules27217574
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