Phosphoric acid activation of agricultural residues and bagasse from sugar cane: Influence of the experimental conditions on adsorption characteristics of activated carbons

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Activated carbons from two different types of sugar cane wastes, agricultural residues and bagasse, were prepared by phosphoric acid activation varying the carbonization temperature (300-600 °C), the weight ratio of phosphoric acid to precursor (R = 1-2.5), and carbonization time (0-3 h). Surface pr...

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Autores principales: Castro, J.B., Bonelli, P.R., Cerrella, E.G., Cukierman, A.L.
Formato: JOUR
Materias:
Adsorption
Agricultural wastes
Bagasse
Carbonization
Chemical activation
Impregnation
Phosphoric acid
Porosity
Sugar cane
Surface properties
Thermal effects
Melanoidin
Methylene blue
Pore volume
Surface area
Activated carbon
activated carbon
bagasse
phosphoric acid
adsorption
Argentina
article
effluent
fermentation
sugar industry
surface property
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_08885885_v39_n11_p4166_Castro
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_08885885_v39_n11_p4166_Castro
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spelling todo:paper_08885885_v39_n11_p4166_Castro2023-10-03T15:41:03Z Phosphoric acid activation of agricultural residues and bagasse from sugar cane: Influence of the experimental conditions on adsorption characteristics of activated carbons Castro, J.B. Bonelli, P.R. Cerrella, E.G. Cukierman, A.L. Adsorption Agricultural wastes Bagasse Carbonization Chemical activation Impregnation Phosphoric acid Porosity Sugar cane Surface properties Thermal effects Melanoidin Methylene blue Pore volume Surface area Activated carbon activated carbon bagasse phosphoric acid adsorption Argentina article effluent fermentation sugar industry surface property Activated carbons from two different types of sugar cane wastes, agricultural residues and bagasse, were prepared by phosphoric acid activation varying the carbonization temperature (300-600 °C), the weight ratio of phosphoric acid to precursor (R = 1-2.5), and carbonization time (0-3 h). Surface properties of the resulting carbons were markedly dependent on the precursor and a combined effect of the conditions employed. Bagasse carbons showed higher surface area and pore volume than those from agricultural residues. Maximum surface areas of around 1100 and 780 m2/g were respectively attained. Temperature above 500 °C, impregnation ratio higher than 2, or prolonged carbonization beyond 1 h led to reduction in porosity development. Selected carbons from both wastes with relatively large mean pore radius showed good ability to decolorize a diluted solution of synthetic melanoidin, used as a model of molasses wastewater. Iodine number between 608 and 746 and methylene blue uptake of 213-261 (mg/g) were determined for the selected samples. Activated carbons from two different types of sugar cane wastes, agricultural residues and bagasse, were prepared by phosphoric acid activation varying the carbonization temperature (300-600°C), the weight ratio of phosphoric acid to precursor (R = 1-2.5), and carbonization time (0-3 h). Surface properties of the resulting carbons were markedly dependent on the precursor and a combined effect of the conditions employed. Bagasse carbons showed higher surface area and pore volume than those from agricultural residues. Maximum surface areas of around 1100 and 780 m2/g were respectively attained. Temperature above 500°C, impregnation ratio higher than 2, or prolonged carbonization beyond 1 h led to reduction in porosity development. Selected carbons from both wastes with relatively large mean pore radius showed good ability to decolorize a diluted solution of synthetic melanoidin, used as a model of molasses wastewater. Iodine number between 608 and 746 and methylene blue uptake of 213-261 (mg/g) were determined for the selected samples. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_08885885_v39_n11_p4166_Castro
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Adsorption
Agricultural wastes
Bagasse
Carbonization
Chemical activation
Impregnation
Phosphoric acid
Porosity
Sugar cane
Surface properties
Thermal effects
Melanoidin
Methylene blue
Pore volume
Surface area
Activated carbon
activated carbon
bagasse
phosphoric acid
adsorption
Argentina
article
effluent
fermentation
sugar industry
surface property
spellingShingle Adsorption
Agricultural wastes
Bagasse
Carbonization
Chemical activation
Impregnation
Phosphoric acid
Porosity
Sugar cane
Surface properties
Thermal effects
Melanoidin
Methylene blue
Pore volume
Surface area
Activated carbon
activated carbon
bagasse
phosphoric acid
adsorption
Argentina
article
effluent
fermentation
sugar industry
surface property
Castro, J.B.
Bonelli, P.R.
Cerrella, E.G.
Cukierman, A.L.
Phosphoric acid activation of agricultural residues and bagasse from sugar cane: Influence of the experimental conditions on adsorption characteristics of activated carbons
topic_facet Adsorption
Agricultural wastes
Bagasse
Carbonization
Chemical activation
Impregnation
Phosphoric acid
Porosity
Sugar cane
Surface properties
Thermal effects
Melanoidin
Methylene blue
Pore volume
Surface area
Activated carbon
activated carbon
bagasse
phosphoric acid
adsorption
Argentina
article
effluent
fermentation
sugar industry
surface property
description Activated carbons from two different types of sugar cane wastes, agricultural residues and bagasse, were prepared by phosphoric acid activation varying the carbonization temperature (300-600 °C), the weight ratio of phosphoric acid to precursor (R = 1-2.5), and carbonization time (0-3 h). Surface properties of the resulting carbons were markedly dependent on the precursor and a combined effect of the conditions employed. Bagasse carbons showed higher surface area and pore volume than those from agricultural residues. Maximum surface areas of around 1100 and 780 m2/g were respectively attained. Temperature above 500 °C, impregnation ratio higher than 2, or prolonged carbonization beyond 1 h led to reduction in porosity development. Selected carbons from both wastes with relatively large mean pore radius showed good ability to decolorize a diluted solution of synthetic melanoidin, used as a model of molasses wastewater. Iodine number between 608 and 746 and methylene blue uptake of 213-261 (mg/g) were determined for the selected samples. Activated carbons from two different types of sugar cane wastes, agricultural residues and bagasse, were prepared by phosphoric acid activation varying the carbonization temperature (300-600°C), the weight ratio of phosphoric acid to precursor (R = 1-2.5), and carbonization time (0-3 h). Surface properties of the resulting carbons were markedly dependent on the precursor and a combined effect of the conditions employed. Bagasse carbons showed higher surface area and pore volume than those from agricultural residues. Maximum surface areas of around 1100 and 780 m2/g were respectively attained. Temperature above 500°C, impregnation ratio higher than 2, or prolonged carbonization beyond 1 h led to reduction in porosity development. Selected carbons from both wastes with relatively large mean pore radius showed good ability to decolorize a diluted solution of synthetic melanoidin, used as a model of molasses wastewater. Iodine number between 608 and 746 and methylene blue uptake of 213-261 (mg/g) were determined for the selected samples.
format JOUR
author Castro, J.B.
Bonelli, P.R.
Cerrella, E.G.
Cukierman, A.L.
author_facet Castro, J.B.
Bonelli, P.R.
Cerrella, E.G.
Cukierman, A.L.
author_sort Castro, J.B.
title Phosphoric acid activation of agricultural residues and bagasse from sugar cane: Influence of the experimental conditions on adsorption characteristics of activated carbons
title_short Phosphoric acid activation of agricultural residues and bagasse from sugar cane: Influence of the experimental conditions on adsorption characteristics of activated carbons
title_full Phosphoric acid activation of agricultural residues and bagasse from sugar cane: Influence of the experimental conditions on adsorption characteristics of activated carbons
title_fullStr Phosphoric acid activation of agricultural residues and bagasse from sugar cane: Influence of the experimental conditions on adsorption characteristics of activated carbons
title_full_unstemmed Phosphoric acid activation of agricultural residues and bagasse from sugar cane: Influence of the experimental conditions on adsorption characteristics of activated carbons
title_sort phosphoric acid activation of agricultural residues and bagasse from sugar cane: influence of the experimental conditions on adsorption characteristics of activated carbons
url http://hdl.handle.net/20.500.12110/paper_08885885_v39_n11_p4166_Castro
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AT bonellipr phosphoricacidactivationofagriculturalresiduesandbagassefromsugarcaneinfluenceoftheexperimentalconditionsonadsorptioncharacteristicsofactivatedcarbons
AT cerrellaeg phosphoricacidactivationofagriculturalresiduesandbagassefromsugarcaneinfluenceoftheexperimentalconditionsonadsorptioncharacteristicsofactivatedcarbons
AT cukiermanal phosphoricacidactivationofagriculturalresiduesandbagassefromsugarcaneinfluenceoftheexperimentalconditionsonadsorptioncharacteristicsofactivatedcarbons
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