Activated carbon developed from orange peels: Batch and dynamic competitive adsorption of basic dyes
Activated carbon from orange (Citrus sinensis) peel was developed through H3PO4 acid activation. Its ability as an adsorbent for the removal of two representative basic dyes (methylene blue and rhodamine B) from single and binary dyes solutions in batch and continuous modes was examined. The orange...
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todo:paper_09266690_v62_n_p437_Fernandez2023-10-03T15:46:40Z Activated carbon developed from orange peels: Batch and dynamic competitive adsorption of basic dyes Fernandez, M.E. Nunell, G.V. Bonelli, P.R. Cukierman, A.L. Basic dyes removal Binary equilibrium isotherms Competitive dynamic adsorption Orange peel-based activated carbon Phosphoric acid activation Basic dyes Competitive adsorption Competitive dynamics Equilibrium isotherms Orange peels Phosphoric acid activation acid activation activated carbon adsorption breakthrough curve dicotyledon dye equilibrium fruit isotherm Activated carbon from orange (Citrus sinensis) peel was developed through H3PO4 acid activation. Its ability as an adsorbent for the removal of two representative basic dyes (methylene blue and rhodamine B) from single and binary dyes solutions in batch and continuous modes was examined. The orange peel-based activated carbon presented a high specific surface area (1090m2/g), predominance of mesopores and acidic character. It also showed a high adsorption capacity for both dyes in batch and dynamic modes. Experimental equilibrium isotherms obtained from single-dye solutions fitted the Langmuir-Freundlich model, and those obtained from binary solutions were properly described by single and multi-component models. Breakthrough curves obtained from single-dye solutions exhibited a better removal performance for rhodamine B. Adsorption capacity at exhaustion time for this dye was 11% higher than for methylene blue. Additional experiments in dynamic conditions with a binary solution of both dyes pointed to adsorption competition for the active sites of the developed carbon. Breakthrough curves were adequately represented by a modified two-parameter model. © 2014 Elsevier B.V. Fil:Fernandez, M.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Nunell, G.V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bonelli, P.R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Cukierman, A.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_09266690_v62_n_p437_Fernandez |
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Universidad de Buenos Aires |
| institution_str |
I-28 |
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R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Basic dyes removal Binary equilibrium isotherms Competitive dynamic adsorption Orange peel-based activated carbon Phosphoric acid activation Basic dyes Competitive adsorption Competitive dynamics Equilibrium isotherms Orange peels Phosphoric acid activation acid activation activated carbon adsorption breakthrough curve dicotyledon dye equilibrium fruit isotherm |
| spellingShingle |
Basic dyes removal Binary equilibrium isotherms Competitive dynamic adsorption Orange peel-based activated carbon Phosphoric acid activation Basic dyes Competitive adsorption Competitive dynamics Equilibrium isotherms Orange peels Phosphoric acid activation acid activation activated carbon adsorption breakthrough curve dicotyledon dye equilibrium fruit isotherm Fernandez, M.E. Nunell, G.V. Bonelli, P.R. Cukierman, A.L. Activated carbon developed from orange peels: Batch and dynamic competitive adsorption of basic dyes |
| topic_facet |
Basic dyes removal Binary equilibrium isotherms Competitive dynamic adsorption Orange peel-based activated carbon Phosphoric acid activation Basic dyes Competitive adsorption Competitive dynamics Equilibrium isotherms Orange peels Phosphoric acid activation acid activation activated carbon adsorption breakthrough curve dicotyledon dye equilibrium fruit isotherm |
| description |
Activated carbon from orange (Citrus sinensis) peel was developed through H3PO4 acid activation. Its ability as an adsorbent for the removal of two representative basic dyes (methylene blue and rhodamine B) from single and binary dyes solutions in batch and continuous modes was examined. The orange peel-based activated carbon presented a high specific surface area (1090m2/g), predominance of mesopores and acidic character. It also showed a high adsorption capacity for both dyes in batch and dynamic modes. Experimental equilibrium isotherms obtained from single-dye solutions fitted the Langmuir-Freundlich model, and those obtained from binary solutions were properly described by single and multi-component models. Breakthrough curves obtained from single-dye solutions exhibited a better removal performance for rhodamine B. Adsorption capacity at exhaustion time for this dye was 11% higher than for methylene blue. Additional experiments in dynamic conditions with a binary solution of both dyes pointed to adsorption competition for the active sites of the developed carbon. Breakthrough curves were adequately represented by a modified two-parameter model. © 2014 Elsevier B.V. |
| format |
JOUR |
| author |
Fernandez, M.E. Nunell, G.V. Bonelli, P.R. Cukierman, A.L. |
| author_facet |
Fernandez, M.E. Nunell, G.V. Bonelli, P.R. Cukierman, A.L. |
| author_sort |
Fernandez, M.E. |
| title |
Activated carbon developed from orange peels: Batch and dynamic competitive adsorption of basic dyes |
| title_short |
Activated carbon developed from orange peels: Batch and dynamic competitive adsorption of basic dyes |
| title_full |
Activated carbon developed from orange peels: Batch and dynamic competitive adsorption of basic dyes |
| title_fullStr |
Activated carbon developed from orange peels: Batch and dynamic competitive adsorption of basic dyes |
| title_full_unstemmed |
Activated carbon developed from orange peels: Batch and dynamic competitive adsorption of basic dyes |
| title_sort |
activated carbon developed from orange peels: batch and dynamic competitive adsorption of basic dyes |
| url |
http://hdl.handle.net/20.500.12110/paper_09266690_v62_n_p437_Fernandez |
| work_keys_str_mv |
AT fernandezme activatedcarbondevelopedfromorangepeelsbatchanddynamiccompetitiveadsorptionofbasicdyes AT nunellgv activatedcarbondevelopedfromorangepeelsbatchanddynamiccompetitiveadsorptionofbasicdyes AT bonellipr activatedcarbondevelopedfromorangepeelsbatchanddynamiccompetitiveadsorptionofbasicdyes AT cukiermanal activatedcarbondevelopedfromorangepeelsbatchanddynamiccompetitiveadsorptionofbasicdyes |
| _version_ |
1807320596574371840 |