Removal of the direct navy-blue dye on modified coffee bean
The presence of dyes in water bodies inhibits the penetration of light, affecting the flora and fauna of these ecosystems, which is why, greater efforts are made to eliminate them before being poured. This study allowed the removal of the direct navy-blue dye (DNB), using activated carbon prepared f...
- Autores:
-
Castellar-Ortega, Grey Cecilia
- Tipo de recurso:
- Fecha de publicación:
- 2019
- Institución:
- Universidad del Atlántico
- Repositorio:
- Repositorio Uniatlantico
- Idioma:
- eng
- OAI Identifier:
- oai:repositorio.uniatlantico.edu.co:20.500.12834/847
- Acceso en línea:
- https://hdl.handle.net/20.500.12834/847
- Palabra clave:
- Tecnologia y ciencias del agua
- Rights
- openAccess
- License
- http://creativecommons.org/licenses/by-nc/4.0/
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Removal of the direct navy-blue dye on modified coffee bean |
| dc.title.alternative.spa.fl_str_mv |
Remoción del colorante azul marino directo sobre borra de café modificada |
| title |
Removal of the direct navy-blue dye on modified coffee bean |
| spellingShingle |
Removal of the direct navy-blue dye on modified coffee bean Tecnologia y ciencias del agua |
| title_short |
Removal of the direct navy-blue dye on modified coffee bean |
| title_full |
Removal of the direct navy-blue dye on modified coffee bean |
| title_fullStr |
Removal of the direct navy-blue dye on modified coffee bean |
| title_full_unstemmed |
Removal of the direct navy-blue dye on modified coffee bean |
| title_sort |
Removal of the direct navy-blue dye on modified coffee bean |
| dc.creator.fl_str_mv |
Castellar-Ortega, Grey Cecilia |
| dc.contributor.author.none.fl_str_mv |
Castellar-Ortega, Grey Cecilia |
| dc.contributor.other.none.fl_str_mv |
Cely-Bautista, María Mercedes Cardozo-Arrieta, Beatriz María Angulo-Mercado, Edgardo Ramón Mendoza-Colina, Evert de Jesús Zambrano-Arevalo, Alejandra M. Jaramillo-Colpas, Javier Enrique Rosales-Díaz, Cristian Leroy |
| dc.subject.keywords.spa.fl_str_mv |
Tecnologia y ciencias del agua |
| topic |
Tecnologia y ciencias del agua |
| description |
The presence of dyes in water bodies inhibits the penetration of light, affecting the flora and fauna of these ecosystems, which is why, greater efforts are made to eliminate them before being poured. This study allowed the removal of the direct navy-blue dye (DNB), using activated carbon prepared from coffee beans and H3PO4. The experimental methodology began with the preparation of three types of activated carbon by varying the concentration of H3PO4 (20, 40 and 60% m/v). Texture properties were evaluated by adsorption-desorption isotherms with N2 to 77 K, the identification and quantification of organic functional groups, mainly acids, with FTIR and the Boehm method, respectively. Batch adsorption experiments were performed by varying the initial dye concentration (5, 10, 50, 75, 100 and 200 mg/dm3) to 25 °C and, the adsorption kinetics was determined. Both coffee beans and activated carbons have an acidic nature with surface area development between 519 and 771 m2/g. With respect to the batch study, a monolayer and multilayer growth was observed on a heterogeneous surface. Activated carbon prepared with 20% of H3PO4 recorded the highest removal capacity with a value of 25.8 mg/g. The kinetic model of pseudo second order was the one that best fit to the experimental data (R2 > 0.98). It can be concluded that the coffee bean treated with H3PO4 is an efficient adsorbent to remove DNB from aqueous solutions |
| publishDate |
2019 |
| dc.date.issued.none.fl_str_mv |
2019-10-19 |
| dc.date.submitted.none.fl_str_mv |
2019-10-01 |
| dc.date.accessioned.none.fl_str_mv |
2022-11-15T19:44:25Z |
| dc.date.available.none.fl_str_mv |
2022-11-15T19:44:25Z |
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http://purl.org/coar/version/c_970fb48d4fbd8a85 |
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http://purl.org/coar/resource_type/c_2df8fbb1 |
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info:eu-repo/semantics/article |
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info:eu-repo/semantics/publishedVersion |
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Artículo |
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publishedVersion |
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https://hdl.handle.net/20.500.12834/847 |
| dc.identifier.doi.none.fl_str_mv |
10.24850/j-tyca-2020-04-01 |
| dc.identifier.instname.spa.fl_str_mv |
Universidad del Atlántico |
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Repositorio Universidad del Atlántico |
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https://hdl.handle.net/20.500.12834/847 |
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10.24850/j-tyca-2020-04-01 Universidad del Atlántico Repositorio Universidad del Atlántico |
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eng |
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eng |
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Castellar-Ortega, Grey Cecilia146bceb6-e3a1-41fa-8579-5b613badde0bCely-Bautista, María MercedesCardozo-Arrieta, Beatriz MaríaAngulo-Mercado, Edgardo RamónMendoza-Colina, Evert de JesúsZambrano-Arevalo, Alejandra M.Jaramillo-Colpas, Javier EnriqueRosales-Díaz, Cristian Leroy2022-11-15T19:44:25Z2022-11-15T19:44:25Z2019-10-192019-10-01https://hdl.handle.net/20.500.12834/84710.24850/j-tyca-2020-04-01Universidad del AtlánticoRepositorio Universidad del AtlánticoThe presence of dyes in water bodies inhibits the penetration of light, affecting the flora and fauna of these ecosystems, which is why, greater efforts are made to eliminate them before being poured. This study allowed the removal of the direct navy-blue dye (DNB), using activated carbon prepared from coffee beans and H3PO4. The experimental methodology began with the preparation of three types of activated carbon by varying the concentration of H3PO4 (20, 40 and 60% m/v). Texture properties were evaluated by adsorption-desorption isotherms with N2 to 77 K, the identification and quantification of organic functional groups, mainly acids, with FTIR and the Boehm method, respectively. Batch adsorption experiments were performed by varying the initial dye concentration (5, 10, 50, 75, 100 and 200 mg/dm3) to 25 °C and, the adsorption kinetics was determined. Both coffee beans and activated carbons have an acidic nature with surface area development between 519 and 771 m2/g. With respect to the batch study, a monolayer and multilayer growth was observed on a heterogeneous surface. Activated carbon prepared with 20% of H3PO4 recorded the highest removal capacity with a value of 25.8 mg/g. The kinetic model of pseudo second order was the one that best fit to the experimental data (R2 > 0.98). It can be concluded that the coffee bean treated with H3PO4 is an efficient adsorbent to remove DNB from aqueous solutionsapplication/pdfenghttp://creativecommons.org/licenses/by-nc/4.0/Attribution-NonCommercial 4.0 Internationalinfo:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Removal of the direct navy-blue dye on modified coffee beanRemoción del colorante azul marino directo sobre borra de café modificadaPúblico generalTecnologia y ciencias del aguainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArtículohttp://purl.org/coar/version/c_970fb48d4fbd8a85http://purl.org/coar/resource_type/c_2df8fbb1BarranquillaSede NorteAhmad, A., Loh, M., & Aziz, J. (2007). Preparation and characterization of activated carbon from oil palm wood and its evaluation on methylene blue adsorption. Dyes and Pigments, 75(2), 263-272.Ahmad, M. A., & Alrozi, R. (2010). 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Arabian Journal of Chemistry, 9, 1155-1162.http://purl.org/coar/resource_type/c_6501ORIGINALRemoval of the direct navy-blue dye on modified coffee.pdfRemoval of the direct navy-blue dye on modified coffee.pdfapplication/pdf1295275https://repositorio.uniatlantico.edu.co/bitstream/20.500.12834/847/1/Removal%20of%20the%20direct%20navy-blue%20dye%20on%20modified%20coffee.pdfdd5763e8a3ec4fa361ebf9958ea61f45MD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8914https://repositorio.uniatlantico.edu.co/bitstream/20.500.12834/847/2/license_rdf24013099e9e6abb1575dc6ce0855efd5MD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81306https://repositorio.uniatlantico.edu.co/bitstream/20.500.12834/847/3/license.txt67e239713705720ef0b79c50b2ececcaMD5320.500.12834/847oai:repositorio.uniatlantico.edu.co:20.500.12834/8472022-11-15 14:44:26.43DSpace de la Universidad de Atlánticosysadmin@mail.uniatlantico.edu.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 |