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...

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Autores:: Castellar Ortega, Grey Cecilia
Cely Baustista, Maria Mercedes
CARDOZO ARRIETA, BEATRIZ MARIA
Angulo, Edgardo
Mendoza Colina, Evert Jesus
Zambrano-Arevalo, Alejandra M.
Jaramillo Colpas, Javier Enrique
Rosales Diaz , Cristian Leroy

Tipo de recurso:: Article of journal

Fecha de publicación:: 2020

Institución:: Corporación Universidad de la Costa

Repositorio:: REDICUC - Repositorio CUC

Idioma:: eng

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network_name_str	REDICUC - Repositorio CUC
repository_id_str
dc.title.spa.fl_str_mv	Removal of the direct navy-blue dye on modified coffee bean
dc.title.translated.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 Activated carbon Characterization techniques phosphoric acid Adsorption isotherm Adsorption kinetics Carbón activado Técnicas de caracterización Ácido fosfórico Isoterma de adsorción Cinética de adsorción
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 Cely Baustista, Maria Mercedes CARDOZO ARRIETA, BEATRIZ MARIA Angulo, Edgardo Mendoza Colina, Evert Jesus Zambrano-Arevalo, Alejandra M. Jaramillo Colpas, Javier Enrique Rosales Diaz , Cristian Leroy
dc.contributor.author.spa.fl_str_mv	Castellar Ortega, Grey Cecilia Cely Baustista, Maria Mercedes CARDOZO ARRIETA, BEATRIZ MARIA Angulo, Edgardo Mendoza Colina, Evert Jesus Zambrano-Arevalo, Alejandra M. Jaramillo Colpas, Javier Enrique Rosales Diaz , Cristian Leroy
dc.subject.spa.fl_str_mv	Activated carbon Characterization techniques phosphoric acid Adsorption isotherm Adsorption kinetics Carbón activado Técnicas de caracterización Ácido fosfórico Isoterma de adsorción Cinética de adsorción
topic	Activated carbon Characterization techniques phosphoric acid Adsorption isotherm Adsorption kinetics Carbón activado Técnicas de caracterización Ácido fosfórico Isoterma de adsorción Cinética de adsorción
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	2020
dc.date.issued.none.fl_str_mv	2020
dc.date.accessioned.none.fl_str_mv	2021-01-27T15:02:20Z
dc.date.available.none.fl_str_mv	2021-01-27T15:02:20Z
dc.type.spa.fl_str_mv	Artículo de revista
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dc.identifier.issn.spa.fl_str_mv	0187-8336 2007-2422
dc.identifier.uri.spa.fl_str_mv	https://hdl.handle.net/11323/7770
dc.identifier.doi.spa.fl_str_mv	DOI: 10.24850/j-tyca-2020-04-01
dc.identifier.instname.spa.fl_str_mv	Corporación Universidad de la Costa
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identifier_str_mv	0187-8336 2007-2422 DOI: 10.24850/j-tyca-2020-04-01 Corporación Universidad de la Costa REDICUC - Repositorio CUC
url	https://hdl.handle.net/11323/7770 https://repositorio.cuc.edu.co/
dc.language.iso.none.fl_str_mv	eng
language	eng
dc.relation.references.spa.fl_str_mv	Ahmad, 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). Optimization of preparation conditions for mangosteen peel-based activated carbons for the removal of Remazol Brilliant Blue R using response surface methodology. Chemical Engineering Journal, 165(3), 883-890. Ahmad, A. A., & Hameed, B. H. (2010). Fixed-bed adsorption of reactive azo dye onto granular activated carbon prepared from waste. Journal of Hazardous Materials, 175(1-3), 298-303. Ahsan, M. A., Jabbari, V., Islam, M. T., Kim, H., Hernandez-Viezcas, J. A., Lin, Y., Díaz-Moreno, C. A., Lopez, J., Gardea-Torresdey, J., & Noveron, J. C. (2018). Green synthesis of a highly efficient biosorbent for organic, pharmaceutical, and heavy metal pollutants removal: Engineering surface chemistry of polymeric biomass of spent coffee waste. Journal of Water Process Engineering, 25, 309319. Anastopoulos, I., Karamesouti, M., Mitropoulos, A. C., & Kyzas, G. Z. (2017). A review for coffee adsorbents. Journal of Molecular Liquids, 229, 555-565. Albis, A., Martinez, J., & Santiago, P. (2017). Remoción de zinc (II) de soluciones acuosas usando cáscara de yuca (Manihot esculenta): experimentos en columna. Prospectiva, 15(1), 16-28. Aljeboree, A. M., Alshirifi, A. N., & Alkaim, A. F. (2017). Kinetics and equilibrium study for the adsorption of textile dyes on coconut shell activated carbon. Arabian Journal of Chemistry, 10, S3381-S3393. Baskaralingam, P., Pulikesi, M., Ramamurthi, V., & Sivanesan, S. (2007). Modified hectorites and adsorption studies of a reactive. Applied Clay Science, 37(1-2), 207-214. Boehm, H. P. (2002). Surface oxides on carbon and their analysis: A critical. Carbon, 40(2), 145-149. Brunauer, S., Emmett, P. H., & Teller, E. (1938). Adsorption of gases in multimolecular layers. Journal of the American Chemical Society, 60, 309-319. Chávez-Sifontes, M., & Domine, M. (2013). Lignina, estructura y aplicaciones: métodos de despolimerización para la obtención de derivados aromáticos de interés industrial. Avances en Ciencias e Ingeniería, 4(4), 15-46. Cheruiyot, G. K., Wanyonyi, W. C., Kiplimo, J. J., & Maina, E. N. (2019). Adsorption of toxic crystal violet dye using coffee husks: Equilibrium, kinetics and thermodynamics study. Scientific African, 5, e00116. Dai, Y., Zhang, K., Meng, X., Li, J., Guan, X., Sun, Q., Sun, Y., Wang, W., Lin, M., Liu, M., Yang, S., Chen, Y., Gao, F., Zhang, X., & Liu, Z. (2019). New use for spent coffee ground as an adsorbent for tetracycline removal in water. Chemosphere, 215, 163-172. De La Rosa, A. (2010). Estudio del efecto de un novedoso proceso de desacidificación en el sabor y composición del café (tesis de maestría). Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Instituto Politécnico Nacional, Santiago de Querétaro, México. El-Messaoudi, N., El-Khomri, M., Dbik, A., Bentahar, S., Lacherai, A., & Bakiz, B. (2016). Biosorption of Congo red in a fixed-bed column from aqueous solution using jujube shell: Experimental and mathematical modeling. Journal of Environmental Chemical Engineering, 4(4), 3848-3855. Fernández, M. E., Nunell, G. V., Bonelli, P. R., & Cukierman, A. L. (2014). Activated carbon developed from orange peels: Batch and dynamic competitive adsorption of basic dyes. Industrial Crops and Products, 62, 437-445. Freundlich, H. (1906). Over the adsorption in solution. Journal of Physical Chemistry, 57, 387-470. González-García, P. (2018). Activated carbon from lignocellulosics precursors: A review of the synthesis methods, characterization techniques and applications. Renewable and Sustainable Energy Reviews, 82, 1393-1414. Gonçalves, M., Guerreiro, M., De Oliveira, L., & De Castro, C. (2013). A friendly environmental material: Iron oxide dispersed over activated carbon from coffee husk for organic pollutants removal. Journal of Environmental Management, 127, 206-211. Gutiérrez, A. (2002). Café, antioxidantes y protección a la salud. Medisan, 6(4), 72-81. Hameed, B. H., & El-Khaiary, M. I. (2008). Equilibrium, kinetics and mechanism of malachite green adsorption activated carbon prepared from bamboo by K2CO3 activation and subsequent gasification with CO2. Journal of Hazardous Materials, 157(2-3), 344-351. Heibati, B., Rodriguez-Couto, S., Al-Ghouti, M. A., Asif, M., Tyagi, I., Agarwal, S., & Gupta, V. K. (2015). Kinetics and thermodynamics of enhanced adsorption of the dye AR 18 using activated carbons prepared from walnut and poplar woods. Journal of Molecular Liquids, 208, 99-105. Jagtoyen, M., & Derbyshire, F. (1998). Activated carbons from yellow poplar and white oak by H3PO4 activation. Carbon, 36, 1085-1097. Jung, K. W., Choi, B. H., Hwang, M. J., Jeong, T. U., & Ahn, K. H. (2016). Fabrication of granular activated carbons derived from spent coffee grounds by entrapment in calcium alginate beads for adsorption of acid orange 7 and methylene blue. Bioresource Technology, 219, 185-195. Jung, K. W., Choi, B. H., Hwang, M. J., Choi, J. W., Lee, S. H., Chang, J. S., & Ahn, K. H. (2017). Adsorptive removal of anionic azo dye from aqueous solution using activated carbon derived from extracted coffee residues. Journal of Cleaner Production, 166, 360-368. Kyzas, G. Z., Lazaridis, N. K., & Mitropoulos, A. C. (2012). Removal of dyes from aqueous solutions with untreated coffee residues as potential low-cost adsorbents: Equilibrium, reuse and thermodynamic approach. Chemical Engineering Journal, 189-190, 148-159. Konicki, W., Aleksandrzak, M., & Mijowska, E. (2017). Equilibrium, kinetic and thermodynamic studies on adsorption of cationic dyes from aqueous solutions using graphene oxide. Chemical Engineering Research and Design, 123, 35-49. Lafi, R., Fradj, A., Hafiane, A., & Hameed, B. H. (2014). Coffee waste as potential adsorbent for the removal of basic dyes from aqueous solution. Korean Journal of Chemical Engineering, 31(12), 21982206. Lafi, R., & Hafiane, A. (2016). Removal of methyl orange (MO) from aqueous solution using cationic surfactants modified coffee waste (MCWs). Journal of the Taiwan Institute of Chemical Engineers, 58, 424-433. Langmuir, I. (1916). The adsorption of gases on plane surfaces of glass, mica and platinum. Journal of the American Chemical Society, 40, 1361-1403. Ma, X., & Ouyang, F. (2013). Adsorption properties of biomass-based activated carbon prepared with spent coffee grounds and pomelo skin by phosphoric acid activation. Applied Surface Science, 268, 566-570. Murillo, Y., Giraldo, L., & Moreno, J. C. (2011). Determinación de la cinética de adsorción de 2,4-dinitrofenol en carbonizado de hueso bovino por espectrofotometría uv-vis. Revista Colombiana de Química, 40(1), 91-103. Órfão, J. J. M., Silva, A. I. M., Pereira, J. C. V., Barata, S. A., Fonseca, I. M., Faria, P. C. C., & Pereira, M. F. R. (2006). Adsorption of a reactive dye on chemically modified activated carbons-influence of pH. Journal of Colloid and Interface Science, 296(2), 480-489. Pavlović, M. D., Buntić, A. V., Mihajlovski, K. R., Ŝiler-Marinković, S. S., Antonović, D. G., Radovanović, Z., & Dimitrijević-Branković, S. I. (2014). Rapid cationic dye adsorption on polyphenol-extracted coffee grounds: A response surface methodology approach. Journal of the Taiwan Institute of Chemical Engineers, 45, 1691-1699. Peláez, A. (2013). Alternativas de solución para el tratamiento de efluentes textiles (tesis de doctorado). Academia de Ingeniería de México, Ciudad de México, México. Prahas, D., Kartika, Y., Indraswati, N., & Ismadji, S. (2008). Activated carbon from jackfruit peel waste by H3PO4 chemical activation: Pore structure and surface chemistry characterization. Chemical Engineering Journal, 140, 32-42. Puerta, G. I. (2011). Composición química de una taza de café. Ciencia, Tecnología e Innovación para la Caficultura Colombiana, 414(2), 1- 12. Ramos, J. (2010). Estudio del proceso de biosorción de colorantes sobre cuncho de café (tesis de maestría). Universidad Nacional de Colombia, Bogotá, Colombia. Rattanapan, S., Srikram, J., & Kongsune, P. (2017). Adsorption of methyl orange on coffee grounds activated carbon. Energy Procedia, 138, 949-954. Tehrani, N., Aznar, J., & Kiros, Y. (2015). Coffee extract residue for production of ethanol and activated carbons. Journal of Cleaner Production, 91, 64-70. Valencia-Ríos, J. S., & Castellar-Ortega, G. C. (2013). Predicción de las curvas de ruptura para la remoción de plomo (II) en disolución acuosa sobre carbón activado en una columna empacada. Revista Facultad de Ingeniería Universidad de Antioquia, 66, 141-158. Wen, X., Liu, H., Zhang, L., Zhang, J., Fu, C., Shi, X., Chen, X., Mijowska, E., Chen, M. J., & Wang, D. Y. (2019). Large-scale converting waste coffee grounds into functional carbon materials as high-efficient adsorbent for organic dyes. Bioresource Technology, 272, 92-98. Yakout, S., & Sharaf, G. (2016). Characterization of activated carbon prepared by phosphoric acid activation of olive stones. Arabian Journal of Chemistry, 9, 1155-1162.
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spelling	Castellar Ortega, Grey CeciliaCely Baustista, Maria MercedesCARDOZO ARRIETA, BEATRIZ MARIAAngulo, EdgardoMendoza Colina, Evert JesusZambrano-Arevalo, Alejandra M.Jaramillo Colpas, Javier EnriqueRosales Diaz , Cristian Leroy2021-01-27T15:02:20Z2021-01-27T15:02:20Z20200187-83362007-2422https://hdl.handle.net/11323/7770DOI: 10.24850/j-tyca-2020-04-01Corporación Universidad de la CostaREDICUC - Repositorio CUChttps://repositorio.cuc.edu.co/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.La presencia de colorantes en los cuerpos de agua inhibe la penetración de la luz, afectando la flora y la fauna de estos ecosistemas, razón por la cual se hacen cada vez esfuerzos mayores para eliminarlos antes de ser vertidos. Este estudio permitió remover el colorante azul marino directo (AMD), empleando carbón activado preparado a partir de la borra de café y H3PO4. La metodología experimental inició con la preparación de tres tipos de carbón activado, variando la concentración de H3PO4 (20, 40 y 60% m/v). Las propiedades de textura se evaluaron mediante isotermas de adsorción-desorción con N2 a 77 K; la identificación y cuantificación de grupos funcionales orgánicos, en especial ácidos, con FTIR, y el método de Boehm, respectivamente. Se realizaron experimentos de adsorción por lote, variando la concentración inicial del colorante (5, 10, 50, 75, 100 y 200 mg/dm3) a 25 °C y se determinó la cinética de adsorción. Tanto la borra de café como los carbones activados tienen naturaleza ácida con desarrollo de áreas superficiales entre 519 y 771 m2/g. Con respecto al estudio por lote, se observó un crecimiento en monocapa y multicapa sobre una superficie heterogénea. El carbón activado preparado con 20% de H3PO4 registró la mayor capacidad de remoción, con un valor de 25.8 mg/g. El modelo cinético de pseudo segundo orden fue el que mejor se ajustó a los datos experimentales (R2 > 0.98). Se puede concluir que la borra de café tratada con H3PO4 es un adsorbente eficiente para eliminar AMD de soluciones acuosas.Castellar Ortega, Grey Cecilia-will be generated-orcid-0000-0001-7711-5912-600Cely Baustista, Maria Mercedes-will be generated-orcid-0000-0003-2980-8807-600CARDOZO ARRIETA, BEATRIZ MARIA-will be generated-orcid-0000-0002-0112-3622-600Angulo, Edgardo-will be generated-orcid-0000-0003-4884-5099-600Mendoza Colina, Evert Jesus-will be generated-orcid-0000-0002-8333-0042-600Zambrano-Arevalo, Alejandra M.Jaramillo Colpas, Javier Enrique-will be generated-orcid-0000-0002-5921-1529-600Rosales Diaz, Cristian Leroy-will be generated-orcid-0000-0003-3655-709X-600application/pdfengCorporación Universidad de la CostaCC0 1.0 Universalhttp://creativecommons.org/publicdomain/zero/1.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Tecnologia y Ciencias del AguaActivated carbonCharacterization techniquesphosphoric acidAdsorption isothermAdsorption kineticsCarbón activadoTécnicas de caracterizaciónÁcido fosfóricoIsoterma de adsorciónCinética de adsorciónRemoval of the direct navy-blue dye on modified coffee beanRemoción del colorante azul marino directo sobre borra de café modificadaArtículo de revistahttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1Textinfo:eu-repo/semantics/articlehttp://purl.org/redcol/resource_type/ARTinfo:eu-repo/semantics/acceptedVersionAhmad, 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). Optimization of preparation conditions for mangosteen peel-based activated carbons for the removal of Remazol Brilliant Blue R using response surface methodology. Chemical Engineering Journal, 165(3), 883-890.Ahmad, A. A., & Hameed, B. H. (2010). Fixed-bed adsorption of reactive azo dye onto granular activated carbon prepared from waste. Journal of Hazardous Materials, 175(1-3), 298-303.Ahsan, M. A., Jabbari, V., Islam, M. T., Kim, H., Hernandez-Viezcas, J. A., Lin, Y., Díaz-Moreno, C. A., Lopez, J., Gardea-Torresdey, J., & Noveron, J. C. (2018). Green synthesis of a highly efficient biosorbent for organic, pharmaceutical, and heavy metal pollutants removal: Engineering surface chemistry of polymeric biomass of spent coffee waste. Journal of Water Process Engineering, 25, 309319.Anastopoulos, I., Karamesouti, M., Mitropoulos, A. C., & Kyzas, G. Z. (2017). A review for coffee adsorbents. Journal of Molecular Liquids, 229, 555-565.Albis, A., Martinez, J., & Santiago, P. (2017). Remoción de zinc (II) de soluciones acuosas usando cáscara de yuca (Manihot esculenta): experimentos en columna. Prospectiva, 15(1), 16-28.Aljeboree, A. M., Alshirifi, A. N., & Alkaim, A. F. (2017). Kinetics and equilibrium study for the adsorption of textile dyes on coconut shell activated carbon. Arabian Journal of Chemistry, 10, S3381-S3393.Baskaralingam, P., Pulikesi, M., Ramamurthi, V., & Sivanesan, S. (2007). Modified hectorites and adsorption studies of a reactive. Applied Clay Science, 37(1-2), 207-214.Boehm, H. P. (2002). Surface oxides on carbon and their analysis: A critical. Carbon, 40(2), 145-149.Brunauer, S., Emmett, P. H., & Teller, E. (1938). Adsorption of gases in multimolecular layers. Journal of the American Chemical Society, 60, 309-319.Chávez-Sifontes, M., & Domine, M. (2013). Lignina, estructura y aplicaciones: métodos de despolimerización para la obtención de derivados aromáticos de interés industrial. Avances en Ciencias e Ingeniería, 4(4), 15-46.Cheruiyot, G. K., Wanyonyi, W. C., Kiplimo, J. J., & Maina, E. N. (2019). Adsorption of toxic crystal violet dye using coffee husks: Equilibrium, kinetics and thermodynamics study. Scientific African, 5, e00116.Dai, Y., Zhang, K., Meng, X., Li, J., Guan, X., Sun, Q., Sun, Y., Wang, W., Lin, M., Liu, M., Yang, S., Chen, Y., Gao, F., Zhang, X., & Liu, Z. (2019). New use for spent coffee ground as an adsorbent for tetracycline removal in water. Chemosphere, 215, 163-172.De La Rosa, A. (2010). Estudio del efecto de un novedoso proceso de desacidificación en el sabor y composición del café (tesis de maestría). Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Instituto Politécnico Nacional, Santiago de Querétaro, México.El-Messaoudi, N., El-Khomri, M., Dbik, A., Bentahar, S., Lacherai, A., & Bakiz, B. (2016). Biosorption of Congo red in a fixed-bed column from aqueous solution using jujube shell: Experimental and mathematical modeling. Journal of Environmental Chemical Engineering, 4(4), 3848-3855.Fernández, M. E., Nunell, G. V., Bonelli, P. R., & Cukierman, A. L. (2014). Activated carbon developed from orange peels: Batch and dynamic competitive adsorption of basic dyes. Industrial Crops and Products, 62, 437-445.Freundlich, H. (1906). Over the adsorption in solution. Journal of Physical Chemistry, 57, 387-470.González-García, P. (2018). Activated carbon from lignocellulosics precursors: A review of the synthesis methods, characterization techniques and applications. Renewable and Sustainable Energy Reviews, 82, 1393-1414.Gonçalves, M., Guerreiro, M., De Oliveira, L., & De Castro, C. (2013). A friendly environmental material: Iron oxide dispersed over activated carbon from coffee husk for organic pollutants removal. Journal of Environmental Management, 127, 206-211.Gutiérrez, A. (2002). Café, antioxidantes y protección a la salud. Medisan, 6(4), 72-81.Hameed, B. H., & El-Khaiary, M. I. (2008). Equilibrium, kinetics and mechanism of malachite green adsorption activated carbon prepared from bamboo by K2CO3 activation and subsequent gasification with CO2. Journal of Hazardous Materials, 157(2-3), 344-351.Heibati, B., Rodriguez-Couto, S., Al-Ghouti, M. A., Asif, M., Tyagi, I., Agarwal, S., & Gupta, V. K. (2015). Kinetics and thermodynamics of enhanced adsorption of the dye AR 18 using activated carbons prepared from walnut and poplar woods. Journal of Molecular Liquids, 208, 99-105.Jagtoyen, M., & Derbyshire, F. (1998). 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Removal of the direct navy-blue dye on modified coffee bean

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