Aerogeles basados en quitosano para la remediación de efluentes textiles

Aerogels are porous materials that have very low density and can be used in various technological applications, among which the adsorption of contaminants from wastewater stands out. In this work, chitosan-based aerogels were obtained from the lyophilization of hydrogels cross-linked with glutaralde...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Kloster, Melina, Mosiewicki, Mirna A., Marcovich, Norma E.
Formato:	Online
Lenguaje:	spa
Publicado:	Facultad de Ciencias Aplicadas a la Industria 2023
Acceso en línea:	https://revistas.uncu.edu.ar/ojs3/index.php/revicap/article/view/7346

id	I11-R108article-7346
record_format	ojs
spelling	I11-R108article-73462023-12-20T15:57:16Z Chitosan based aerogels for textile wastewater remediation Aerogeles basados en quitosano para la remediación de efluentes textiles Kloster, Melina Mosiewicki, Mirna A. Marcovich, Norma E. Aerogels are porous materials that have very low density and can be used in various technological applications, among which the adsorption of contaminants from wastewater stands out. In this work, chitosan-based aerogels were obtained from the lyophilization of hydrogels cross-linked with glutaraldehyde. These materials were characterized by measuring their density, porosity, swelling degree and stability in different solvents and point of zero charge. Moreover, to test the behavior of the obtained materials as contaminant adsorbents, kinetic tests were carried out using Congo Red anionic dye. The experimental data from those tests were satisfactorily fitted with pseudo-second order model. It was found that the properties and adsorption capacities of the samples depended on their composition. More stable materials with better adsorption performance were obtained using higher contents of chitosan or glutaraldehyde.  Los aerogeles son materiales porosos de muy baja densidad que pueden ser utilizados en diversas aplicaciones de interés tecnológico, entre ellas se destaca la adsorción de contaminantes presentes en medio acuoso. En este trabajo se obtuvieron aerogeles basados en quitosano a partir de la liofilización de hidrogeles entrecruzados con glutaraldehído. Estos materiales fueron caracterizados a partir de su densidad, porosidad, grado de hinchamiento y estabilidad en diferentes solventes y el punto de carga cero. Además, para probar el comportamiento de los materiales como adsorbentes de contaminantes, se realizaron ensayos de cinética de adsorción utilizando el colorante aniónico Rojo Congo. Los datos experimentales de estos ensayos se ajustaron satisfactoriamente mediante el modelo de pseudo-segundo orden. Las propiedades y la capacidad de adsorción de las muestras resultaron dependientes de la composición de las mismas. Se obtuvieron materiales más estables y con mejor desempeño en adsorción al aumentar el contenido de quitosano o de glutaraldehído. Facultad de Ciencias Aplicadas a la Industria 2023-12-20 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.uncu.edu.ar/ojs3/index.php/revicap/article/view/7346 Revista de Ingeniería y Ciencias Aplicadas; Vol. 2 No. 2 (2023): Revista de Ingeniería y Ciencias Aplicadas (RevICAp) Revista de Ingeniería y Ciencias Aplicadas; Vol. 2 Núm. 2 (2023): Revista de Ingeniería y Ciencias Aplicadas (RevICAp) 2796-9444 spa https://revistas.uncu.edu.ar/ojs3/index.php/revicap/article/view/7346/6144 Derechos de autor 2023 Melina Kloster, Mirna A. Mosiewicki, Norma E. Marcovich http://creativecommons.org/licenses/by-nc-nd/4.0
institution	Universidad Nacional de Cuyo
building	Revistas en línea
filtrotop_str	Revistas en línea
collection	Revista de Ingeniería y Ciencias Aplicadas
journal_title_str	Revista de Ingeniería y Ciencias Aplicadas
institution_str	I-11
repository_str	R-108
language	spa
format	Online
author	Kloster, Melina Mosiewicki, Mirna A. Marcovich, Norma E.
spellingShingle	Kloster, Melina Mosiewicki, Mirna A. Marcovich, Norma E. Aerogeles basados en quitosano para la remediación de efluentes textiles
author_facet	Kloster, Melina Mosiewicki, Mirna A. Marcovich, Norma E.
author_sort	Kloster, Melina
title	Aerogeles basados en quitosano para la remediación de efluentes textiles
title_short	Aerogeles basados en quitosano para la remediación de efluentes textiles
title_full	Aerogeles basados en quitosano para la remediación de efluentes textiles
title_fullStr	Aerogeles basados en quitosano para la remediación de efluentes textiles
title_full_unstemmed	Aerogeles basados en quitosano para la remediación de efluentes textiles
title_sort	chitosan based aerogels for textile wastewater remediation
description	Aerogels are porous materials that have very low density and can be used in various technological applications, among which the adsorption of contaminants from wastewater stands out. In this work, chitosan-based aerogels were obtained from the lyophilization of hydrogels cross-linked with glutaraldehyde. These materials were characterized by measuring their density, porosity, swelling degree and stability in different solvents and point of zero charge. Moreover, to test the behavior of the obtained materials as contaminant adsorbents, kinetic tests were carried out using Congo Red anionic dye. The experimental data from those tests were satisfactorily fitted with pseudo-second order model. It was found that the properties and adsorption capacities of the samples depended on their composition. More stable materials with better adsorption performance were obtained using higher contents of chitosan or glutaraldehyde.
publisher	Facultad de Ciencias Aplicadas a la Industria
publishDate	2023
url	https://revistas.uncu.edu.ar/ojs3/index.php/revicap/article/view/7346
work_keys_str_mv	AT klostermelina chitosanbasedaerogelsfortextilewastewaterremediation AT mosiewickimirnaa chitosanbasedaerogelsfortextilewastewaterremediation AT marcovichnormae chitosanbasedaerogelsfortextilewastewaterremediation AT klostermelina aerogelesbasadosenquitosanoparalaremediaciondeefluentestextiles AT mosiewickimirnaa aerogelesbasadosenquitosanoparalaremediaciondeefluentestextiles AT marcovichnormae aerogelesbasadosenquitosanoparalaremediaciondeefluentestextiles
_version_	1800221042322440192

Aerogeles basados en quitosano para la remediación de efluentes textiles

Ejemplares similares