Adsorption performance of food red 17 dye using an eco-friendly material based on luffa cylindrica and chitosan
Luffa cylindrica (LC), a lignocellulosic material coveted for its versatility, was investigated to immobilize crosslinked chitosan and remove Food red 17 (FR17) dye from aqueous solutions. LC/chitosan was crosslinked with epichlorohydrin (LC/CS/EPIC) and glutaraldehyde (LC/CS/GLUT). LC/CS/GLUT and L...
| Autores: | , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2021 |
| País: | Colombia |
| Institución: | Corporación Universidad de la Costa |
| Repositorio: | Repositorio REDICUC |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.cuc.edu.co:11323/9224 |
| Acceso en línea: | https://hdl.handle.net/11323/9224 https://doi.org/10.1016/j.molliq.2021.118144 https://repositorio.cuc.edu.co/ |
| Access Level: | acceso embargado |
| Palabra clave: | Luffa cylindrical Chitosan Adsorption Dye |
| Sumario: | Luffa cylindrica (LC), a lignocellulosic material coveted for its versatility, was investigated to immobilize crosslinked chitosan and remove Food red 17 (FR17) dye from aqueous solutions. LC/chitosan was crosslinked with epichlorohydrin (LC/CS/EPIC) and glutaraldehyde (LC/CS/GLUT). LC/CS/GLUT and LC/CS/EPIC presented an adequate morphology for mass transfer, relevant functional groups for adsorption. Furthermore, FR17 dye adsorption was favored at pH 2. Pseudo-second-order and Sips models represented the kinetic and isotherm data satisfactorily. The adsorption process for both adsorbents was endothermic, spontaneous, and favorable. The maximum adsorption capacity for LC/CS/GLUT was 77.66 mg g 1, and for LC/CS/EPIC was 43.01 mg g 1 for dye FR17. Furthermore, when reused, the adsorbents remain at around 70% of their original capacities after six adsorption cycles. Thus, the materials prepared from Luffa cylindrica and chitosan resulted in promising eco-friendly adsorbents. |
|---|