Removal of Mo(VI), Pb(II), and Cu(II) from wastewater using electrospun cellulose acetate/chitosan biopolymer fibers
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Título: | Removal of Mo(VI), Pb(II), and Cu(II) from wastewater using electrospun cellulose acetate/chitosan biopolymer fibers |
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Autor/es: | Lopez, Esmeralda | Gómez, Mauricio | Becar, Ian | Zapata, Paula | Pizarro, Jaime | Navlani-García, Miriam | Cazorla-Amorós, Diego | Presser, Volker | Gómez, Tatiana | Cárdenas, Carlos |
Grupo/s de investigación o GITE: | Materiales Carbonosos y Medio Ambiente |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales |
Palabras clave: | Electrospun fibers | Biopolymers | Wastewater treatment | Adsorption metal ions |
Fecha de publicación: | 7-may-2024 |
Editor: | Elsevier |
Cita bibliográfica: | International Journal of Biological Macromolecules. 2024, 269(Part 2): 132160. https://doi.org/10.1016/j.ijbiomac.2024.132160 |
Resumen: | Environmentally friendly polymers such as cellulose acetate (CA) and chitosan (CS) were used to obtain electrospun fibers for Cu2+, Pb2+, and Mo6+ capture. The solvents dichloromethane (DCM) and dimethylformamide (DMF) allowed the development of a surface area of 148 m2 g−1 for CA fibers and 113 m2 g−1 for cellulose acetate/chitosan (CA/CS) fibers. The fibers were characterized by IR-DRIFT, SEM, TEM, CO2 sorption isotherms at 273 K, Hg porosimetry, TGA, stress-strain tests, and XPS. The CA/CS fibers had a higher adsorption capacity than CA fibers without affecting their physicochemical properties. The capture capacity reached 102 mg g−1 for Cu2+, 49.3 mg g−1 for Pb2+, and 13.1 mg g−1 for Mo6+. Furthermore, optimal pH, adsorption times qt, and C0 were studied for the evaluation of kinetic models and adsorption isotherms. Finally, a proposal for adsorbate-adsorbent interactions is presented as a possible capture mechanism where, in the case of Mo6+, a computational study is presented. The results demonstrate the potential to evaluate the fibers in tailings wastewater from copper mining. |
Patrocinador/es: | E. Lopez acknowledges the financial support of this project by ANID-Subdirección de Capital Humano, Doctorado Nacional 2020 Grant No. 21210508 and Vicerrectoría de Postgrado - Universidad de Santiago de Chile. M. Gómez acknowledges ANID-Fondecyt Postdoctoral Grant No. 3210179. C. Cárdenas acknowledges additional support through ANID-Fondecyt Grant No. 1220366 and support by Center for the Development of Nanosciences and Nanotechnology, CEDENNA AFB 220001. Powered@NLHPC: This research was partially supported by the supercomputing infrastructure of the NLHPC (ECM-02). P. Zapata acknowledges the financial support through ANID-Fondecyt Regular Grant No. 1220093. The authors would like to thank the Generalitat Valenciana (PROMETEO Project CIPROM/2021/70) for the financial support. M. Navlani-García would like to thank the grant RYC2021-034199-I funded by MCIN/AEI/10.13039/501100011033 and by “ESF Investing in your future”. |
URI: | http://hdl.handle.net/10045/142759 |
ISSN: | 0141-8130 (Print) | 1879-0003 (Online) |
DOI: | 10.1016/j.ijbiomac.2024.132160 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2024 Elsevier B.V. |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1016/j.ijbiomac.2024.132160 |
Aparece en las colecciones: | INV - MCMA - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
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Lopez_etal_2024_IntJBiolMacromol_accepted.pdf | Embargo 12 meses (acceso abierto: 8 mayo 2025) | 3,1 MB | Adobe PDF | Abrir Solicitar una copia |
Lopez_etal_2024_IntJBiolMacromol_final.pdf | Versión final (acceso restringido) | 9,74 MB | Adobe PDF | Abrir Solicitar una copia |
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