Electrospun Cellulose Acetate Membranes Coated with Polypyrrole and Their Potential Application in the Recovery of Metals

[Image: see text] The purpose of this paper is to study the effect of polypyrrole (PPy) on cellulose acetate (CA) membranes prepared by the electrospinning technique (controlled variables) in the recovery of gold complexes of aqueous solutions that are environmentally ecofriendly. CA-PPy membranes w...

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Autores principales: Castillo-Ortega, María M., Hernández-Martínez, Diego, Santos-Sauceda, Irela, Plascencia-Martínez, Damián F., Alvarado-Ibarra, Juana, Cabellos-Quiroz, José L., Cornejo-Ramírez, Yaeel I.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2022
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9453961/
https://www.ncbi.nlm.nih.gov/pubmed/36092557
http://dx.doi.org/10.1021/acsomega.2c03129
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author Castillo-Ortega, María M.
Hernández-Martínez, Diego
Santos-Sauceda, Irela
Plascencia-Martínez, Damián F.
Alvarado-Ibarra, Juana
Cabellos-Quiroz, José L.
Cornejo-Ramírez, Yaeel I.
author_facet Castillo-Ortega, María M.
Hernández-Martínez, Diego
Santos-Sauceda, Irela
Plascencia-Martínez, Damián F.
Alvarado-Ibarra, Juana
Cabellos-Quiroz, José L.
Cornejo-Ramírez, Yaeel I.
author_sort Castillo-Ortega, María M.
collection PubMed
description [Image: see text] The purpose of this paper is to study the effect of polypyrrole (PPy) on cellulose acetate (CA) membranes prepared by the electrospinning technique (controlled variables) in the recovery of gold complexes of aqueous solutions that are environmentally ecofriendly. CA-PPy membranes were characterized by SEM, EDS, FTIR spectroscopy, contact angle measurements, electrical conductivity, and mechanical tests. They were submerged in two aqueous solutions using two gold complexes, AuI(2)(–) and AuBr(4)(–), at room temperature. The recovery percentage was evaluated for several hours using the atomic adsorption technique for both complexes. The main findings indicate that the percentage of recovery in the first hours of the test was very high (>80%). The adsorption efficiency maxima were similar for both complexes (91%). The Langmuir model suggests the formation of a monolayer on the surface. The electrical conductivity did not change over time, and the mechanical properties indicate reuse in several experiments. Furthermore, the theoretical analysis showed that the system is helpful at acidic pH, funding its minimum energy. It is shown in this study that the used CA-PPy membranes show adsorption, absorption, and reusable properties with the effective recovery of the complexes in the first hours. These membranes could substitute for materials that are not environmentally ecofriendly.
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spelling pubmed-94539612022-09-09 Electrospun Cellulose Acetate Membranes Coated with Polypyrrole and Their Potential Application in the Recovery of Metals Castillo-Ortega, María M. Hernández-Martínez, Diego Santos-Sauceda, Irela Plascencia-Martínez, Damián F. Alvarado-Ibarra, Juana Cabellos-Quiroz, José L. Cornejo-Ramírez, Yaeel I. ACS Omega [Image: see text] The purpose of this paper is to study the effect of polypyrrole (PPy) on cellulose acetate (CA) membranes prepared by the electrospinning technique (controlled variables) in the recovery of gold complexes of aqueous solutions that are environmentally ecofriendly. CA-PPy membranes were characterized by SEM, EDS, FTIR spectroscopy, contact angle measurements, electrical conductivity, and mechanical tests. They were submerged in two aqueous solutions using two gold complexes, AuI(2)(–) and AuBr(4)(–), at room temperature. The recovery percentage was evaluated for several hours using the atomic adsorption technique for both complexes. The main findings indicate that the percentage of recovery in the first hours of the test was very high (>80%). The adsorption efficiency maxima were similar for both complexes (91%). The Langmuir model suggests the formation of a monolayer on the surface. The electrical conductivity did not change over time, and the mechanical properties indicate reuse in several experiments. Furthermore, the theoretical analysis showed that the system is helpful at acidic pH, funding its minimum energy. It is shown in this study that the used CA-PPy membranes show adsorption, absorption, and reusable properties with the effective recovery of the complexes in the first hours. These membranes could substitute for materials that are not environmentally ecofriendly. American Chemical Society 2022-08-23 /pmc/articles/PMC9453961/ /pubmed/36092557 http://dx.doi.org/10.1021/acsomega.2c03129 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Castillo-Ortega, María M.
Hernández-Martínez, Diego
Santos-Sauceda, Irela
Plascencia-Martínez, Damián F.
Alvarado-Ibarra, Juana
Cabellos-Quiroz, José L.
Cornejo-Ramírez, Yaeel I.
Electrospun Cellulose Acetate Membranes Coated with Polypyrrole and Their Potential Application in the Recovery of Metals
title Electrospun Cellulose Acetate Membranes Coated with Polypyrrole and Their Potential Application in the Recovery of Metals
title_full Electrospun Cellulose Acetate Membranes Coated with Polypyrrole and Their Potential Application in the Recovery of Metals
title_fullStr Electrospun Cellulose Acetate Membranes Coated with Polypyrrole and Their Potential Application in the Recovery of Metals
title_full_unstemmed Electrospun Cellulose Acetate Membranes Coated with Polypyrrole and Their Potential Application in the Recovery of Metals
title_short Electrospun Cellulose Acetate Membranes Coated with Polypyrrole and Their Potential Application in the Recovery of Metals
title_sort electrospun cellulose acetate membranes coated with polypyrrole and their potential application in the recovery of metals
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9453961/
https://www.ncbi.nlm.nih.gov/pubmed/36092557
http://dx.doi.org/10.1021/acsomega.2c03129
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