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Artículo

Continuous flow adsorption of ciprofloxacin by using a nanostructured chitin/graphene oxide hybrid material

González, Joaquín AntonioIcon ; Bafico, Jonathan Germán; Villanueva, María EmiliaIcon ; Giorgieri, SergioIcon ; Copello, Guillermo Javier
Fecha de publicación: 06/05/2018
Editorial: Elsevier
Revista: Carbohydrate Polymers
ISSN: 0144-8617
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
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Resumen

A novel nanostructured material was successfully developed by combining a chitin matrix with graphene oxide nanosheets (Chi:nGO) and then used for the continuous flow adsorption of ciprofloxacin. The spectroscopic characterization indicated that none covalent interaction between both components would be occurring and the introduction of nGO did not interfere in chitin nanostructure rearrangement during gelling and later drying. SEM images and Mercury Intrusion Porosimetry results showed a wide pore size distribution ranging from nano to micrometers. The continuous flow adsorption was observed to be dependent on the pH which affects the electrostatic interaction. The flow rate, Na+ concentration and water hardness were evaluated to describe the adsorption process. The resistance to alkali allowed to regenerate and reuse the column for subsequent adsorption cycles. Finally, ciprofloxacin spiked real water samples were assessed and the results confirmed that the medium pH was the main parameter that defines the adsorption behavior.
Palabras clave: CHITIN , CONTINUOUS ADSORPTION , GRAPHENE OXIDE NANOSHEETS , NANOCOMPOSITE
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/87000
URL: https://www.sciencedirect.com/science/article/pii/S0144861718301590?via%3Dihub
DOI: http://dx.doi.org/10.1016/j.carbpol.2018.02.021
Colecciones
Articulos(IQUIMEFA)
Articulos de INST.QUIMICA Y METABOLISMO DEL FARMACO (I)
Citación
González, Joaquín Antonio; Bafico, Jonathan Germán; Villanueva, María Emilia; Giorgieri, Sergio; Copello, Guillermo Javier ; Continuous flow adsorption of ciprofloxacin by using a nanostructured chitin/graphene oxide hybrid material; Elsevier; Carbohydrate Polymers; 188; 6-5-2018; 213-220
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