Continuous flow adsorption of ciprofloxacin by using a nanostructured chitin/graphene oxide hybrid material
| Autor: | Guillermo Javier Copello, Joaquín Antonio González, María Emilia Villanueva, Sergio A. Giorgieri, Jonathan Germán Bafico |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Nanostructure
Materials science Polymers and Plastics Oxide Chitin 02 engineering and technology 010501 environmental sciences NANOCOMPOSITE 01 natural sciences Nanocomposites Water Purification law.invention purl.org/becyt/ford/1 [https] Matrix (chemical analysis) chemistry.chemical_compound Adsorption Ciprofloxacin law Nano purl.org/becyt/ford/1.4 [https] Materials Chemistry 0105 earth and related environmental sciences Nanocomposite Graphene Otras Ciencias Químicas Organic Chemistry Ciencias Químicas GRAPHENE OXIDE NANOSHEETS 021001 nanoscience & nanotechnology chemistry Chemical engineering CONTINUOUS ADSORPTION Graphite CHITIN 0210 nano-technology Hybrid material CIENCIAS NATURALES Y EXACTAS Water Pollutants Chemical |
| Zdroj: | CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET |
| ISSN: | 0144-8617 |
| Popis: | 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. Fil: González, Joaquín Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Metabolismo del Fármaco. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Metabolismo del Fármaco; Argentina Fil: Bafico, Jonathan Germán. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica. Cátedra de Química Analítica Instrumental; Argentina Fil: Villanueva, María Emilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Metabolismo del Fármaco. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Metabolismo del Fármaco; Argentina Fil: Giorgieri, Sergio. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica. Cátedra de Química Analítica Instrumental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Copello, Guillermo Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Metabolismo del Fármaco. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Metabolismo del Fármaco; Argentina |
| Databáze: | OpenAIRE |
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