Publicación:
Modificación superficial de fieltro de grafito con nanopartículas de magnetita Fe3O4 para su uso en un sistema electro-Fenton

No hay miniatura disponible
Fecha
2019
Autores
Calderón Zavaleta, Sandy Luz
Título de la revista
Revista ISSN
Título del volumen
Editor
Pontificia Universidad Católica del Perú
Proyectos de investigación
Unidades organizativas
Número de la revista
Abstracto
In this work, an electro-Fenton system was manufactured for the degradation of aromatic-type contaminants in aqueous pollutants and the simultaneous generation of electrical energy. The system consisted in two chambers (anode and cathode) separated by a Nafion membrane. The electrical energy was generated by anodic oxidation of glucose catalyzed by gold. The cathode was made of graphite felt modified on its surface with magnetite nanoparticles (Fe3O4NPs/GFoxi). The magnetite nanoparticles were impregnated on graphite felt by means of a layer-by-layer self-assembled method that uses polydiallyldimethylammonium chloride (PDDA) as a polyelectrolyte. In the anodic chamber, a graphite felt surface modified with gold nanoparticles (AuNPs/GF) was used. The nanoparticles were deposited on the surface of this electrode by electrochemical deposition. The electro-Fenton system generated an average output power of 550 mW m-2, which served as a power supply for carry out pollutant degradation process. This system led to the degradation of 0.35 mmol L-1 of hydrogen potassium phthalate (model pollutant) attaining 73.7% of COD decay during 23 h of treatment at pH 3.
Descripción
Finalmente, quisiera agradecer al Consejo Nacional de Ciencia, Tecnología e Innovación (CONCYTEC) y FONDECYT, convenio 231-2015, quienes brindaron el soporte económico de la investigación y permitieron la presentación de este trabajo en el Americas International Meeting on Electrochemistry and Solid State Science (AIMES 2018) realizado en México.
Palabras clave
Soluciones (Química), Nanopartículas, Contaminantes, Electroquímica
Citación
URI
https://hdl.handle.net/20.500.12390/1390
Colecciones
1.1 Eventos institucionales
 2.2 Estudios de maestría