Del Río García, AI.; García-Albert, C.; Molina Puerto, J.; Fernández Sáez, J.; Bonastre Cano, JA.; Cases Iborra, FJ. (2017). On the behavior of reduced graphene oxide based electrodes coated with dispersed platinum by alternate current methods in the electrochemical degradation of reactive dyes. Chemosphere. 183:242-251. doi:10.1016/j.chemosphere.2017.05.121
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/84325
Title:
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On the behavior of reduced graphene oxide based electrodes coated with dispersed platinum by alternate current methods in the electrochemical degradation of reactive dyes
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Author:
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Del Río García, Ana Isabel
García-Albert, Carolina
Molina Puerto, Javier
Fernández Sáez, Javier
Bonastre Cano, José Antonio
Cases Iborra, Francisco Javier
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UPV Unit:
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Universitat Politècnica de València. Departamento de Ingeniería Textil y Papelera - Departament d'Enginyeria Tèxtil i Paperera
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Issued date:
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Abstract:
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The electrochemical behavior of different carbon-based electrodes with and without nanoparticles of platinum electrochemically dispersed on their surface has been studied. Among others, reduced graphene oxide based electrodes ...[+]
The electrochemical behavior of different carbon-based electrodes with and without nanoparticles of platinum electrochemically dispersed on their surface has been studied. Among others, reduced graphene oxide based electrodes was used to determine the best conditions for the decolorization/degradation of the reactive dye C.I. Reactive Orange 4 in sulfuric medium. Firstly, the electrochemical behavior was evaluated by cyclic voltammetry. Secondly, different electrolyses were performed using two cell configurations: cell with anodic and cathodic compartments separated (divided configuration) and without any separation (undivided configuration). The best results were obtained when reduced graphene oxide based anodes were used. The degree of decolorization was monitored by spectroscopic methods and high performance liquid chromatography. It was found that all of them followed pseudofirst order kinetics. When reduced graphene oxide-based electrodes coated with dispersed platinum by alternate current methods electrodes were used, the lowest energy consumption and the higher decolorization kinetics rate were obtained. Scanning Electronic Microscopy was used to observe the morphological surface differences.
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Subjects:
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Reduced graphene oxide
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Dispersed platinum
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Alternate current methods
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Reactive dye
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Electrochemical treatment
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Copyrigths:
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Reserva de todos los derechos
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Source:
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Chemosphere. (issn:
0045-6535
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DOI:
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10.1016/j.chemosphere.2017.05.121
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Publisher:
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Elsevier
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Publisher version:
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http://dx.doi.org/10.1016/j.chemosphere.2017.05.121
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Project ID:
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Spanish Ministerio de Ciencia e Innovacion/MAT2016-77742-C2-1-P
Conselleria d'Educacio, Formacio i Ocupacio (Generalitat Valenciana)/APOSTD/2013/056
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Thanks:
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The authors wish to thank the Spanish Agencia Estatal de Investigacion (AEI) and European Union (FEDER funds) for the financial support (contract MAT2016-77742-C2-1-P). A.I. del Rio is grateful to the Spanish Ministerio ...[+]
The authors wish to thank the Spanish Agencia Estatal de Investigacion (AEI) and European Union (FEDER funds) for the financial support (contract MAT2016-77742-C2-1-P). A.I. del Rio is grateful to the Spanish Ministerio de Ciencia y Tecnologia for her FPI fellowship. J. Molina is grateful to the Conselleria d'Educacio, Formacio i Ocupacio (Generalitat Valenciana) for the Programa VALi+D Postdoctoral Fellowship (APOSTD/2013/056). C. Garcia is grateful to the Conselleria d'Educacio, Formacio I Ocupacio (Generalitat Valenciana) for her Geronimo Forteza fellowship. The authors wish to acknowledge to Chemviron Carbon who kindly donated the 265 ZORFLEX (R) activated carbon fabric.
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Type:
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Artículo
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