Evaluation of Activated Carbon Electrodes as Anodes in a Microbial Fuel Cell Using Shewanella Putrefaciens
In this work, three types of activated carbons were evaluated as electrodes in the anode chamber of a two-chamber microbial fuel cell (MFC). The evaluation was applied using a pure Shewanella Putrefaciens culture due to its gram-negative characteristics. In the cathode chamber, a platinum electrode...
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| Format: | Online |
| Language: | eng spa |
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Universidad Pedagógica y Tecnológica de Colombia
2020
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| Online Access: | https://revistas.uptc.edu.co/index.php/ingenieria/article/view/10468 |
| _version_ | 1801706086023036928 |
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| author | Vanegas-Hernández, Diana Marcela Cardona-Aristizabal, Mónica Liliana Zapata-Benabithe, Zulamita |
| author_facet | Vanegas-Hernández, Diana Marcela Cardona-Aristizabal, Mónica Liliana Zapata-Benabithe, Zulamita |
| author_sort | Vanegas-Hernández, Diana Marcela |
| collection | OJS |
| description | In this work, three types of activated carbons were evaluated as electrodes in the anode chamber of a two-chamber microbial fuel cell (MFC). The evaluation was applied using a pure Shewanella Putrefaciens culture due to its gram-negative characteristics. In the cathode chamber, a platinum electrode was used, and a Nafion® 117 proton exchange membrane was selected as a separator of both chambers. The activated carbons were obtained from different precursors (coffee husk, commercial coal, and mineral coal), with different microporous and surface properties. From the voltage and current measurements, it was found that the cell power values varied between 0.008 mW and 0.045 mW. The electrode obtained from chemical activation of coffee husk with H3PO4 at 450 °C (Q) showed the best electrochemical behaviour and highest power values. This result may be mainly related to the macroscopic morphology and mesopores that improve the wettability of the surface by the medium thought carbonaceous material. SEM images showed a better biofilm formation, larger filaments of the bacteria, and micro-beds formation over the surface of bio-anode Q, which improved the interaction with the microorganism, its metabolism, and electrons extracellular transfer. Therefore, activated carbon from coffee husk could be considered as a promising material for electrodes of microbial fuel cells. |
| format | Online |
| id | oai:oai.revistas.uptc.edu.co:article-10468 |
| institution | Revista Facultad de Ingeniería |
| language | eng spa |
| publishDate | 2020 |
| publisher | Universidad Pedagógica y Tecnológica de Colombia |
| record_format | ojs |
| spelling | oai:oai.revistas.uptc.edu.co:article-104682022-06-15T15:57:54Z Evaluation of Activated Carbon Electrodes as Anodes in a Microbial Fuel Cell Using Shewanella Putrefaciens Evaluación de electrodos de carbón activado como ánodos de una celda de combustible microbiana usando Shewanella Putrefaciens Vanegas-Hernández, Diana Marcela Cardona-Aristizabal, Mónica Liliana Zapata-Benabithe, Zulamita activated carbon anodic chamber carbonaceous materials mediators microorganism Shewanella Putrefaciens two chambers cells cámara anódica carbón activado celdas dos cámaras materiales carbonosos microorganismos mediadores Shewanella Putrefaciens In this work, three types of activated carbons were evaluated as electrodes in the anode chamber of a two-chamber microbial fuel cell (MFC). The evaluation was applied using a pure Shewanella Putrefaciens culture due to its gram-negative characteristics. In the cathode chamber, a platinum electrode was used, and a Nafion® 117 proton exchange membrane was selected as a separator of both chambers. The activated carbons were obtained from different precursors (coffee husk, commercial coal, and mineral coal), with different microporous and surface properties. From the voltage and current measurements, it was found that the cell power values varied between 0.008 mW and 0.045 mW. The electrode obtained from chemical activation of coffee husk with H3PO4 at 450 °C (Q) showed the best electrochemical behaviour and highest power values. This result may be mainly related to the macroscopic morphology and mesopores that improve the wettability of the surface by the medium thought carbonaceous material. SEM images showed a better biofilm formation, larger filaments of the bacteria, and micro-beds formation over the surface of bio-anode Q, which improved the interaction with the microorganism, its metabolism, and electrons extracellular transfer. Therefore, activated carbon from coffee husk could be considered as a promising material for electrodes of microbial fuel cells. En este trabajo se evaluaron tres tipos de carbones activados como electrodos en la cámara anódica de una celda de combustible microbiana (MFC) de dos cámaras. Se utilizó un cultivo de Shewanella putrefaciens puro debido a sus características gran-negativa. En la cámara catódica se utilizó un electrodo de platino y Nafion® 117 como membrana de intercambio de protones para separar las dos cámaras. Los carbones activados seleccionados presentaron diferentes precursores (cisco de café, carbón comercial, y carbón mineral), con diferentes morfologías y propiedades porosas y superficiales. A partir de las mediciones de voltaje y corriente se encontró que los valores de potencia de la celda variaron entre 0.008 mW y 0.045 mW. El electrodo preparado utilizando carbón activado a partir de cisco de café (Q) presentó el mejor comportamiento electroquímico y valores de potencia más altos; este carbón se obtuvo a partir de la activación de cisco de café con H3PO4 a 450 °C. La morfología macroscópica de este carbón activado permitió una mejor migración del medio de cultivo acuoso hacia los macroporos y posteriormente mesoporos que mejoran la mojabilidad de la superficie. Las microfotografías SEM mostraron una mejor formación de la biopelícula, filamentos más largos de la bacteria y la formación de microlechos en el bio-ánodo Q, que favoreció la interacción con el microorganismo, facilitando su metabolismo y la transferencia extracelular de electrones. Por tal motivo, el carbón activado a partir de cisco de café podría ser considerado como un material prometedor para su implementación como electrodos en celdas de combustible microbiana. Universidad Pedagógica y Tecnológica de Colombia 2020-05-13 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf application/pdf application/xml https://revistas.uptc.edu.co/index.php/ingenieria/article/view/10468 10.19053/01211129.v29.n54.2020.10468 Revista Facultad de Ingeniería; Vol. 29 No. 54 (2020): Continuos Publication; e10468 Revista Facultad de Ingeniería; Vol. 29 Núm. 54 (2020): Publicación Continua; e10468 2357-5328 0121-1129 eng spa https://revistas.uptc.edu.co/index.php/ingenieria/article/view/10468/9277 https://revistas.uptc.edu.co/index.php/ingenieria/article/view/10468/9278 https://revistas.uptc.edu.co/index.php/ingenieria/article/view/10468/9503 Copyright (c) 2020 Diana-Marcela Vanegas-Hernández; Mónica-Liliana Cardona-Aristizabal; Zulamita Zapata-Benabithe |
| spellingShingle | activated carbon anodic chamber carbonaceous materials mediators microorganism Shewanella Putrefaciens two chambers cells cámara anódica carbón activado celdas dos cámaras materiales carbonosos microorganismos mediadores Shewanella Putrefaciens Vanegas-Hernández, Diana Marcela Cardona-Aristizabal, Mónica Liliana Zapata-Benabithe, Zulamita Evaluation of Activated Carbon Electrodes as Anodes in a Microbial Fuel Cell Using Shewanella Putrefaciens |
| title | Evaluation of Activated Carbon Electrodes as Anodes in a Microbial Fuel Cell Using Shewanella Putrefaciens |
| title_alt | Evaluación de electrodos de carbón activado como ánodos de una celda de combustible microbiana usando Shewanella Putrefaciens |
| title_full | Evaluation of Activated Carbon Electrodes as Anodes in a Microbial Fuel Cell Using Shewanella Putrefaciens |
| title_fullStr | Evaluation of Activated Carbon Electrodes as Anodes in a Microbial Fuel Cell Using Shewanella Putrefaciens |
| title_full_unstemmed | Evaluation of Activated Carbon Electrodes as Anodes in a Microbial Fuel Cell Using Shewanella Putrefaciens |
| title_short | Evaluation of Activated Carbon Electrodes as Anodes in a Microbial Fuel Cell Using Shewanella Putrefaciens |
| title_sort | evaluation of activated carbon electrodes as anodes in a microbial fuel cell using shewanella putrefaciens |
| topic | activated carbon anodic chamber carbonaceous materials mediators microorganism Shewanella Putrefaciens two chambers cells cámara anódica carbón activado celdas dos cámaras materiales carbonosos microorganismos mediadores Shewanella Putrefaciens |
| topic_facet | activated carbon anodic chamber carbonaceous materials mediators microorganism Shewanella Putrefaciens two chambers cells cámara anódica carbón activado celdas dos cámaras materiales carbonosos microorganismos mediadores Shewanella Putrefaciens |
| url | https://revistas.uptc.edu.co/index.php/ingenieria/article/view/10468 |
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