PVDF-Modified Nafion Membrane for Improved Performance of MFC
Low power production and unstable power supply are important bottlenecks restricting the application of microbial fuel cells (MFCs). It is necessary to explore effective methods to improve MFC performance. By using molasses wastewater as fuel, carbon felt as an electrode, and the mixture of K<sub...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-08-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/10/8/185 |
| _version_ | 1797558265719029760 |
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| author | Liping Fan Junyi Shi Yaobin Xi |
| author_facet | Liping Fan Junyi Shi Yaobin Xi |
| author_sort | Liping Fan |
| collection | DOAJ |
| description | Low power production and unstable power supply are important bottlenecks restricting the application of microbial fuel cells (MFCs). It is necessary to explore effective methods to improve MFC performance. By using molasses wastewater as fuel, carbon felt as an electrode, and the mixture of K<sub>3</sub>[Fe(CN)<sub>6</sub>] and NaCl as a catholyte, an MFC experimental system was set up to study the performance of MFCs with three different proton exchange membranes. A Nafion membrane was used as the basic material, and polyvinylidene fluoride (PVDF) and acetone-modified PVDF were used to modify it, respectively. The experimental results show that a PVDF-modified membrane can improve the water absorption effectively and, thus, make the MFC have greater power generation and better wastewater treatment effect. The acetone-modified PVDF can further improve the stability of output power of the MFC. When the acetone-modified PVDF was used to modify the Nafion membrane, the steady output voltage of the MFC was above 0.21 V, and the Chemical Oxygen Demand (COD) removal rate for molasses wastewater was about 66.7%, which were 96.3% and 75.1% higher than that of the MFC with the ordinary Nafion membrane. Membrane modification with acetone-modified PVDF can not only increase the output voltage of the MFC but also improve the stability of its output electrical energy. |
| first_indexed | 2024-03-10T17:28:52Z |
| format | Article |
| id | doaj.art-d4d4d83daf3840eb87f99359683f85b5 |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-10T17:28:52Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-d4d4d83daf3840eb87f99359683f85b52023-11-20T10:06:29ZengMDPI AGMembranes2077-03752020-08-0110818510.3390/membranes10080185PVDF-Modified Nafion Membrane for Improved Performance of MFCLiping Fan0Junyi Shi1Yaobin Xi2College of Information Engineering, Shenyang University of Chemical Technology, Shenyang 110142, ChinaCollege of Environment and Safety Engineering, Shenyang University of Chemical Technology, Shenyang 110142, ChinaCollege of Environment and Safety Engineering, Shenyang University of Chemical Technology, Shenyang 110142, ChinaLow power production and unstable power supply are important bottlenecks restricting the application of microbial fuel cells (MFCs). It is necessary to explore effective methods to improve MFC performance. By using molasses wastewater as fuel, carbon felt as an electrode, and the mixture of K<sub>3</sub>[Fe(CN)<sub>6</sub>] and NaCl as a catholyte, an MFC experimental system was set up to study the performance of MFCs with three different proton exchange membranes. A Nafion membrane was used as the basic material, and polyvinylidene fluoride (PVDF) and acetone-modified PVDF were used to modify it, respectively. The experimental results show that a PVDF-modified membrane can improve the water absorption effectively and, thus, make the MFC have greater power generation and better wastewater treatment effect. The acetone-modified PVDF can further improve the stability of output power of the MFC. When the acetone-modified PVDF was used to modify the Nafion membrane, the steady output voltage of the MFC was above 0.21 V, and the Chemical Oxygen Demand (COD) removal rate for molasses wastewater was about 66.7%, which were 96.3% and 75.1% higher than that of the MFC with the ordinary Nafion membrane. Membrane modification with acetone-modified PVDF can not only increase the output voltage of the MFC but also improve the stability of its output electrical energy.https://www.mdpi.com/2077-0375/10/8/185microbial fuel cellsmembrane modificationPVDFacetone |
| spellingShingle | Liping Fan Junyi Shi Yaobin Xi PVDF-Modified Nafion Membrane for Improved Performance of MFC Membranes microbial fuel cells membrane modification PVDF acetone |
| title | PVDF-Modified Nafion Membrane for Improved Performance of MFC |
| title_full | PVDF-Modified Nafion Membrane for Improved Performance of MFC |
| title_fullStr | PVDF-Modified Nafion Membrane for Improved Performance of MFC |
| title_full_unstemmed | PVDF-Modified Nafion Membrane for Improved Performance of MFC |
| title_short | PVDF-Modified Nafion Membrane for Improved Performance of MFC |
| title_sort | pvdf modified nafion membrane for improved performance of mfc |
| topic | microbial fuel cells membrane modification PVDF acetone |
| url | https://www.mdpi.com/2077-0375/10/8/185 |
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