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Microbial fuel cell (MFC) is a kind of device, which can transform microbial metabolic energy into electric energy and simultaneously degrade the pollutants in wastewater by electrochemical technologies. Currently, the density of output power and efficiency are low and research of MFC is still in laboratory and in developing stage. In this paper, we design a kind of novel MFC system in which the semiconductor photocatalysis cooperating with the microbial catalysis is used by connecting photovoltaic cells to the traditional MFC systems in series. Thus we achieve a "photovoltaic cells-microbial cell" new MFC system. Experiments show that open-circuit voltage, short-circuit current and maximum output power density are greatly improved in the novel MFC system when the photovoltaic cells are exposed to the illumination. Photocatalysis of the semiconductor improves the reaction rate in the cathode chamber and the anode chamber, contributes part of power to runing the novel MFC system, and provides the basis for improving the pollutant degradation rate in wastewater. It is of great significance to solve the problem of energy crisis and environmental pollution.
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Keywords:
- microbial fuel cell (MFC) /
- silicon photovoltaic cells /
- photocatalysis /
- system of semiconductor cooperate with MFC
[1] Ark D H, Zeikus J G 2000 Applied and Environmental Microbiology 66 1292
[2] Logan B, Hamelers B, Rozendal R 2006 Environ. Sci. Technol. 40 5181
[3] Gratzel M 2001 Nature 414 338
[4] Stathatos E, Chen Y J, Dionysiou D D 2008 Solar Energy Materials and Solar Cells 92 1358
[5] Zhang D S, Yoshida T, Oekerma T, Furuta K, Minoura H 2006 Adv. Funct. Mater 16 1228
[6] Gratzel M 2003 Nature 421 586
[7] Andrew Mills, Stephen Le Hunte 1997 J. Photochemistry and Photobiology A: Chemistry 108 1
[8] Chae K J, Choi M J, Kim K Y 2009 Environ. Sci. Technol. 43 9525
[9] Yuan S J, Sheng G P, Li W W, Lin Z Q 2010 Environ. Sci. Technol. 44 5575
[10] Ding H R, Li Y, Lu A H 2009 Bioresource Technology 101 3500
[11] Qian F, Wang G M, Li Y 2010 Nano. Lett. 10 4686
[12] Li Y, Lu A H, Ding H R 2009 Electrochemistry Communications 11 1496
[13] Lu A H, Li Y, Song J 2010 Energy. Fuels. 24 1184
[14] Zou J J, Chang B K 2006 Opt. Eng. 45 054001
[15] Zou J J, Chang B K, Yang Z 2007 Acta Phys. Sin. 56 2992 (in Chinese) [邹继军, 常本康, 杨智 2007 物理学报 56 2992]
[16] Yang Z, Zou J J, Chang B K 2010 Acta Phys. Sin. 59 4290 (in Chinese) [杨智, 邹继军, 常本康 2010 物理学报 59 42902]
[17] Zou J J, Chang B K, Yang Z 2007 Acta Phys. Sin. 56 6109 (in Chinese) [邹继军, 常本康, 杨智 2007 物理学报 56 6109]
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[1] Ark D H, Zeikus J G 2000 Applied and Environmental Microbiology 66 1292
[2] Logan B, Hamelers B, Rozendal R 2006 Environ. Sci. Technol. 40 5181
[3] Gratzel M 2001 Nature 414 338
[4] Stathatos E, Chen Y J, Dionysiou D D 2008 Solar Energy Materials and Solar Cells 92 1358
[5] Zhang D S, Yoshida T, Oekerma T, Furuta K, Minoura H 2006 Adv. Funct. Mater 16 1228
[6] Gratzel M 2003 Nature 421 586
[7] Andrew Mills, Stephen Le Hunte 1997 J. Photochemistry and Photobiology A: Chemistry 108 1
[8] Chae K J, Choi M J, Kim K Y 2009 Environ. Sci. Technol. 43 9525
[9] Yuan S J, Sheng G P, Li W W, Lin Z Q 2010 Environ. Sci. Technol. 44 5575
[10] Ding H R, Li Y, Lu A H 2009 Bioresource Technology 101 3500
[11] Qian F, Wang G M, Li Y 2010 Nano. Lett. 10 4686
[12] Li Y, Lu A H, Ding H R 2009 Electrochemistry Communications 11 1496
[13] Lu A H, Li Y, Song J 2010 Energy. Fuels. 24 1184
[14] Zou J J, Chang B K 2006 Opt. Eng. 45 054001
[15] Zou J J, Chang B K, Yang Z 2007 Acta Phys. Sin. 56 2992 (in Chinese) [邹继军, 常本康, 杨智 2007 物理学报 56 2992]
[16] Yang Z, Zou J J, Chang B K 2010 Acta Phys. Sin. 59 4290 (in Chinese) [杨智, 邹继军, 常本康 2010 物理学报 59 42902]
[17] Zou J J, Chang B K, Yang Z 2007 Acta Phys. Sin. 56 6109 (in Chinese) [邹继军, 常本康, 杨智 2007 物理学报 56 6109]
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