本研究利用包含鐵參雜二氧化鈦奈米線和鉑/碳混合nafion的新穎觸媒，綠膿桿菌當作陽極菌源，來製作零偏壓太陽光驅動和Fenton增強效果的微生物燃料電池系統。經由Fenton反應生成的氫氧自由基(•OH)可以有效的增進微生物燃料電池產電。本研究利用鐵參雜二氧化鈦奈米線當作微生物燃料電池的陰極，Fenton反應的發生，使得微生物燃料電池的開路電壓由602mV增進到733mV，功率密度也從1952μW/m2增進到2986μW/m2。
接著，我們成功的讓太陽光驅動的微生物燃料電池在白光照明下產生的電流由5.4到6.1μA(外接400歐姆電阻)，在白光的照明下最大功率密度可以由2986增強到11140μW/m2，開路電壓可以由733增強到742mV。從以上的研究成果我們提供了一個利用鐵參雜的金紅石二氧化鈦奈米線結構或者其他可行的半導體材料，來減少貴金屬觸媒的使用進而減少燃料電池開發的成本，並且開啟了對於微生物與奈米微機電混合的元件獨特的應用，在能源轉換、環境保護以及生物醫學上研究的契機。

This study reports on zero bias, solar-driving and Fenton-enhanced microbial fuel cells(MFCs) that contain Fe-doped rutile TiO2 nanowires and Pt/C/nafion as a novel cathode catalyst. Pseudomonas aeruginosa was colonized as the anode. The hydroxyl radicals (•OH) produced via Fenton’s reaction promoted the generation of electricity in MFCs. The MFC containing Fe-doped TiO2 nanowires as a cathode stimulate the fenton reaction ; as a result, the open circuit potential can be enhanced from 602 to 733 mV and the maximum power density increased from 1952 to 2986 μW/m2.
In addition, a substantial current enhancement from 5.4 to 6.1μA in a solar-driving MFC device that is based on a photocathode (with a projected area of 1.747 cm2) at zero bias is demonstrated under illumination by white visible light 900 lux when the system is connected to a resistance of 400Ω. The maximum power density under illumination by white light was remarkably enhanced from 2986 to 11140μW/m2 and the open circuit potential was enhanced from 733 to 741 mV.
In conclusion, the results of this study show that rutile Fe-doped TiO2 nanowires, and other expected semiconductor materials may serve as cost-effective alternative catalysts to reduce the use of noble metals in MFC applications and create new opportunities for microbial/nanoelectronic hybrid devices in energy conversion, environmental protection, and biomedical application.

Chapter 1
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Chapter 2
Chapter 3
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Chapter 4