NANO-BIOLOGICAL MODIFICATION OF THE ELECTRODES IN MICROBIAL FUEL CELL

作者:Sadri Farzad; Khodavandi Alireza; Shamsazar Ali; Negandary Masoud; Rahimi Ghasem*
来源:Fresenius Environmental Bulletin, 2017, 26(7): 4561-4567.

摘要

Recently, renewable energy with the ability to replace traditional energy such as fossil fuels, has attracted the attention of many researchers. In this study, the amount of the produced electricity in the presence of modified graphite electrode with biological synthesized silver nano particles was evaluated. In the first stage microbial fuel cell (MFC) system was designed; subsequently, synthesized silver NPs through biological method and their properties were investigated using UV-vis spectroscopy, Fourier transform infrared spectroscopy (FTIR) and particle size analysis (PSA). Scanning electron microscope (SEM) was used for exploring the modified electrodes with silver NPs and valid modification status. Eventually, the modified graphite electrode with used NPs and the amount of produced electricity in the presence of electrodes were evaluated. Our results showed that the modified graphite electrode with NPs has high potential for electricity generation that was more than bare graphite electrode. Indeed, the generated maximum power and current density for bare graphite electrode were 82 mW/m(-3) and 1100 mA/m(-3) respectively but the generated maximum power and current density for modified electrode with silver NPs were 160 mW/m(-3) and 1400 mA/m(-3) respectively.

  • 出版日期2017