음극 전극 표면적과 메틸렌블루 염색이 스펀지 탄소나노 튜브 전극 미생물 연료전지의 전력수율에 미치는 영향

Abstract

Anode electrode is one of the most important factors in microbial fuel cell (MFC). This study was conducted to investigate the effects of mediator as methylene blue (MB) and electrode surface area on the power density of MFC with sponge and carbon nano tube (CNT) electrode (SC). The SC electrode with MB (MC) showed the maximum power density increased from 74.0 mW/m2 to 143.1 mW/m2. The grid shaped sponge and CNT (GSC) electrode showed the maximum power density of 209.2 mW/m2 due to the increase of surface area from 88.0 to 152.0 cm2. The GSC electrode with MB (GMC) revealed the maximum power density of 384.9 mW/m2 which was 5.2 times higher than that obtained from the MFC with SC. Therefore MB and increase of surface area led to enhance the performance of microbial fuel cell such as power density.