Combination of a novel electrode material and artificial mediators to enhance power generation in an MFC

Taskan E., Ozkaya B., Hasar H.

WATER SCIENCE AND TECHNOLOGY, vol.71, no.3, pp.320-328, 2015 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 71 Issue: 3
  • Publication Date: 2015
  • Doi Number: 10.2166/wst.2014.487
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.320-328
  • Keywords: microbial fuel cell, mediator, power output, internal resistance, MICROBIAL FUEL-CELLS, ELECTRICITY-GENERATION, METHYLENE-BLUE, NEUTRAL RED, PERFORMANCE, ANODE
  • Yıldız Technical University Affiliated: Yes


This study focuses on two main aspects: developing a novel cost-effective electrode material and power production from domestic wastewater using three different mediators. Methylene blue (MB), neutral red (NR) and 2-hydroxy-1,4-naphthoquinone (HNQ) were selected as electrode mediators with different concentrations. A tin-coated copper mesh electrode was tested as anode electrode. Maximum power density of the microbial fuel cell (MFC) with 300 mu M MB was 636 mW/m(2). Optimal mediator concentrations with respect to the achieved maximum power output for MB, NR and HNQ were 300 mu M, 200 mu M and 50 mu M, respectively. The results demonstrate that tin-coated copper mesh showed a higher biocompatibility and electrical conductivity.