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, cilt.71, sa.3, ss.320-328, 2015 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 71 Sayı: 3
  • Basım Tarihi: 2015
  • Doi Numarası: 10.2166/wst.2014.487
  • Dergi Adı: WATER SCIENCE AND TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.320-328
  • Anahtar Kelimeler: microbial fuel cell, mediator, power output, internal resistance, MICROBIAL FUEL-CELLS, ELECTRICITY-GENERATION, METHYLENE-BLUE, NEUTRAL RED, PERFORMANCE, ANODE
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

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.