Ibuprofen degradation and energy generation in a microbial fuel cell using a bioanode fabricated from devil fish bone char

Miguel Mauricio Aguilera Flores, Verónica Ávila Vázquez, Nahum Andrés Medellín Castillo, Candy Carranza Álvarez, Antonio Cardona Benavides, Raul Ocampo Pérez, Gladis Judith Labrada Delgado, Sergio Miguel Durón Torres

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Ibuprofen degradation and energy generation in a single-chamber Microbial Fuel Cell (MFC) were evaluated using a bioanode fabricated from devil fish bone char (BCA) synthesized by calcination in air atmosphere. Its performance was compared with conventional carbon felt (CF). Bone char textural properties were determined by nitrogen adsorption. Before and after, the bacterial colonization on the materials was analyzed by environmental scanning electron microscopy. Energy generation was evaluated by electrochemical techniques as open-circuit potential, linear sweep voltammetry, and electrochemical impedance spectroscopy. Ibuprofen degradation was analyzed by High-Performance Liquid Chromatography-Ultraviolet, and the chemical oxygen demand (COD) removal was measured. Results showed a specific area of 136 m2/g for BCA, having enough space to immobilize microorganisms. The micrographs confirmed the biofilm formation on the electrode materials. Over the 14 days, MFC with BCA reached a maximum power density of 4.26 mW/m2, 175% higher than CF, and an electron transfer resistance 2.1 times lower than it. This coincides with the COD removal and ibuprofen degradation efficiencies, which were 43.6% and 34% for BCA and 31.8% and 27% for CF. Hence, these findings confirmed that BCA in MFC could provide an alternative electrode material for ibuprofen degradation and energy generation.

Original languageEnglish
Pages (from-to)874-885
Number of pages12
JournalJournal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
Volume56
Issue number8
DOIs
StatePublished - 2021

Keywords

  • COD removal
  • energy generation
  • ibuprofen degradation
  • maximum power density
  • MFC technology

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