ACS Sustainable Chemistry & Engineering, Год журнала: 2022, Номер 10(12), С. 3935 - 3950
Опубликована: Март 16, 2022
A nanomaterial–living cell biohybrid system is an efficient energy conversion method due to enhanced interactions between inorganic materials and bacteria. However, inefficient electron transfer at the interface of remains as a limiting factor. Herein, inorganic–biologic hybrid was proposed by combining typical electroactive bacterium, Geobacter sulfurreducens, highly conductive N-doped Fe3O4 with carbon dot shell (Fe3O4@CD) boost in bioelectrochemical systems (including microbial electrolytic cells electro-methanogenesis). One-pot-synthesized Fe3O4@CDs extracellular forming interaction network proteins inside outside G. sulfurreducens. In cell, maximum current Fe3O4@CDs-fed 6.37 times higher than that control group without nanoparticle addition. This performance accompanied bioactivity, cellular adhesion, lower biofilm resistance. The sulfurreducens–Fe3O4@CDs biohybrids supplemented during electro-methanogenesis remained stable on anodes, which promoted syntrophy. metabolic methanogenesis pathways are strongly related ability demonstrates new strategy promote through constructed system.
Язык: Английский