Ameliorating substance accessibility for microorganisms to amplify toluene degradation and power generation of microbial fuel cell by using activated carbon anode

Su, Fangcheng; Wang, Fang; Zhang, Changsen; Lu, Tonglu; Zhang, Shen; Zhang, Ruiqin; Qi, Xiang; Li, Panpan

doi:10.1016/j.jclepro.2022.134481

Cited by 15 publications

(4 citation statements)

References 30 publications

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“…Likewise, the 1404 cm −1 peak confirms the presence of the C-H, C=C, C==N, and C-N stretching belonging to the alkane, alkene, primary and secondary amine, respectively; finally, the 1052 cm −1 peak belongs to the C-H stretch of the alkane and the amide [48][49][50]. The decrease in the FTIR spectrum is mainly due to the decrease in the chemical components in the process of generating electrical energy by the microorganisms [51,52], as well as the degradation of the organic material that was observed in the last days of monitoring of the scMFC. Microorganisms consume carbon-rich compounds for their metabolism, this process causes electrons to be released and captured by the anode electrode and flow to the cathode, thus generating electric current [53].…”

Section: Results and Analysismentioning

confidence: 87%

Green Energy Generated in Single-Chamber Microbial Fuel Cells Using Tomato Waste

et al. 2023

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This research used tomato waste as a substrate (fuel) in Single Chamber-Microbial Fuel Cells (scMFC) on a small scale. The electrochemical properties were monitored, the functional groups of the substrate were analyzed by Fourier Transform Infrared Spectrophotometry (FTIR) and a microbiological analysis was performed on the electrodes in order to identify the microorganisms responsible for the electrochemical process. The results show voltage peaks and an electrical current of 3.647 ± 0.157 mA and 0.957 ± 0.246 V. A pH of 5.32 ± 0.26 was measured in the substrate with an electrical current conductivity of 148,701 ± 5849 mS/cm and an internal resistance (Rint) of 77. 517 ± 8.541 Ω. The maximum power density (PD) displayed was 264.72 ± 3.54 mW/cm2 at a current density (CD) of 4.388 A/cm2. On the other hand, the FTIR spectrum showed a more intense decrease in its peaks, with the compound belonging to the phenolic groups being the most affected at 3361 cm−1. The micrographs show the formation of a porous biofilm where molecular identification allowed the identification of two bacteria (Proteus vulgaris and Proteus vulgaris) and a yeast (Yarrowia lipolytica) with 100% identity. The data found show the potential of this waste as a source of fuel for the generation of an electric current in a sustainable and environmentally friendly way, generating in the near future a mechanism for the reuse of waste in a beneficial way for farmers, communities and agro-industrial companies.

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Section: Results and Analysismentioning

confidence: 87%

Green Energy Generated in Single-Chamber Microbial Fuel Cells Using Tomato Waste

et al. 2023

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“…To examine the morphology of the anodic biofilm, after 4 months of operation the anodes were conditioned with 4% glutaraldehyde solution for 4 h, followed by dehydration in different concentrations of ethanol solution (25%, 50%, 75%, and 100%) at room temperature, each for 15 min. 43 The air-dried anodes were coated with gold by sputtering and analysed by SEM.…”

Section: Methodsmentioning

confidence: 99%

“…Contact angle measurements (DataPhysics OCA 25) were taken to assess the hydrophobicity of the electrodes. To examine the morphology of the anodic biofilm, the several anodes after 4 months of operation were conditioned with 4% glutaraldehyde solution for 4 h, followed by dehydration in different concentrations of ethanol solution (25%, 50%, 75%, and 100%) at room temperature, each for 15 min43 . The air-dried anodes were coated with gold by sputtering and analysed by SEM.The electrochemical performance of the electrodes developed as the anode in an SMFC was investigated at different stages of batch operation by using Ag/AgCl as the reference electrode and the SMFC cathode (plain GF) as the counter electrode.…”

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confidence: 99%

Functionalised graphite felt anodes for enhanced power generation in membrane-less soil microbial fuel cells

et al. 2023

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“…Microbial fuel cell could remove toxic and harmful organic pollutants while generating clean and sustainable electricity. 10 However, the limited electric-generating properties hinders the development of MFCs. 11 It is very important to find high conductive and biocompatible anodes for improving charge transfer.…”

mentioning

confidence: 99%

High-Efficiency Degradation of Formaldehyde and Bioelectricity Generation by Microbial Fuel Cell

Gao,

Xue,

Wang

et al. 2023

J. Electrochem. Soc.

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Formaldehyde is a common organic pollutant in water with teratogenic and carcinogenic effects. This study reports that 200 mg/L formaldehyde in water can be effectively degraded with generating electricity by using microbial fuel cell (MFC) technology. A novel composite anode M-Co3O4-PEDOT-GF was prepared by modifying Co3O4 nanoparticles (M-Co3O4) derived from ZIF-67 and poly (3,4-ethylenedioxythiophene) (PEDOT) on the surface of Graphite felt (GF) . The results showed that the MFC loading M-Co3O4-PEDOT-GF anode exhibited excellent electricity generation performance and formaldehyde degradation. The maximum voltage of the MFC was 549 mV, 46.0% increase than that of GF anode (376 mV), and higher than N-Co3O4-PEDOT-GF anode (488 mV) modified with commercial Co3O4 (N-Co3O4). The maximum power density of the MFC loading composite anode was 4177 mW/m2, while that of MFC loading bare GF anode was 1562 mW/m2. The dominant microorganisms were Pseudomonadales and Rhizobiales at the order level. The removal efficiency of formaldehyde by MFC loading M-Co3O4-PEDOT-GF anode was 89.2% in 152 h. The high efficiency of formaldehyde degradation was still maintained after 10 cycles. The results could be attributed to the composite anode with loose porous three-dimensional structure and good biological compatibility of PEDOT.

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Ameliorating substance accessibility for microorganisms to amplify toluene degradation and power generation of microbial fuel cell by using activated carbon anode

Cited by 15 publications

References 30 publications

Green Energy Generated in Single-Chamber Microbial Fuel Cells Using Tomato Waste

Green Energy Generated in Single-Chamber Microbial Fuel Cells Using Tomato Waste

Functionalised graphite felt anodes for enhanced power generation in membrane-less soil microbial fuel cells

High-Efficiency Degradation of Formaldehyde and Bioelectricity Generation by Microbial Fuel Cell

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