Microbial fuel cell using ferrous ion activated persulfate as a cathodic reactant

Wang, Ying; Zeng, Guangming; Hu, Wenjuan; Huang, Da-Wei; Ruan, Min

doi:10.1016/j.ijhydene.2011.08.071

Cited by 17 publications

(12 citation statements)

References 30 publications

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“…A comparison of results with and without ferrous iron as a cathodic reactant also revealed that the addition of ferrous iron enhanced power generation in batch MFC (Wang et al, 2011). However, the knowledge related to the effects of ferrous iron on performances of MFCs and microbial communities of electrode biofilms is less known.…”

Section: Introductionmentioning

confidence: 98%

“…Ferrous iron used in catholyte of dual-chambered MFC enhanced power output by increasing salt concentration or improving cathode potential ( Ter Heijne et al, 2007 ). A comparison of results with and without ferrous iron as a cathodic reactant also revealed that the addition of ferrous iron enhanced power generation in batch MFC ( Wang et al, 2011 ). However, the knowledge related to the effects of ferrous iron on performances of MFCs and microbial communities of electrode biofilms is less known.…”

Section: Introductionmentioning

confidence: 98%

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Impact of Ferrous Iron on Microbial Community of the Biofilm in Microbial Fuel Cells

Liu

et al. 2017

Front. Microbiol.

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The performance of microbial electrochemical cells depends upon microbial community structure and metabolic activity of the electrode biofilms. Iron as a signal affects biofilm development and enrichment of exoelectrogenic bacteria. In this study, the effect of ferrous iron on microbial communities of the electrode biofilms in microbial fuel cells (MFCs) was investigated. Voltage production showed that ferrous iron of 100 μM facilitated MFC start-up compared to 150 μM, 200 μM, and without supplement of ferrous iron. However, higher concentration of ferrous iron had an inhibitive influence on current generation after 30 days of operation. Illumina Hiseq sequencing of 16S rRNA gene amplicons indicated that ferrous iron substantially changed microbial community structures of both anode and cathode biofilms. Principal component analysis showed that the response of microbial communities of the anode biofilms to higher concentration of ferrous iron was more sensitive. The majority of predominant populations of the anode biofilms in MFCs belonged to Geobacter, which was different from the populations of the cathode biofilms. An obvious shift of community structures of the cathode biofilms occurred after ferrous iron addition. This study implied that ferrous iron influenced the power output and microbial community of MFCs.

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 98%

Impact of Ferrous Iron on Microbial Community of the Biofilm in Microbial Fuel Cells

Liu

et al. 2017

Front. Microbiol.

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“…Recently, they have been widely popularized as a technology which involves microbial biochemical and respiratory systems to generate electricity, while utilizing a variety of substrates [4][5][6][7][8][9][10][11][12][13]. The typical MFC consists of two separate compartments containing the anode and the cathode.…”

Section: Introductionmentioning

confidence: 99%

Microbial fuel cell as a free-radical scavenging tool

Koleva

Yemendzhiev

Nenov

2017

Biotechnology & Biotechnological Equipment

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Microbial fuel cells (MFCs) are known for their capability to directly convert organic substrates into electricity by the biochemical activity of specific microorganisms. Availability of a proper terminal electron acceptor is crucial for this process. Free radicals, with their one or more unpaired electrons, are extremely reducible and could be considered as electron acceptors in terms of cathodic processes in MFC. During this reduction, free radicals could be transformed in the same manner as they are transformed by antioxidants. The present study investigated this opportunity by utilization of 2,2-diphenyl-1-picrylhydrazyl (150 mmol/dm 3 methanol solution) as a free-radical molecule. During the studied process, over 90% radical neutralization was observed in less than 16 hours. The results obtained demonstrate for the first time the potential of MFC type bioelectrochemical systems to serve as a free-radical scavenging tool and to provide antioxidant and anti-radical activity. In this way, this study opens a completely new field of research and application of bio-electrochemical systems.

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“…In recent decades, a number of target networks have been constructed by suitable choices of metals and ligands to enhance physical capabilities successfully [2]. Still, molecular self-assemble in crystal engineering often depends on various decisive factors, such as subtle interplay of intermolecular interactions [3], different reaction solvents [4], molar ratio of reactants [5], and acid/base properties of donor-acceptor [6]. Among these, the solvent factor is generally considered as a secondary factor to the nature of bridging donor atoms.…”

mentioning

confidence: 99%

“…In our previous work, through varying the volume ratio of mixed solvent, we obtained two distinct polymers {[Pb 6 (2,6-pda) 6 ]·H 2 O} n (2,6-pda = 2,6-pyridyldicarboxylate) and [Pb(mpcp)(OAc)] n (mpcp = methyl-6-(pyridin-2-ylcarbamoyl)picolinate) by reaction of PbAc 2 and 2,6-dicarboxamide-(2-pyridyl)-pyridine (H 2 dcapp), but H 2 dcapp was unforeseen decomposing through lead-induced hydrolysis [13]. To further investigate the effect of solvent factor on the selfassembly process of Pb II complexes, in this work, a novel discrete hexanuclear cage [Pb 6 (btapca) 6 ]·(H 2 O) 2 (1) and a 1D doublechain [Pb 2 (btapca) 2 (H 2 O) 2 ] n (2) were obtained via the reaction of PbAc 2 with H 2 btapca (H 2 btapca = N,N′-bis(1,3,4-thiobiazolyl)-2,6-pyridyldicarboxamide) under the different ratios of mixed reaction solvents.…”

mentioning

confidence: 99%

0D and 1D PbII complexes constructed from pyridyldicarboxamide by varying the ratios of mixed solvent

Zhang

Liu

et al. 2014

Inorganic Chemistry Communications

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Microbial fuel cell using ferrous ion activated persulfate as a cathodic reactant

Cited by 17 publications

References 30 publications

Impact of Ferrous Iron on Microbial Community of the Biofilm in Microbial Fuel Cells

Impact of Ferrous Iron on Microbial Community of the Biofilm in Microbial Fuel Cells

Microbial fuel cell as a free-radical scavenging tool

0D and 1D PbII complexes constructed from pyridyldicarboxamide by varying the ratios of mixed solvent

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