Methylene blue as electron promoters in microbial fuel cell

Rahimnejad, Mostafa; Najafpour, Ghasem; Ghoreyshi, Ali Asghar; Shakeri, Mohsen; Zare, Hossein

doi:10.1016/j.ijhydene.2011.07.059

Cited by 94 publications

(39 citation statements)

References 43 publications

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“…The dark blue color shows the MB adsorption by the membrane surface during operation. The phenomenon of fouling by MB was also observed by Rahimnejad et al (2011) in the MFC research using a Nafion 117 membrane. Figure 6 Photographic image of the AEM: (a) after being used in the anode chamber without methylene blue; and (b) with MB.…”

Section: Effect Of Mb Addition On Desalination Performancementioning

confidence: 64%

“…The addition of redox mediators has been widely tested on the MFC system, but their use in the MDC has not been well explored. MB was chosen because of its biocompatibility, relatively cheap price, easy obtainability, and wide usage in MFC research with positive results (Permana et al, 2013;Rahimnejad et al, 2011;Taskan et al, 2014). Moreover, MB has an oxidized and reduced form which easily passes both in and out through a bacterial cell membrane, and another important factor is that MB is not absorbed by the cell wall or the electrode surface.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Methylene Blue Addition as a Redox Mediator on Performance of Microbial Desalination Cell by Utilizing Tempe Wastewater

Zuhri¹,

Arbianti²,

Utami³

et al. 2016

IJTech

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The microbial desalination cell (MDC) is a modification of the microbial fuel cell (MFC) system. The microbial desalination cell is a sustainable technology to desalinate saltwater by directly utilizing the electrical power generated by bacteria during the oxidation process of organic matter. In this study, tempe wastewater will be used as a substrate. Methylene blue (MB) at concentrations of 100 μM, 200 μM, and 400 μM in the anolyte is added as a redox mediator, and the effect on electricity production and desalination performance are evaluated. The average power density increases by 27.30% and 54.54% at MB concentrations of 100 μM and 200 μM, respectively. On the other hand, the increase of the MB concentration in the anolyte results in a decrease in the salt removal percentage. The observation made using a scanning electron microscope showed the presence of MB adsorption on the surface of the anion exchange membrane (AEM) and is suspected to be the cause of the disruption of anion transfer between MDC chambers causing a decrease in the salt removal percentage.

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Section: Effect Of Mb Addition On Desalination Performancementioning

confidence: 64%

Section: Introductionmentioning

confidence: 99%

Effect of Methylene Blue Addition as a Redox Mediator on Performance of Microbial Desalination Cell by Utilizing Tempe Wastewater

Zuhri¹,

Arbianti²,

Utami³

et al. 2016

IJTech

View full text Add to dashboard Cite

show abstract

“…We observed the mass transfer in this system not only by free diffusion but also by flowing of substrates. Besides, although it is redox active, the critical concentration of MB which affects the efficiency of power output is about several hundred mmol/L [22]. In this system, the concentration of MB (c MB ¼ 6.27 mmol/L) was less than one thousandth of the RM concentration (c RM ¼ 6756.8 mmol/L).…”

Section: Mechanism Of Self-sustainabilitymentioning

confidence: 86%

A hermetic self-sustained microbial solar cell based on Chlorella vulgaris and a versatile charge transfer chain

Pan

Zhou

2015

Journal of Power Sources

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“…Traditional MFCs consist of a cathode and anode compartment that is separated by a salt bridge or proton exchange membrane (PEM) (Fatemi et al, 2010). The active microorganisms are inculcated in the anaerobic anode chamber, where this biocatalyst used substrate and generate bioelectricity via their central metabolism (Jafary et al,2013;Rahimnejad et al,2011b;Mokhtarian et al, 2012a). Some of the produced electrons can transfer to the anode surface and then form an external circuit, move to the cathode and react with oxidants in the cathode electrode surface .…”

Section: Effective Parameter On Mfcsmentioning

confidence: 99%

“…Then, the generated electrons are transported to the anode electrode and the produced protons are moved through a proton exchange membrane toward the cathode compartment (Wen et al, 2009). The electron flows through an electrical external circuit while the anode is connected to the cathode Rahimnejad et al, 2011b;Rahimnejad et al, 2012b). The flow of electron creates a current (I) and a power (P).…”

Section: Introductionmentioning

confidence: 99%