Enhanced catalytic capability of electroactive biofilm modified with different kinds of carbon nanotubes

Jiang, Zhaohong; Zhang, Di; Zhou, Lei; Deng, Dewei; Dai, Min; Liu, Ying

doi:10.1016/j.aca.2018.06.077

Cited by 14 publications

(5 citation statements)

References 74 publications

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“…They studied charge transfer resistance (Rct) of the anode biofilm was formed on the anode, and after 50 d. The BC-CNT without biofilm showed the lowest resistance, while in response to microbial colonization, the Rct showed an increasing trend (Mashkour et al, 2020). These findings were indicative of the toxicity effect of MWCNTs (at the tested concentration of 0.4 mg/mL) on the mixed-culture biofilm and were approximately in agreement with the data reported by Jiang et al (2018). To mitigate the toxicity effects of MWCNTs on the developed anode biofilm and to enhance its activity, Mashkour et al (2020) tried to modify MWCNTs using biocompatible nanomaterials like polyaniline (PANI) (Fig.…”

Section: Effects Of Nanomaterials On Exoelectrogens and Anode Performancesupporting

confidence: 78%

“…Despite the increased surface area for bacterial colonization, these nanomaterials have been reported as toxic at specific concentrations against bacteria. A recent work investigating the MWCNT's toxicity effect on microbial growth of Geobacter sulfurreducens biofilm revealed that the maximum MWCNTs concentration for improving anodic biofilm performance (i.e., highest power and current density compared to bare carbon sheet) was found to be 0.1 mg/mL (Jiang et al, 2018). However, further increments in MWCNTs concentration resulted in anodic biofilm's weak performance, suggesting that the MWCNTs concentration must have exceeded its toxic threshold (Jiang et al, 2018).…”

Section: Effects Of Nanomaterials On Exoelectrogens and Anode Performancementioning

confidence: 99%

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A review on the application of nanomaterials in improving microbial fuel cells

et al. 2021

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Materials at the nanoscale show exciting and different properties. In this review, the applications of nanomaterials for modifying the main components of microbial fuel cell (MFC) systems (i.e., electrodes and membranes) and their effect on cell performance are reviewed and critically discussed. Carbon and metal-based nanoparticles and conductive polymers could contribute to the growth of thick anodic and cathodic microbial biofilms, leading to enhanced electron transfer between the electrodes and the biofilm. Extending active surface area, increasing conductivity, and biocompatibility are among the significant attributes of promising nanomaterials used in MFC modifications. The application of nanomaterials in fabricating cathode catalysts (catalyzing oxygen reduction reaction) is also reviewed herein. Among the various nanocatalysts used on the cathode side, metal-based nanocatalysts such as metal oxides and metal-organic frameworks (MOFs) are regarded as inexpensive and high-performance alternatives to the conventionally used high-cost Pt. In addition, polymeric membranes modified with hydrophilic and antibacterial nanoparticles could lead to higher proton conductivity and mitigated biofouling compared to the conventionally used and expensive Nafion. These improvements could lead to more promising cell performance in power generation, wastewater treatment, and nanobiosensing. Future research efforts should also take into account decreasing the production cost of the nanomaterials and the environmental safety aspects of these compounds.

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Section: Effects Of Nanomaterials On Exoelectrogens and Anode Performancesupporting

confidence: 78%

Section: Effects Of Nanomaterials On Exoelectrogens and Anode Performancementioning

confidence: 99%

A review on the application of nanomaterials in improving microbial fuel cells

et al. 2021

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“…However, the results of the present and previous studies have shown that using higher concentrations above threshold limits can have a negative impact on microbial growth and activity due to increased toxicity and reduced biocompatibility, leading to microbial inactivation. On the other hand, increasing the concentration of the catalyst beyond threshold limits may lead to saturation of the electrode surface and reduced attachment of microorganisms on the electrode (13,52). This survey demonstrated that a Ni-coated carbon felt electrode, produced using the electroplating method, can be utilized as a high-e ciency and stable bio-anode material for bio-electrogeneration and wastewater treatment processes.…”

Section: Electrochemical Performance Of Mfcmentioning

confidence: 93%

Comprehensive and Comparative Survey of Microbial Fuel Cell Performance in the Presence of Graphite and Carbon Felt Electrodes Modified with Nano Bio-Nickel Thin Film

Mahmoodzadeh,

Navidjouy,

Alizadeh

et al. 2023

Preprint

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Microbial fuel cells (MFCs) have garnered significant interest from researchers as a self-sustaining and environmentally friendly system for the simultaneous treatment of urban and industrial wastewater and production of bioelectricity. The type and material of the electrode are critical factors that can influence the efficiency and energy production of this treatment process, with porosity, surface area, conductivity, and stability being key considerations. In this study, graphite plates and carbon felt were modified through the electrodeposition of nickel followed by the formation of a biofilm, resulting in conductive bio-anode thin film electrodes with enhanced power generation capacity. The structural and morphological properties of the electrode surfaces were characterized using X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX), elemental mapping, and field-emission scanning electron microscopy (FE-SEM) techniques. The results confirmed that nickel was successfully doped and that sufficient amounts of microorganisms were attached to the nickel-deposited electrodes, leading to improved electron transfer and increased power generation. To validate this claim, various parameters such as maximum voltage, current density, and power generation were investigated using a dual-chamber MFC equipped with a Nafion 117 membrane and bio-nickel-doped carbon felt (bio-Ni@CF) and bio-nickel-doped graphite plate (bio-Ni@GP) electrodes under constant temperature conditions. The polarization curve obtained during four loading stages using different anode electrodes indicated that the maximum voltage achieved was 468.0 mV using the bio-Ni@CF electrode, representing an increase of 35.0%, 18.37%, and 9.82% compared to the bare GP, bare CF, and bio-Ni@GP electrodes, respectively. The highest power density and current density achieved using the bio-Ni@CF electrode were 130.72 mW/m2 and 760.0 mA/m2, respectively. Furthermore, the modified electrodes demonstrated appropriate stability and resistance during successful runs. These results suggest that nickel-doped carbon-based electrodes can serve as suitable and stable supported catalysts and conductors for improving efficiency and increasing power generation in MFCs.

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“…technology, as microorganisms flourish and form biofilm for electron transfer in electrodes as biocatalysts[100][101][102]. Many researchers use carbon felt as an electrode material[103].…”

mentioning

confidence: 99%

“…Copper foam (CuF), carbon rods, and nickel foams (NiF) are the best off-hat properties of cathode electrodes. However, the 32 mg/L chloramphenicol (CAP) were removed using copper foam electrodes[102] within 12 h, which was further based on the carbon rods after 24 h, and nickel foam more than 120 h[10,77]. Antibiotics chloramphenicol is the main product, using carbon rods and foam nickel electrodes with copper foam electrodes, and completely mineralized with CO 2 and H 2 O, each with nitrobenzene (C 6 H 5 NO 2 ), and 4-nitrobenzene alcohol.…”

mentioning

confidence: 99%

Removal of antibiotics from wastewater and its problematic effects on microbial communities by bioelectrochemical Technology: Current knowledge and future perspectives

Hassan

Zhu

et al. 2020

Environmental Engineering Research

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In this review, antibiotics are considered an emerging pollutant that has drawn worldwide attention in recent years. Therefore, the effective removal of antibiotic contaminants has become a hot issue in the field of environmental research. Most antibiotics applied to humans eventually enter municipal Wastewater Treatment Plants (WWTPs), because there are no appropriate commercially available pretreatment techniques. However, increasing anthropogenic activities, the high demand for animal-protein in developing countries as a nutritional alternative, and the extensive usage of antibiotics are mainly responsible for the persistence of antibiotic pollutants. One of the serious concerns regarding the presence of antibiotics in water and their potential role in exacerbating the emergence of antibiotics-resistance bacteria (ARB) and antibiotics-resistance genes (ARGs). In recent years, bioelectrochemical technologies are found promising for suppressing antibiotic contaminants through microbial metabolism and electrochemical redox reactions. Therefore, this review provides up-to-date insight research on bioelectrochemical systems (BESs), which improves the removal of the antibiotic in an efficient way. The focus of this review has been on the environmental sources of antibiotics, their health effects and possible degradation pathways, bacterial-antibiotics resistance mechanisms, and treatment of antibiotic-contained water using BES technology.

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Enhanced catalytic capability of electroactive biofilm modified with different kinds of carbon nanotubes

Cited by 14 publications

References 74 publications

A review on the application of nanomaterials in improving microbial fuel cells

A review on the application of nanomaterials in improving microbial fuel cells

Comprehensive and Comparative Survey of Microbial Fuel Cell Performance in the Presence of Graphite and Carbon Felt Electrodes Modified with Nano Bio-Nickel Thin Film

Removal of antibiotics from wastewater and its problematic effects on microbial communities by bioelectrochemical Technology: Current knowledge and future perspectives

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