Muhammad Ahmad, Maryam Yousaf, Aisha Batool et al.

Fuel • 2024

Ke Feng, Yi Lu, Yao Shen et al.

Journal of Power Sources • 2023

Qi Yang, Xin Bao, Ziying Li et al.

Journal of Water Process Engineering • 2022

Jocelyn Liao, Zhen He

Journal of Emerging Investigators • 2022

Climate change brings frequent and intense storms, which challenge aging stormwater infrastructures. As a sustainable stormwater solution, green roofs are being more frequently used in urban areas. However, high installation and maintenance costs have limited applications of green roofs on a large scale. A plant microbial fuel cell (P-MFC) is a novel technology that uses bacteria living around the root of plants to generate electricity. This study explores the integration of P-MFCs with an extensive green roof module for the dual benefit of stormwater runoff reduction and renewable energy generation. While most P-MFC systems in the literature are based on flooded plants, the green roof MFC developed in this study uses sedum plants which are among the most common vegetation layers for green roof solutions. We hypothesized that MFC efficiency could be improved by introducing a water storage layer and capillary sub-irrigation. Moreover, the capillary irrigation wick can function as a salt bridge to further enhance power generation. Three prototypes were fabricated to test our hypotheses, including a control unit without sub-irrigation and two units with capillary irrigation and one with additional salt bridge configuration. Experiments demonstrated that capillary irrigation and the salt bridge configuration significantly increased P-MFC’s power density and decreased the internal resistance. The research demonstrated that green roof modules with integrated P-MFCs can be a renewable energy generator, promoting the adoption of green roofs as sustainable solutions for climate resilience by simultaneously reducing storm floods, capturing carbon dioxide (CO2) in the atmosphere, and producing green electricity.

D. Vidhyeswari, A. Surendhar, S. Bhuvaneshwari

Chemosphere • 2022

Jimil Mehta, Soumesh Chatterjee, Manisha Shah

Journal of Environmental Management • 2024

Fabian Fischer, Nancy Merino, Marc Sugnaux et al.

Chemical Engineering Journal • 2022

Demin Jiang, Huina Chen, Hao Xie et al.

ChemistrySelect • 2022

Abstract Hydrophobicity of carbon‐based anodes hinders bacterial adhesion and biofilm formation. Herein, MnO 2 @MXene coated carbon cloth (CC) was designed as an anode for microbial fuel cells (MFCs). The anode integrated the hydrophilicity and conductivity of MXene with the biocompatibility of MnO 2 . This unique structure promoted bacterial colonisation and biofilm formation on the anode surface. MnO 2 @MXene enhanced electricity generation performance and wastewater degradation efficiency owing to the synergistic effect of MXene and MnO 2 . The MFC achieved a short startup time and an effective extracellular electron transfer process. The MnO 2 @MXene/CC anode ensured a higher power density and efficient decolourisation in MFCs. The MFC device achieved a high maximum power density of 746.3 mW/m 2 and a Congo red decolourisation efficiency of 87.6 % at 48 h. This work offers a potential strategy for the effective degradation of wastewater and recovery of electrical energy.

Soichiro Hirose, Trang Nakamoto, Kozo Taguchi

Resourceedings • 2023

Fossil fuels, the primary source of energy supply in modern society, are both unsustainable and damaging to the environment. The most cost-effective way to reduce the use of fossil fuels is to switch to renewable energy sources. Soil microbial fuel cells (SMFC) are a green energy production method because they use electron-generating bacteria in the soil to obtain electrical energy from organic matter. One way to improve the output of SMFCs is to increase the specific surface area of the anodes. The larger specific surface area allows more electrons to be received from the bacteria. In this study, bucky paper (BP) was utilized as the anode of SMFC. BP is a freestanding film fabricated from multi-walled carbon nanotubes (CNT) by vacuum filtration method. CNT has a high specific surface area and electrical conductivity. BP is also considered to be mechanically stable in soil due to its CNT network structure. However, the surface of the BP is hydrophobic. In SMFCs, the hydrophobic surface of the anode is a fatal disadvantage in terms of the affinity of microorganisms. Thus, heat treatment and UV ozone treatment were employed to make the surface of BP hydrophilic, and their output in SMFCs was investigated. As a result, SMFCs using UV-ozone-treated BPs as anodes produced the highest power density of 28.8 μW/cm². Also, unlike thermal treatment, UV ozone treatment did not damage the CNT structure. Hence, in this experiment, the output power of the SMFC was stable for at least 140 hours.

Harsha Nagar, Srimukhi Mandava, Mohammed K. Al Mesfer et al.

Fuel • 2023

Manisha Verma, Vishal Mishra

Biomass and Bioenergy • 2022

Marzieh Cheraghipoor, Davod Mohebbi-Kalhori, Meissam Noroozifar et al.

Fuel • 2020

Dhruva Mukhopadhyay, Rakesh Kumar Sharma, Pratima Gupta

Fuel Cells • 2022

Abstract Lignin is one of the most versatile and complex macromolecules, which can be converted to value‐added products such as p‐coumaric acid and vanillin upon depolymerization. The current work explored oxidative lignin depolymerization in a microbial peroxide‐producing cell containing manganese peroxidase enzymes. A double‐chambered microbial peroxide‐producing cell was constructed containing the immobilized manganese peroxidase on alginate beads in the cathode chamber, while the anodic chamber contained wastewater. This setup was run for 8 days after the addition of lignin in the catholyte. The voltage measured in the circuit was 0.491 V while the current and power densities were 223 µA/cm 2 and 110 µW/cm 2 , respectively on the 8th day of the experiment. The maximum H 2 O 2 concentration observed was 1.5 mM on the 6th day. Depolymerization of lignin was confirmed by the change in the significant peaks at 280 nm of the ultraviolet‐visible spectrum. A change in the signature regions of β‐β linkages and β‐O‐4 linkages in the Fourier‐transform infrared spectrum was also observed. Liquid chromatography–quadrupole time of flight–mass spectrometry analysis revealed the presence of compounds including isoeugenol, acetovanillone, methacrylic acid, phenamacril, diofenolan, and jasmolin identified as the product of lignin depolymerization.

Unknown Author

Indian Journal of Chemical Technology • 2024

Unknown Author

Archives of Environmental Protection • 2023

The contamination of the environment by antibiotics has become a serious problem, supported by abundant scientific evidence of its negative impact on both aquatic ecosystems and human health. Therefore, it is crucial to intensify research efforts towards developing effective and efficient processes for removing antibiotics from the aquatic environment. In this study, a bacterial consortium capable of breaking down penicillin was employed in a ceramic separator microbial fuel cell (MFC) to generate electricity. The consortium’s properties such as laccase activity, penicillin removal and microbial structure were studied. The SF11 bacterial consortium, with a laccase activity of 6.16±0.04 U/mL, was found to be effective in breaking down penicillin. The highest rate of penicillin removal (92.15±0.27%) was achieved when the SF11 consortium was incubated at 30 °C for 48 hours. Furthermore, when used as a whole-cell biocatalyst in a low-cost upflow MFC, the Morganella morganii-rich SF11 consortium demonstrated the highest voltage and power density of 964.93±1.86 mV and 0.56±0.00 W/m3, respectively. These results suggest that the SF11 bacterial consortium has the potential for use in ceramic separator MFCs for the removal of penicillin and electricity generation.

Bingying Cao

Applied and Computational Engineering • 2024

As global energy demand grows and environmental problems intensify, the search for clean, renewable energy solutions becomes especially urgent. This article reviews microbial fuel cell (MFCs) technology, a new type of clean energy technology that uses microbial metabolic activity to convert organic matter into electricity. Compared with traditional fossil fuel power generation methods, MFCs have significant advantages such as low pollution, low noise, and renewable. The working principle of MFCs, including the reaction process of anode and cathode, as well as the key factors affecting the performance of MFCs, such as the choice of anode and cathode materials, are discussed. In addition, the coupling applications of MFCs with other technologies, such as photocatalysis, electrofenton technology, microbial electrolysis (MEC) and constructed wetland technology, are discussed, which provide new possibilities for improving wastewater treatment efficiency and expanding the application field of MFC. Finally, the challenges and future development direction of MFCs technology are prospected, and key research directions such as improving energy conversion efficiency, reducing cost and enhancing system stability are pointed out.

Peng Cheng, Yingchuan Zhang, Xinlan Ying et al.

Fuel • 2024

Jiawei Yang, Shaoan Cheng, Shenglong Zhang et al.

Chemosphere • 2022

Pankaj Kumar, Suraj Prakash Singh Rana, Sakshi et al.

Fuel • 2025

Shuyi Zhou

Innovation in Science and Technology • 2022

Microbial fuel cell (MFC) is a device that uses microorganisms to convert chemical energy from organic matter directly into electrical energy. It is considered to have the potential for a wide range of applications to meet future human energy needs fuel diversity. This paper introduces the basic working principle of MFC and illustrates the electrode material, membrane and cell configuration selection on the performance influence of MFC. In addition, the application progress of MFC in recent years is reviewed, including sewage treatment, microbial electrolysis cell (MEC) and microbial desalination cell (MDC). Finally, the development direction of MFC is prospected: membrane and electrode materials need to be further studied, and MFC coupling technology needs to be continuously promoted.

B. Sivasankari, Vishwathi S.V, S. Ganesh

PARIPEX INDIAN JOURNAL OF RESEARCH • 2021

Waste generated by both agro based industries and domestic units have high nutrient contents to support microbial growth, these wastes are indiscriminately dumped and constitutes environmental and health hazards. Some of these wastes can be used to grow some bacterial species in microbial fuel cell to generate bioelectricity. The Microbial fuel cell is a device where the bacteria can grow on one electrode, they breakdown organic matter and release electrons from it. The bacteria can do this by keeping them separate from the oxygen, and when they release those electrons it creates a potential between the electrodes of about half a volt and voltage times current is power, and that is how power is generated from it. The waste materials used in this work are banana peels. Bacterial isolates that are used from the sewage and hay soil all within Gandhigram institute, Gandhigram. Microscopic characterization of the isolates by Gram reaction revealed the Gram negative and Gram positive and Biochemical test showed that the three isolated organisms were Escherichia sp., Pseudomonas sp, Bacillus sp. Microbial fuel cell were fabricated with a two plastic bottles as anode and cathode chamber. The electrode used were Aluminium mesh. A 3.75% sodium chloride, 2.2% agar salt bridge connected the chambers. The organism and banana peel as biocatalyst. Result that was monitored showed the maximum of 86mV at 24 hours reading respectively

Mingyan Zhang

Highlights in Science, Engineering and Technology • 2024

Microbial fuel cells (MFC) are bioelectrochemical systems that convert the chemical energy of organic compounds or renewable energy into electrical or bioelectrical energy through microbial-catalyzed reactions on the anode. The core principle of the technology is that microorganisms at the anode release electrons during the oxidation of the substrate, and electrons pass through the external circuit to the cathode, where they undergo a reduction reaction with oxygen, and finally combine with hydrogen ions to form water. Microorganisms play the role of electron transport medium, which realizes the efficient conversion of substrate energy to electric energy.As a green energy technology, it can generate electricity while relying on microorganisms to degrade organic pollutants in sewage. However, the high cost and low conversion efficiency limit the industrial applications of MFC. This paper briefly describes the reaction mechanism of microbial fuel cells and reviews the research progress on two important factors that influence the performance of MFC. Finally, the future development of MFC is anticipated to provide some references for related research.

John Parker Evans, Dominic F. Gervasio, Barry M. Pryor

Catalysts • 2021

The construction of optimized biological fuel cells requires a cathode which combines the longevity of a microbial catalyst with the current density of an enzymatic catalyst. Laccase-secreting fungi were grown directly on the cathode of a biological fuel cell to facilitate the exchange of inactive enzymes with active enzymes, with the goal of extending the lifetime of laccase cathodes. Directly incorporating the laccase-producing fungus at the cathode extends the operational lifetime of laccase cathodes while eliminating the need for frequent replenishment of the electrolyte. The hybrid microbial–enzymatic cathode addresses the issue of enzyme inactivation by using the natural ability of fungi to exchange inactive laccases at the cathode with active laccases. Finally, enzyme adsorption was increased through the use of a functionally graded coating containing an optimized ratio of titanium dioxide nanoparticles and single-walled carbon nanotubes. The hybrid microbial–enzymatic fuel cell combines the higher current density of enzymatic fuel cells with the longevity of microbial fuel cells, and demonstrates the feasibility of a self-regenerating fuel cell in which inactive laccases are continuously exchanged with active laccases.

Fareeha Batool, Waheed Miran, Marghoob Ahmed et al.

Journal of Applied Electrochemistry • 2025

Chengcheng Xing, Demin Jiang, Le Tong et al.

ChemElectroChem • 2021

Abstract The anode characteristics are important to the performance of microbial fuel cells (MFCs) due to the influence on biofilm formation and extracellular electron transfer (EET). Herein, MXene was modified by the superhydrophilic cationic polymer poly(diallyldimethylammonium chloride) (PDDA) to prepare MXene@PDDA/carbon cloth (CC) as an anode for MFC. The unique anode combines the advantages of high conductivity, superhydrophilicity and biocompatibility. The anode facilitated the enrichment of electrochemical active bacterium and promoted the efficiency of EET process. MFCs based on MXene@PDDA/CC anodes can produce the remarkable power output and the satisfactory effluent removal efficiency through an external series resistance of 1 kΩ. The device can gain the maximum output voltage of 585 mV and the maximum power density of 811 mW m −2 . The efficiencies of methyl orange decolorization and chemical oxygen demand were up to 79 % and 84 % after 12 h, respectively.

Tafadzwa Portia Mahurede, Chido Hermes Chihobo, Beaven Utete et al.

Fuel Communications • 2023

Ali Rezaei, Soheil Aber, Elnaz Asghari et al.

Fuel • 2024

Zahra Khaksar, Maryam Farahmand Habibi, Majid Arvand et al.

Fuel • 2024

Aisha Salisu Buhari, Hindatu Yusuf

International Journal of Science and Research (IJSR) • 2024

Manisha Verma, Vishal Mishra

SSRN Electronic Journal • 2021

Yana Mersinkova, Hyusein Yemendzhiev

Zeitschrift für Naturforschung C • 2024

Abstract Bio-electrochemical Systems (BES), particularly Microbial Fuel Cells (MFC), have emerged as promising technologies in environmental biotechnology. This study focused on optimizing the anode bacterial culture immobilization process to enhance BES performance. The investigation combines and modifies two key immobilization methods: covalent bonding with glutaraldehyde and inclusion in a chitosan gel in order to meet the criteria and requirements of the bio-anodes in MFC. The performance of MFCs with immobilized and suspended cultures was compared in parallel experiments. Both types showed similar substrate utilization dynamics with slight advantage of the immobilized bio-anode considering the lower concentration of biomass. The immobilized MFC exhibited higher power generation and metabolic activity, as well. Probably, this is due to improved anodic respiration and higher coulombic efficiency of the reactor. Analysis of organic acids content supported this conclusion showing significant inhibition of the fermentation products production in the MFC reactor with immobilized anode culture.

John Solomon, Sangeetha Dharmalingam

Fuel • 2024

Cen Bi, Qing Wen, Ye Chen et al.

Journal of Applied Electrochemistry • 2024

Weiwei Li, Xiaoyu Wang, Kaiyuan Pei et al.

Journal of Power Sources • 2025

Ali Rezaei, Zeinab Karami, Fatemeh Feli et al.

Fuel • 2023

Khurram Tahir, Waheed Miran, Jiseon Jang et al.

Chemosphere • 2021

Nawaz A

Petroleum & Petrochemical Engineering Journal • 2023

In this study, a wet proof multiple air cathode microbial fuel cell that generates bioelectricity by biodegradation of organic matter was fabricated. In this, platinum coated (0.5 mg/cm2) carbon cloth was used as air cathode and graphite rod was used as anode. The maximum power produced by MFC was 1.65042, 0.66951, 0.425061 mW on the 2nd day of operation with 1K, 3K, 5K ohm external resistance respectively. The maximum open circuit voltage and current given by MFC was 1.557 mV and 1.06 mA respectively incorporated with 1 K ohm external resistance. It was seen that open circuit voltage (OCV) initially increases with time due to increase in microbial activity but after that there is drop in voltage possibly due to decline of available substrate for microbial population. Maximum bacterial count of 90 ×105 CFU was observed on the 3rd day of operation.

Xia Hu, Jiangzhou Qin, Yubao Wang et al.

Journal of Colloid and Interface Science • 2022

K. Gunaseelan, Purnendra Singh Rajput, Rijo Rajumon et al.

Journal of Power Sources • 2024

Haseeb Ashraf, Muhammad Waseem Mumtaz, Haamid Jamil et al.

Catalysts • 2024

Water pollution is an alarming and critical environmental challenge that demands immediate attention. In addition to this, the world is also facing an energy crisis of ever-increasing proportions. Managing these issues through a sustainable approach is the need of the hour. In this context, microbial fuel cell (MFC) technology, with its dual capability to treat wastewater with simultaneous power generation, is gaining recognition as a sustainable solution. The current study was designed to evaluate the impact of a modified MFC anode, i.e., CoFe2O4@CF, Nb2C-MXene@CF, and CoFe2O4/Nb2C-MXene@CF, on the performance of MFC technology. A hydrothermal technique was used to synthesize CoFe2O4 and Nb2C-MXene, followed by characterization using XRD, SEM, and EDX tools. The results demonstrated that CoFe2O4/Nb2C-MXene@CF significantly enhanced the working performance of a MFC as compared to CoFe2O4@CF and Nb2C-MXene@CF. The MFC with this configuration produces a stable voltage (699.8 mV), coulombic efficiency (23.8%), COD removal (84%), and power density (394.272 mWm−2), with corresponding current density (888 mAm−2). These improvements were possibly due to the excellent electrocatalytic activity and strong biocompatibility of the modifier. Conclusively, the CoFe2O4/Nb2C-MXene composite is ascertained to be an emphatic anode material for MFCs with superior characteristics.