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Hornik T, Terry M, Krause M, Catterlin JK, Joiner KL, Aragon S, Sarmiento A, Arias-Thode YM, Kartalov EP. Experimental Proof of Principle of 3D-Printed Microfluidic Benthic Microbial Fuel Cells (MBMFCs) with Inbuilt Biocompatible Carbon-Fiber Electrodes. MICROMACHINES 2024; 15:870. [PMID: 39064381 PMCID: PMC11278569 DOI: 10.3390/mi15070870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Revised: 06/22/2024] [Accepted: 06/26/2024] [Indexed: 07/28/2024]
Abstract
Microbial fuel cells (MFCs) represent a promising avenue for sustainable energy production by harnessing the metabolic activity of microorganisms. In this study, a novel design of MFC-a Microfluidic Benthic Microbial Fuel Cell (MBMFC)-was developed, fabricated, and tested to evaluate its electrical energy generation. The design focused on balancing microfluidic architecture and wiring procedures with microbial community dynamics to maximize power output and allow for upscaling and thus practical implementation. The testing phase involved experimentation to evaluate the performance of the MBMFC. Microbial feedstock was varied to assess its impact on power generation. The designed MBMFC represents a promising advancement in the field of bioenergy generation. By integrating innovative design principles with advanced fabrication techniques, this study demonstrates a systematic approach to optimizing MFC performance for sustainable and clean energy production.
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Affiliation(s)
- Terak Hornik
- Physics Department, Naval Postgraduate School, 1 University Circle, Monterey, CA 93943, USA; (T.H.); (M.T.); (J.K.C.)
| | - Maxwell Terry
- Physics Department, Naval Postgraduate School, 1 University Circle, Monterey, CA 93943, USA; (T.H.); (M.T.); (J.K.C.)
| | - Michael Krause
- MOVES Institute, Naval Postgraduate School, 1 University Circle, Monterey, CA 93943, USA;
| | - Jeffrey K. Catterlin
- Physics Department, Naval Postgraduate School, 1 University Circle, Monterey, CA 93943, USA; (T.H.); (M.T.); (J.K.C.)
| | - Kevin L. Joiner
- Naval Information Warfare Center, San Diego, CA 92152, USA; (K.L.J.); (S.A.); (A.S.); (Y.M.A.-T.)
| | - Samuel Aragon
- Naval Information Warfare Center, San Diego, CA 92152, USA; (K.L.J.); (S.A.); (A.S.); (Y.M.A.-T.)
| | - Angelica Sarmiento
- Naval Information Warfare Center, San Diego, CA 92152, USA; (K.L.J.); (S.A.); (A.S.); (Y.M.A.-T.)
| | | | - Emil P. Kartalov
- Physics Department, Naval Postgraduate School, 1 University Circle, Monterey, CA 93943, USA; (T.H.); (M.T.); (J.K.C.)
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Ma J, Wang L, Zhang Y, Jia J. Fabrication of a Molybdenum Dioxide/Multi-Walled Carbon Nanotubes Nanocomposite as an Anodic Modification Material for High-Performance Microbial Fuel Cells. Molecules 2024; 29:2541. [PMID: 38893417 PMCID: PMC11173943 DOI: 10.3390/molecules29112541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/18/2024] [Accepted: 05/23/2024] [Indexed: 06/21/2024] Open
Abstract
A nanocomposite of multi-walled carbon nanotubes (MWCNTs) decorated with molybdenum dioxide (MoO2) nanoparticles is fabricated through the reduction of phosphomolybdic acid hydrate on functionalized MWCNTs in a hydrogen-argon (10%) atmosphere in a tube furnace. The MoO2/MWCNTs composite is proposed as an anodic modification material for microbial fuel cells (MFCs). MWCNTs have outstanding physical and chemical peculiarities, with functionalized MWCNTs having substantially large electroactive areas. In addition, combined with the exceptional properties of MoO2 nanoparticles, the synergistic advantages of functionalized MWCNTs and MoO2 nanoparticles give a MoO2/MWCNTs anode a large electroactive area, excellent electronic conductivity, enhanced extracellular electron transfer capacity, and improved nutrient transfer capability. Finally, the power harvesting of an MFC with the MoO2/MWCNTs anode is improved, with the MFC showing long-term repeatability of voltage and current density outputs. This exploratory research advances the fundamental application of anodic modification to MFCs, simultaneously providing valuable guidance for the use of carbon-based transition metal oxide nanomaterials in high-performance MFCs.
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Affiliation(s)
- Jianchun Ma
- Department of Chemical and Material Engineering, Lyuliang University, Lishi 033001, China;
- Institute of New Carbon-Based Materials and Zero-Carbon and Negative-Carbon Technology, Lyuliang University, Lishi 033001, China
| | - Lifang Wang
- Department of Chemical and Material Engineering, Lyuliang University, Lishi 033001, China;
- Institute of New Carbon-Based Materials and Zero-Carbon and Negative-Carbon Technology, Lyuliang University, Lishi 033001, China
| | - Yezhen Zhang
- College of Chemistry and Pharmacy Engineering, Nanyang Normal University, Nanyang 473061, China;
| | - Jianfeng Jia
- Key Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education, School of Chemistry and Materials Science, Shanxi Normal University, Taiyuan 030031, China
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Barakat NAM, Gamal S, Kim HY, Abd El-Salam NM, Fouad H, Fadali OA, Moustafa HM, Abdelraheem OH. Synergistic advancements in sewage-driven microbial fuel cells: novel carbon nanotube cathodes and biomass-derived anodes for efficient renewable energy generation and wastewater treatment. Front Chem 2023; 11:1286572. [PMID: 38075493 PMCID: PMC10704469 DOI: 10.3389/fchem.2023.1286572] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 11/13/2023] [Indexed: 03/11/2024] Open
Abstract
Microbial fuel cells (MFCs) offer a dual solution of generating electrical energy from organic pollutants-laden wastewater while treating it. This study focuses on enhancing MFC performance through innovative electrode design. Three-dimensional (3D) anodes, created from corncobs and mango seeds via controlled graphitization, achieved remarkable power densities. The newly developed electrode configurations were evaluated within sewage wastewater-driven MFCs without the introduction of external microorganisms or prior treatment of the wastewater. At 1,000°C and 1,100°C graphitization temperatures, corncob and mango seed anodes produced 1,963 and 2,171 mW/m2, respectively, nearly 20 times higher than conventional carbon cloth and paper anodes. An advanced cathode composed of an activated carbon-carbon nanotube composite was introduced, rivaling expensive platinum-based cathodes. By optimizing the thermal treatment temperature and carbon nanotube content of the proposed cathode, comparable or superior performance to standard Pt/C commercial cathodes was achieved. Specifically, MFCs assembled with corncob anode with the proposed and standard Pt/C cathodes reached power densities of 1,963.1 and 2,178.6 mW/m2, respectively. Similarly, when utilizing graphitized mango seeds at 1,100°C, power densities of 2,171 and 2,151 mW/m2 were achieved for the new and standard cathodes, respectively. Furthermore, in continuous operation with a flow rate of 2 L/h, impressive chemical oxygen demand (COD) removal rates of 77% and 85% were achieved with corncob and mango seed anodes, respectively. This work highlights the significance of electrode design for enhancing MFC efficiency in electricity generation and wastewater treatment.
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Affiliation(s)
- Nasser A. M. Barakat
- Chemical Engineering Department, Faculty of Engineering, Minia University, El-Minia, Egypt
| | - Shimaa Gamal
- Chemical Engineering Department, Faculty of Engineering, Minia University, El-Minia, Egypt
| | - Hak Yong Kim
- Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju, Republic of Korea
- Department of Organic Materials and Fiber Engineering, Jeonbuk National University, Jeonju, Republic of Korea
| | - Nasser M. Abd El-Salam
- Natural Science Department, Community College, King Saud University, Riyadh, Saudi Arabia
| | - Hassan Fouad
- Biomedical Engineering Department, Faculty of Engineering, Helwan University, Helwan, Egypt
| | - Olfat A. Fadali
- Chemical Engineering Department, Faculty of Engineering, Minia University, El-Minia, Egypt
| | - Hager M. Moustafa
- Chemical Engineering Department, Faculty of Engineering, Minia University, El-Minia, Egypt
| | - Omina H. Abdelraheem
- Sciences Engineering Department, Faculty of Engineering, Beni-Suef University, Beni-Suef, Egypt
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4
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Apollon W. An Overview of Microbial Fuel Cell Technology for Sustainable Electricity Production. MEMBRANES 2023; 13:884. [PMID: 37999370 PMCID: PMC10672772 DOI: 10.3390/membranes13110884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 11/14/2023] [Accepted: 11/15/2023] [Indexed: 11/25/2023]
Abstract
The over-exploitation of fossil fuels and their negative environmental impacts have attracted the attention of researchers worldwide, and efforts have been made to propose alternatives for the production of sustainable and clean energy. One proposed alternative is the implementation of bioelectrochemical systems (BESs), such as microbial fuel cells (MFCs), which are sustainable and environmentally friendly. MFCs are devices that use bacterial activity to break down organic matter while generating sustainable electricity. Furthermore, MFCs can produce bioelectricity from various substrates, including domestic wastewater (DWW), municipal wastewater (MWW), and potato and fruit wastes, reducing environmental contamination and decreasing energy consumption and treatment costs. This review focuses on recent advancements regarding the design, configuration, and operation mode of MFCs, as well as their capacity to produce bioelectricity (e.g., 2203 mW/m2) and fuels (i.e., H2: 438.7 mg/L and CH4: 358.7 mg/L). Furthermore, this review highlights practical applications, challenges, and the life-cycle assessment (LCA) of MFCs. Despite the promising biotechnological development of MFCs, great efforts should be made to implement them in a real-time and commercially viable manner.
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Affiliation(s)
- Wilgince Apollon
- Department of Agricultural and Food Engineering, Faculty of Agronomy, Autonomous University of Nuevo León, Francisco Villa S/N, Ex-Hacienda El Canadá, General Escobedo 66050, Nuevo León, Mexico
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Bai J, Bao M, Wang S, Wen T, Li Y, Zhang J, Mei T, Guo Y. Insights into electrogenerated intermediates and rapid screening of electrochemical reactions by surface-modified carbon fiber paper redox spray ionization mass spectrometry. Anal Chim Acta 2023; 1279:341794. [PMID: 37827687 DOI: 10.1016/j.aca.2023.341794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 08/29/2023] [Accepted: 09/06/2023] [Indexed: 10/14/2023]
Abstract
The combination of electrochemistry and mass spectrometry is a powerful analytical tool for studying redox reaction mechanisms and identifying products or intermediates. However, the previously reported devices all require bespoke fabrication and are too complicated to be assembled and used by others. Crucially, the long ion transport distance and small spray volumes make it difficult to capture the short-lived intermediates. We present a practical mass spectrometric method in which surface-modified carbon fiber paper is innovatively applied to detect electrogenerated intermediates. Treating carbon fiber paper with dilute nitric acid removes its surface impurities, enhancing the capability of electro-redox. Electrospray ionization and redox reaction occur simultaneously on the tip of the paper. Transient electro-redox species generate and transfer into gas phase as soon as the appearance of spray. Rapid transport of quantities of electrogenerated ions to the mass spectrometer inlet makes it possible for mass spectrometric identification on the millisecond scale. The short-lived radical cations and iminium ions were successfully captured, reflecting the starting step of the cross-dehydrogenation coupling reaction. The real-time oxidation and online functionalization reactions of tertiary amines were achieved using this device without additional oxidants and electrolytes. In this way we could achieve in-depth mechanistic understanding and rapid screening of serial reactions.
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Affiliation(s)
- Jiahui Bai
- State Key Laboratory of Organometallic Chemistry and National Center for Organic Mass Spectrometry in Shanghai, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Mingmai Bao
- State Key Laboratory of Organometallic Chemistry and National Center for Organic Mass Spectrometry in Shanghai, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Shanshan Wang
- College of Science, Chang'an University, Xi'an, 710064, China
| | - Tianlun Wen
- State Key Laboratory of Organometallic Chemistry and National Center for Organic Mass Spectrometry in Shanghai, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Yuling Li
- State Key Laboratory of Organometallic Chemistry and National Center for Organic Mass Spectrometry in Shanghai, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Jing Zhang
- State Key Laboratory of Organometallic Chemistry and National Center for Organic Mass Spectrometry in Shanghai, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200032, China.
| | - Tiansheng Mei
- State Key Laboratory of Organometallic Chemistry and National Center for Organic Mass Spectrometry in Shanghai, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200032, China.
| | - Yinlong Guo
- State Key Laboratory of Organometallic Chemistry and National Center for Organic Mass Spectrometry in Shanghai, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200032, China.
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6
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Yuan D, Bai M, He L, Zhou Q, Kou Y, Li J. Removal performance and dissolved organic matter biodegradation characteristics in advection ecological permeable dam reactor. ENVIRONMENTAL TECHNOLOGY 2023; 44:2288-2299. [PMID: 34989328 DOI: 10.1080/09593330.2022.2026489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Accepted: 12/11/2021] [Indexed: 06/04/2023]
Abstract
In this present study, an advection ecological permeable dam (AEPD) based on a biofilm reactor was established to investigate pollution control performance and dissolved organic matter (DOM) bio-degradation. The AEPD achieved optimal efficiency-chemical oxygen demand, 6-53 mg/L; total nitrogen concentration, 1.47-6.89 mg/L; total phosphorus concentration, 0.53-3.93 mg/L, and increases in values for ultraviolet-visible parameters-SUVA254, from 0.392 to 0.673-1.438; E4/E6, from 1.09 to 1.11-1.26; A240-400, from 12.06 to 13.09-19.95; and A253-203, from 0.03 to 0.04-0.23. This showed that DOM degradation promoted its humification, aromatisation, and unsaturation as well as increased the number of polar functional groups in the organic aromatic rings of DOM. Synchronous fluorescence and parallel factor analyses indicated that AEPD could effectively degrade tyrosine-like and tryptophan-like compounds, which showed the most significant decrease in fluorescence intensity. Additionally, AEPD displayed some stable dominant bacterial genera (e.g. Proteobacteria_unclassified, Bacteroidetes_unclassified, Gemmobacter, Pseudofulvimonas, Flavobacterium, Pseudomonas, and Nitrospira), although their relative abundance differed under variable hydraulic loading rates. This research provided further technical support for the application of AEPD in the treatment of water environment pollution.
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Affiliation(s)
- Donghai Yuan
- Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing, People's Republic of China
| | - Minghui Bai
- Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing, People's Republic of China
| | - Liansheng He
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, People's Republic of China
| | - Qiang Zhou
- Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing, People's Republic of China
| | - Yingying Kou
- Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing, People's Republic of China
| | - Junqi Li
- Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing, People's Republic of China
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7
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Influence of electrode surface charge on current production by Geobacter sulfurreducens microbial anodes. Bioelectrochemistry 2022; 147:108213. [DOI: 10.1016/j.bioelechem.2022.108213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 07/05/2022] [Accepted: 07/15/2022] [Indexed: 12/25/2022]
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Hegazy GE, Taha TH, Abdel-Fattah YR. Investigation of the optimum conditions for electricity generation by haloalkaliphilic archaeon Natrialba sp. GHMN55 using the Plackett-Burman design: single and stacked MFCs. Microb Cell Fact 2022; 21:82. [PMID: 35562834 PMCID: PMC9107110 DOI: 10.1186/s12934-022-01810-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 05/01/2022] [Indexed: 11/25/2022] Open
Abstract
The production of bioelectricity via the anaerobic oxidation of organic matter by microorganisms is recently receiving much interest and is considered one of the future alternative technologies. In this study, we aimed to produce electrical current by using facultative halophilic archaeon Natrialba sp. GHMN55 as a biocatalyst at the anode of a microbial fuel cell (MFC) to generate electrons from the anaerobic breakdown of organic matter to produce electrical current. Since the MFC’s performance can be affected by many factors, the Plackett–Burman experimental design was applied to optimize the interaction between these factors when tested together and to identify the most significant factors that influence bioelectricity generation. We found that the factors that significantly affected electrical current generation were casein, inoculum age, magnet-bounded electrodes, NaCl, resistor value, and inoculum size; however, the existence of a mediator and the pH showed negative effects on bioelectricity production, where the maximum value of the 200 mV voltage was achieved after 48 h. The optimum medium formulation obtained using this design led to a decrease in the time required to produce bioelectricity from 20 days (in the basal medium) to 2 days (in the optimized medium). Also, the overall behavior of the cell could be enhanced by using multiple stacked MFCs with different electrical configurations (such as series or parallel chambers) to obtain higher voltages or power densities than the single chambers where the series chambers were recorded at 27.5 mV after 48 h of incubation compared with 12.6 mV and 1.1 mV for parallel and single chambers, respectively. These results indicate that the order of preferred MFC designs regarding total power densities would be series > parallel > single.
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Affiliation(s)
- Ghada E Hegazy
- National Institute of Oceanography and Fisheries, NIOF-Egypt, El-Anfoushy, Qaitbay Sq, Alexandria, 11865, Egypt.
| | - Tarek H Taha
- Environmental Biotechnology Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), City of Scientific Research and Technological Applications (SRTA-City), Universities and Research Institutes Zone, New Borg Elarab city, 21934, Alexandria, Egypt.
| | - Yasser R Abdel-Fattah
- Bioprocess Development Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg Elarab city, Alexandria, Egypt
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Agudelo-Escobar LM, Cabrera SE, Avignone Rossa C. A Bioelectrochemical System for Waste Degradation and Energy Recovery From Industrial Coffee Wastewater. FRONTIERS IN CHEMICAL ENGINEERING 2022. [DOI: 10.3389/fceng.2022.814987] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
Abstract
The primary production of coffee involves the extensive use of water resources, since it is not only used for irrigation of coffee plantations, but it is also required in large volumes for the processing of the coffee berry to obtain high quality green beans. It is calculated that for every kg of dry coffee grain produced, up to 40 L of water are consumed, and its disposal represents a significant environmental problem, since most coffee growers are small producers with no access to efficient technologies for wastewater treatment. This situation leads to these liquid wastes to be discarded untreated in natural water sources, generating environmental pollution and public health problems. Bioelectrochemical Systems (BES) have been proposed as an alternative to conventional wastewater treatments, either as a primary bioremediation strategy or for secondary wastewater treatment systems. Among BES, microbial fuel cells (MFCs) are designed to exploit the metabolic capability of andophilic microorganisms to degrade the organic matter present in the waste. Anodophilic microorganisms use electrodes as terminal electron acceptors, generating a flow of electrons that can be used in the generation of electricity. In this work, we evaluated the ability of native microbial communities to degrade the organic matter present in wastewater from the coffee agroindustry and its electrogenic potential for the co-generation of electricity was evaluated using an MFC device developed by the authors. Wastewater samples obtained at different stages of the coffee wet process were used as inoculum and feedstocks. The system was operated in fed-batch, in both open and closed-circuit conditions, for 60 days. The degree of decontamination or bioremediation of the wastewater was assessed by measurements of physicochemical parameters. For the characterization of the native microbial community, microscopic and molecular techniques were used and the electrogenic potential was established by assessing the electrochemical performance of the system. With the proposed bioelectrochemical system, a reduction of up to 70% of the initial content of organic matter of the residual water from the coffee benefit was achieved, and open circuit voltages of up to 400 mV were recorded, comparable to those reported for conventional air breathing cathode MFC.
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Hoang AT, Nižetić S, Ng KH, Papadopoulos AM, Le AT, Kumar S, Hadiyanto H, Pham VV. Microbial fuel cells for bioelectricity production from waste as sustainable prospect of future energy sector. CHEMOSPHERE 2022; 287:132285. [PMID: 34563769 DOI: 10.1016/j.chemosphere.2021.132285] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/23/2021] [Accepted: 09/16/2021] [Indexed: 06/13/2023]
Abstract
Microbial fuel cell (MFC) is lauded for its potentials to solve both energy crisis and environmental pollution. Technologically, it offers the capability to harness electricity from the chemical energy stored in the organic substrate with no intermediate steps, thereby minimizes the entropic loss due to the inter-conversion of energy. The sciences underneath such MFCs include the electron and proton generation from the metabolic decomposition of the substrate by microbes at the anode, followed by the shuttling of these charges to cathode for electricity generation. While its promising prospects were mutually evinced in the past investigations, the upscaling of MFC in sustaining global energy demands and waste treatments is yet to be put into practice. In this context, the current review summarizes the important knowledge and applications of MFCs, concurrently identifies the technological bottlenecks that restricted its vast implementation. In addition, economic analysis was also performed to provide multiangle perspectives to readers. Succinctly, MFCs are mainly hindered by the slow metabolic kinetics, sluggish transfer of charged particles, and low economic competitiveness when compared to conventional technologies. From these hindering factors, insightful strategies for improved practicality of MFCs were formulated, with potential future research direction being identified too. With proper planning, we are delighted to see the industrialization of MFCs in the near future, which would benefit the entire human race with cleaner energy and the environment.
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Affiliation(s)
- Anh Tuan Hoang
- Institute of Engineering, Ho Chi Minh City University of Technology (HUTECH), Ho Chi Minh City, Viet Nam.
| | - Sandro Nižetić
- University of Split, FESB, Rudjera Boskovica 32, 21000, Split, Croatia
| | - Kim Hoong Ng
- Department of Chemical Engineering, Ming Chi University of Technology, New Taipei City, 24301, Taiwan.
| | - Agis M Papadopoulos
- Process Equipment Design Laboratory, Department of Mechanical Engineering, Aristotle University of Thessaloniki, Postal Address: GR-54124, Thessaloniki, Greece
| | - Anh Tuan Le
- School of Transportation Engineering, Hanoi University of Science and Technology, Hanoi, Viet Nam.
| | - Sunil Kumar
- Waste Reprocessing Division, CSIR-National Environmental Engineering Research Institute, Nagpur, 440 020, India
| | - H Hadiyanto
- Center of Biomass and Renewable Energy (CBIORE), Department of Chemical Engineering, Diponegoro University, Jl. Prof. Soedarto SH, Tembalang, Semarang, 50271, Indonesia; School of Postgraduate Studies, Diponegoro University, Jl. Imam Bardjo, SH Semarang, 50241, Indonesia.
| | - Van Viet Pham
- PATET Research Group, Ho Chi Minh City University of Transport, Ho Chi Minh City, Viet Nam.
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Sharif HMA, Farooq M, Hussain I, Ali M, Mujtaba M, Sultan M, Yang B. Recent innovations for scaling up microbial fuel cell systems: Significance of physicochemical factors for electrodes and membranes materials. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.09.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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12
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Fonseca EU, Yang W, Wang X, Rossi R, Logan BE. Comparison of different chemical treatments of brush and flat carbon electrodes to improve performance of microbial fuel cells. BIORESOURCE TECHNOLOGY 2021; 342:125932. [PMID: 34543819 DOI: 10.1016/j.biortech.2021.125932] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/06/2021] [Accepted: 09/08/2021] [Indexed: 06/13/2023]
Abstract
Anodes in microbial fuel cells (MFCs) can be chemically treated to improve performance but the impact of treatment on power generation has not been examined for different electrode base materials. Brush or flat anodes were chemically treated and then compared in identical two-chambered MFCs using the electrode potential slope (EPS) analysis to quantify the anode resistances. Flat carbon cloth anodes modified with carbon nanotubes (CNTs) produced 1.42 ± 0.06 W m-2, which was 3.2 times more power than the base material (0.44 ± 0.00 W m-2), but less than the 2.35 ± 0.1 W m-2 produced using plain graphite fiber brush anodes. An EPS analysis showed that there was a 90% decrease in the anode resistances of the CNT-treated carbon cloth and a 5% decrease of WO3 nanoparticle-treated brushes compared to unmodified controls. Certain chemical treatments can therefore improve performance of flat anodes, but plain brush anodes achieved the highest power densities.
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Affiliation(s)
- Emmanuel U Fonseca
- Department of Civil and Environmental Engineering, The Pennsylvania State University, 231Q Sackett Building, University Park, PA 16802, United States
| | - Wulin Yang
- Department of Civil and Environmental Engineering, The Pennsylvania State University, 231Q Sackett Building, University Park, PA 16802, United States; College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Xu Wang
- School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
| | - Ruggero Rossi
- Department of Civil and Environmental Engineering, The Pennsylvania State University, 231Q Sackett Building, University Park, PA 16802, United States
| | - Bruce E Logan
- Department of Civil and Environmental Engineering, The Pennsylvania State University, 231Q Sackett Building, University Park, PA 16802, United States.
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13
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Hoareau M, Etcheverry L, Erable B, Bergel A. Oxygen supply management to intensify wastewater treatment by a microbial electrochemical snorkel. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.139103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Ratheesh A, Elias L, Aboobakar Shibli SM. Tuning of Electrode Surface for Enhanced Bacterial Adhesion and Reactions: A Review on Recent Approaches. ACS APPLIED BIO MATERIALS 2021; 4:5809-5838. [PMID: 35006924 DOI: 10.1021/acsabm.1c00362] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The study of bacterial adhesion and its consequences has great significance in different fields such as marine science, renewable energy sectors, soil and plant ecology, food industry, and the biomedical field. Generally, the adverse effects of microbial surface interactions have attained wide visibility. However, herein, we present distinct approaches to highlight the beneficial aspects of microbial surface interactions for various applications rather than deal with the conventional negative aspects or prevention strategies. The surface microbial reactions can be tuned for useful biochemical or bio-electrochemical applications, which are otherwise unattainable through conventional routes. In this context, the present review is a comprehensive approach to highlight the basic principles and signature parameters that are responsible for the useful microbial-electrode interactions. It also proposes various surface tuning strategies, which are useful for tuning the electrode characteristics particularly suitable for the enhanced bacterial adhesion and reactions. The tuning of surface characteristics of electrodes is discussed with a special reference to the Microbial Fuel Cell as an example.
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Affiliation(s)
- Anjana Ratheesh
- Department of Biotechnology, University of Kerala, Kariavattom Campus, Thiruvananthapuram, Kerala 695 581, India
| | - Liju Elias
- Department of Chemistry, University of Kerala, Kariavattom Campus, Thiruvananthapuram, Kerala 695 581, India
| | - Sheik Muhammadhu Aboobakar Shibli
- Department of Chemistry, University of Kerala, Kariavattom Campus, Thiruvananthapuram, Kerala 695 581, India.,Centre for Renewable Energy and Materials, University of Kerala, Kariavattom Campus, Thiruvananthapuram, Kerala 695 581, India
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15
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Roubaud E, Lacroix R, Da Silva S, Esvan J, Etcheverry L, Bergel A, Basséguy R, Erable B. Industrially scalable surface treatments to enhance the current density output from graphite bioanodes fueled by real domestic wastewater. iScience 2021; 24:102162. [PMID: 33665578 PMCID: PMC7907815 DOI: 10.1016/j.isci.2021.102162] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 11/03/2020] [Accepted: 02/04/2021] [Indexed: 11/21/2022] Open
Abstract
Acid and electrochemical surface treatments of graphite electrode, used individually or in combination, significantly improved the microbial anode current production, by +17% to +56%, in well-regulated and duplicated electroanalytical experimental systems. Of all the consequences induced by surface treatments, the modifications of the surface nano-topography preferentially justify an improvement in the fixation of bacteria, and an increase of the specific surface area and the electrochemically accessible surface of graphite electrodes, which are at the origin of the higher performances of the bioanodes supplied with domestic wastewater. The evolution of the chemical composition and the appearance of C-O, C=O, and O=C-O groups on the graphite surface created by combining acid and electrochemical treatments was prejudicial to the formation of efficient domestic-wastewater-oxidizing bioanodes. The comparative discussion, focused on the positioning of the performances, shows the industrial interest of applying the surface treatment method to the world of bioelectrochemical systems.
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Affiliation(s)
- Emma Roubaud
- Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | - Rémy Lacroix
- 6T-MIC Ingénieries, 9 rue du développement – ZI de Vic, 31320 Castanet-Tolosan, France
| | - Serge Da Silva
- 6T-MIC Ingénieries, 9 rue du développement – ZI de Vic, 31320 Castanet-Tolosan, France
| | - Jérôme Esvan
- Cirimat, Université de Toulouse, CNRS-INP-UPS, 4 allée Emile MONSO, BP 44362, 31030 Toulouse, France
| | - Luc Etcheverry
- Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | - Alain Bergel
- Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | - Régine Basséguy
- Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | - Benjamin Erable
- Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
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16
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Evaluating the performance of coupled MFC-MEC with graphite felt/MWCNTs polyscale electrode in landfill leachate treatment, and bioelectricity and biogas production. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE AND ENGINEERING 2020; 18:1067-1082. [PMID: 33312625 DOI: 10.1007/s40201-020-00528-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 09/03/2020] [Indexed: 12/07/2022]
Abstract
Purpose A bioelectricity producing system was configured by connecting to a microbial electrolysis cell producing hydrogen, in which both systems were without mediator, to treatment the landfill leachate of the and generate bioelectricity and hydrogen. Methods The anode electrode was made with MWCNTs polyscale coating on graphite felt and the cathode electrode with activated carbon coating on carbon cloth. In the MFC-MEC coupled system, the electrodes were connected in series using copper wire. The system was set up in a fed-batch mode and the landfill synthetic leachate was injected into the anode MFC-MEC chamber as fuel. Results In MFC, the highest voltage, current density and power density were 1114 mV, 44.2A/m3 and 49.24 W/m3, respectively. The maximum of the coulombic efficiency system was 94.10%. The highest removed COD, NH4-N and P was 97.38%, 79.56% and 74.61%, respectively. In the MEC, the maximum of voltage input, current density and power density was 1106 mV, 43.88 A/m3and 48.54 W/m3, respectively. The maximum coulombic efficiency system was 125.54%. Also the highest removed COD, NH4-N and P was 97.46%, 78.81% and 76.25%, respectively. The highest biogas production rate and its yield were 39 mL/L.d, and 0.0118 L/g CODrem, respectively. Conclusion This study found that the MFC-MEC coupled system had promising potential for strong wastewaters treatment, such as the leachate of landfill; and the in-site use of generated electricity and the production of useful fuels such as biogas.
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Ma J, Shi N, Jia J. Fe3O4 nanospheres decorated reduced graphene oxide as anode to promote extracellular electron transfer efficiency and power density in microbial fuel cells. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.137126] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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18
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Tailored glycosylated anode surfaces: Addressing the exoelectrogen bacterial community via functional layers for microbial fuel cell applications. Bioelectrochemistry 2020; 136:107621. [DOI: 10.1016/j.bioelechem.2020.107621] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 07/21/2020] [Accepted: 07/23/2020] [Indexed: 12/11/2022]
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19
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Fabrication of anode electrode by a novel acrylic based graphite paint on stainless steel mesh and investigating biofilm effect on electrochemical behavior of anode in a single chamber microbial fuel cell. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136168] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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20
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Yaqoob AA, Mohamad Ibrahim MN, Rafatullah M, Chua YS, Ahmad A, Umar K. Recent Advances in Anodes for Microbial Fuel Cells: An Overview. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E2078. [PMID: 32369902 PMCID: PMC7254385 DOI: 10.3390/ma13092078] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 04/26/2020] [Accepted: 04/29/2020] [Indexed: 11/19/2022]
Abstract
The recycling and treatment of wastewater using microbial fuel cells (MFCs) has been attracting significant attention as a way to control energy crises and water pollution simultaneously. Despite all efforts, MFCs are unable to produce high energy or efficiently treat pollutants due to several issues, one being the anode's material. The anode is one of the most important parts of an MFC. Recently, different types of anode materials have been developed to improve the removal rate of pollutants and the efficiency of energy production. In MFCs, carbon-based materials have been employed as the most commonly preferred anode material. An extensive range of potentials are presently available for use in the fabrication of anode materials and can considerably minimize the current challenges, such as the need for high quality materials and their costs. The fabrication of an anode using biomass waste is an ideal approach to address the present issues and increase the working efficiency of MFCs. Furthermore, the current challenges and future perspectives of anode materials are briefly discussed.
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Affiliation(s)
- Asim Ali Yaqoob
- School of Chemical Sciences, Universiti Sains Malaysia, Penang 11800, Malaysia; (A.A.Y.); (Y.S.C.); (K.U.)
| | | | - Mohd Rafatullah
- School of Industrial Technology, Universiti Sains Malaysia, Penang 11800, Malaysia;
| | - Yong Shen Chua
- School of Chemical Sciences, Universiti Sains Malaysia, Penang 11800, Malaysia; (A.A.Y.); (Y.S.C.); (K.U.)
| | - Akil Ahmad
- School of Industrial Technology, Universiti Sains Malaysia, Penang 11800, Malaysia;
| | - Khalid Umar
- School of Chemical Sciences, Universiti Sains Malaysia, Penang 11800, Malaysia; (A.A.Y.); (Y.S.C.); (K.U.)
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Li H, Wang B, Deng S, Dai J, Shao S. Oxygen-containing functional groups on bioelectrode surface enhance expression of c-type cytochromes in biofilm and boost extracellular electron transfer. BIORESOURCE TECHNOLOGY 2019; 292:121995. [PMID: 31430670 DOI: 10.1016/j.biortech.2019.121995] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 08/09/2019] [Accepted: 08/10/2019] [Indexed: 06/10/2023]
Abstract
Introducing oxygen-containing functional groups is a common and convenient method to increase the hydrophilicity of bioelectrodes. In this study, the effect of oxygen-containing functional groups on biofilm was systematically studied to understand how the electron transfer between electrochemically active bacteria (EAB) and bioelectrode was boosted. After electrolysis pretreatment in sulfuric and nitric acid mixture, the oxygen content of the carbon fiber brushes increased from 4.6% to 30.9%. Comparing with the control, the maximum power density increased by 27.7%, while the anode resistance decreased by 21.8%, because charge transfer resistance significantly reduced. The analysis results showed that the content of c-type cytochromes (c-Cyts) in the EAB biofilm was four times higher than that in the control, while the biomass just slightly increased and the bacteria community was similar with that of the control. These findings suggested that the fundamental reason for the enhanced extracellular electron transfer between EAB and electrode was the increased c-Cyts.
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Affiliation(s)
- Hui Li
- School of Civil Engineering, Wuhan University, Wuhan 430072, China
| | - Bin Wang
- School of Civil Engineering, Wuhan University, Wuhan 430072, China
| | - Songping Deng
- School of Civil Engineering, Wuhan University, Wuhan 430072, China
| | - Jingcheng Dai
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Senlin Shao
- School of Civil Engineering, Wuhan University, Wuhan 430072, China.
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22
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Chong P, Erable B, Bergel A. Effect of pore size on the current produced by 3-dimensional porous microbial anodes: A critical review. BIORESOURCE TECHNOLOGY 2019; 289:121641. [PMID: 31300306 DOI: 10.1016/j.biortech.2019.121641] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 06/04/2019] [Accepted: 06/10/2019] [Indexed: 06/10/2023]
Abstract
Microbial anodes are the cornerstone of most electro-microbial processes. Designing 3-dimensional porous electrodes to increase the surface area of the electroactive biofilm they support is a key challenge in order to boost their performance. In this context, the critical review presented here aims to assess whether an optimal range of pore size may exist for the design of microbial anodes. Pore sizes of a few micrometres can enable microbial cells to penetrate but in conditions that do not favour efficient development of electroactive biofilms. Pores of a few tens of micrometres are subject to clogging. Sizes of a few hundreds of micrometres allow penetration of the biofilm inside the structure, but its development is limited by internal acidification. Consequently, pore sizes of a millimetre or so appear to be the most suitable. In addition, a simple theoretical approach is described to establish basis for porous microbial anode design.
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Affiliation(s)
- Poehere Chong
- Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INP, UPS, Toulouse, France
| | - Benjamin Erable
- Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INP, UPS, Toulouse, France
| | - Alain Bergel
- Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INP, UPS, Toulouse, France.
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23
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Zhao Y, Liu D, Huang W, Yang Y, Ji M, Nghiem LD, Trinh QT, Tran NH. Insights into biofilm carriers for biological wastewater treatment processes: Current state-of-the-art, challenges, and opportunities. BIORESOURCE TECHNOLOGY 2019; 288:121619. [PMID: 31202712 DOI: 10.1016/j.biortech.2019.121619] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 06/03/2019] [Accepted: 06/05/2019] [Indexed: 06/09/2023]
Abstract
Biofilm carriers play an important role in attached growth systems for wastewater treatment processes. This study systematically summarizes the traditional and novel biofilm carriers utilized in biofilm-based wastewater treatment technology. The advantages and disadvantages of traditional biofilm carriers are evaluated and discussed in light of basic property, biocompatibility and applicability. The characteristics, applications performance, and mechanism of novel carriers (including slow-release carriers, hydrophilic/electrophilic modified carriers, magnetic carriers and redox mediator carriers) in wastewater biological treatment were deeply analyzed. Slow release biofilm carriers are used to provide a solid substrate and electron donor for the growth of microorganisms and denitrification for anoxic and/or anaerobic bioreactors. Carriers with hydrophilic/electrophilic modified surface are applied for promoting biofilm formation. Magnetic materials-based carriers are employed to shorten the start-up time of bioreactor. Biofilm carriers acting as redox mediators are used to accelerate biotransformation of recalcitrant pollutants in industrial wastewater.
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Affiliation(s)
- Yingxin Zhao
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Duo Liu
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Wenli Huang
- College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Ying Yang
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Min Ji
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Long Duc Nghiem
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NWS 2007, Australia
| | - Quang Thang Trinh
- Institute of Research and Development, Duy Tan University, Da Nang 550000, Viet Nam
| | - Ngoc Han Tran
- Institute of Research and Development, Duy Tan University, Da Nang 550000, Viet Nam; NUS Environmental Research Institute, National University of Singapore, 1-Create Way, #15-02 Create Tower, Singapore 138602, Singapore.
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Champigneux P, Renault-Sentenac C, Bourrier D, Rossi C, Delia ML, Bergel A. Effect of surface roughness, porosity and roughened micro-pillar structures on the early formation of microbial anodes. Bioelectrochemistry 2019; 128:17-29. [DOI: 10.1016/j.bioelechem.2019.03.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 03/01/2019] [Accepted: 03/01/2019] [Indexed: 12/11/2022]
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25
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Kirmizakis P, Doherty R, Mendonça CA, Costeira R, Allen CCR, Ofterdinger US, Kulakov L. Enhancement of gasworks groundwater remediation by coupling a bio-electrochemical and activated carbon system. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:9981-9991. [PMID: 30739291 PMCID: PMC6469603 DOI: 10.1007/s11356-019-04297-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 01/18/2019] [Indexed: 05/03/2023]
Abstract
Here, we show the electrical response, bacterial community, and remediation of hydrocarbon-contaminated groundwater from a gasworks site using a graphite-chambered bio-electrochemical system (BES) that utilizes granular activated carbon (GAC) as both sorption agent and high surface area anode. Our innovative concept is the design of a graphite electrode chamber system rather than a classic non-conductive BES chamber coupled with GAC as part of the BES. The GAC BES is a good candidate as a sustainable remediation technology that provides improved degradation over GAC, and near real-time observation of associated electrical output. The BES chambers were effectively colonized by the bacterial communities from the contaminated groundwater. Principal coordinate analysis (PCoA) of UniFrac Observed Taxonomic Units shows distinct grouping of microbial types that are associated with the presence of GAC, and grouping of microbial types associated with electroactivity. Bacterial community analysis showed that β-proteobacteria (particularly the PAH-degrading Pseudomonadaceae) dominate all the samples. Rhodocyclaceae- and Comamonadaceae-related OTU were observed to increase in BES cells. The GAC BES (99% removal) outperformed the control graphite GAC chamber, as well as a graphite BES and a control chamber both filled with glass beads.
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Affiliation(s)
- Panagiotis Kirmizakis
- School of the Natural and Built Environment, Queen's University Belfast, Stranmillis Road, Belfast, BT9 5AG, UK
| | - Rory Doherty
- School of the Natural and Built Environment, Queen's University Belfast, Stranmillis Road, Belfast, BT9 5AG, UK.
| | - Carlos A Mendonça
- Department of Geophysics, University of São Paulo, Rua do Matão, São Paulo, 1226, Brazil
| | - Ricardo Costeira
- School of Biological Sciences, Queen's University Belfast, Lisburn Road, Belfast, BT9 7BL, UK
| | - Chris C R Allen
- School of Biological Sciences, Queen's University Belfast, Lisburn Road, Belfast, BT9 7BL, UK
- Institute for Global Food Security, Queen's University Belfast, Lisburn Road, Belfast, BT9 7BL, UK
| | - Ulrich S Ofterdinger
- School of the Natural and Built Environment, Queen's University Belfast, Stranmillis Road, Belfast, BT9 5AG, UK
| | - Leonid Kulakov
- School of Biological Sciences, Queen's University Belfast, Lisburn Road, Belfast, BT9 7BL, UK
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26
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Li J, Hu J, Yang C, Pu W, Hou H, Xu J, Liu B, Yang J. Enhanced detection of toxicity in wastewater using a 2D smooth anode based microbial fuel cell toxicity sensor. RSC Adv 2019; 9:8700-8706. [PMID: 35518652 PMCID: PMC9061729 DOI: 10.1039/c8ra10337b] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 03/10/2019] [Indexed: 01/29/2023] Open
Abstract
As the biological recognition element of microbial fuel cell (MFC) toxicity "shock" sensors, the electrode biofilm is perceived to be the crucial issue that determines the sensing performance. A carbon felt and indium tin oxide (ITO) film anode were utilized to examine the effects of anodic biofilm microstructure on MFC toxicity sensor performance, with Pb2+ as the target toxicant. The carbon felt anode based MFC (CF-MFC) established a linear relationship of Pb2+ concentration (C Pb2+ ) vs. voltage inhibition ratio (IR2h) at a C Pb2+ range of 0.1 mg L-1 to 1.2 mg L-1. The highest IR2h was only 38% for CF-MFC. An ITO anode based MFC (ITO-MFC) also revealed a linear relationship between C Pb2+ and IR2h at C Pb2+ of 0.1 mg L-1 to 1.5 mg L-1 but better sensing sensitivity compared with the CF-MFC. The IR2h of ITO-MFC gradually approached 100% as C Pb2+ further increased. The enhanced sensing sensitivity for the ITO anode possibly originated from the thin biofilm that resulted in the efficient exposure of exoelectrogens to Pb2+. The employment of 2D conductive metal oxide with a smooth surface as the anode was able to increase the MFC sensing reliability in real wastewater.
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Affiliation(s)
- Jianfeng Li
- School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST) Wuhan 430074 PR China +86-27-87792101 +86-27-87793948
- Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling 1037 Luoyu Road Wuhan Hubei 430074 China
| | - Jingping Hu
- School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST) Wuhan 430074 PR China +86-27-87792101 +86-27-87793948
- Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling 1037 Luoyu Road Wuhan Hubei 430074 China
| | - Changzhu Yang
- School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST) Wuhan 430074 PR China +86-27-87792101 +86-27-87793948
- Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling 1037 Luoyu Road Wuhan Hubei 430074 China
| | - Wenhong Pu
- School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST) Wuhan 430074 PR China +86-27-87792101 +86-27-87793948
- Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling 1037 Luoyu Road Wuhan Hubei 430074 China
| | - Huijie Hou
- School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST) Wuhan 430074 PR China +86-27-87792101 +86-27-87793948
- Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling 1037 Luoyu Road Wuhan Hubei 430074 China
| | - Jikun Xu
- School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST) Wuhan 430074 PR China +86-27-87792101 +86-27-87793948
- Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling 1037 Luoyu Road Wuhan Hubei 430074 China
| | - Bingchuan Liu
- School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST) Wuhan 430074 PR China +86-27-87792101 +86-27-87793948
- Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling 1037 Luoyu Road Wuhan Hubei 430074 China
| | - Jiakuan Yang
- School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST) Wuhan 430074 PR China +86-27-87792101 +86-27-87793948
- Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling 1037 Luoyu Road Wuhan Hubei 430074 China
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Jarosz M, Grudzień J, Kamiński K, Gawlak K, Wolski K, Nowakowska M, Sulka GD. Novel bioelectrodes based on polysaccharide modified gold surfaces and electrochemically active Lactobacillus rhamnosus GG biofilms. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.11.154] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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28
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PEDOT:PSS-based Multilayer Bacterial-Composite Films for Bioelectronics. Sci Rep 2018; 8:15293. [PMID: 30327574 PMCID: PMC6191412 DOI: 10.1038/s41598-018-33521-9] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 09/21/2018] [Indexed: 12/22/2022] Open
Abstract
Microbial electrochemical systems provide an environmentally-friendly means of energy conversion between chemical and electrical forms, with applications in wastewater treatment, bioelectronics, and biosensing. However, a major challenge to further development, miniaturization, and deployment of bioelectronics and biosensors is the limited thickness of biofilms, necessitating large anodes to achieve sufficient signal-to-noise ratios. Here we demonstrate a method for embedding an electroactive bacterium, Shewanella oneidensis MR-1, inside a conductive three-dimensional poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) matrix electropolymerized on a carbon felt substrate, which we call a multilayer conductive bacterial-composite film (MCBF). By mixing the bacteria with the PEDOT:PSS precursor in a flow-through method, we maintain over 90% viability of S. oneidensis during encapsulation. Microscopic analysis of the MCBFs reveal a tightly interleaved structure of bacteria and conductive PEDOT:PSS up to 80 µm thick. Electrochemical experiments indicate S. oneidensis in MCBFs can perform both direct and riboflavin-mediated electron transfer to PEDOT:PSS. When used in bioelectrochemical reactors, the MCBFs produce 20 times more steady-state current than native biofilms grown on unmodified carbon felt. This versatile approach to control the thickness of bacterial composite films and increase their current output has immediate applications in microbial electrochemical systems, including field-deployable environmental sensing and direct integration of microorganisms into miniaturized organic electronics.
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Logan BE, Zikmund E, Yang W, Rossi R, Kim KY, Saikaly PE, Zhang F. Impact of Ohmic Resistance on Measured Electrode Potentials and Maximum Power Production in Microbial Fuel Cells. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:8977-8985. [PMID: 29965737 DOI: 10.1021/acs.est.8b02055] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Low solution conductivity is known to adversely impact power generation in microbial fuel cells (MFCs), but its impact on measured electrode potentials has often been neglected in the reporting of electrode potentials. While errors in the working electrode (typically the anode) are usually small, larger errors can result in reported counter electrode potentials (typically the cathode) due to large distances between the reference and working electrodes or the use of whole cell voltages to calculate counter electrode potentials. As shown here, inaccurate electrode potentials impact conclusions concerning factors limiting power production in MFCs at higher current densities. To demonstrate how the electrochemical measurements should be adjusted using the solution conductivity, electrode potentials were estimated in MFCs with brush anodes placed close to the cathode (1 cm) or with flat felt anodes placed further from the cathode (3 cm) to avoid oxygen crossover to the anodes. The errors in the cathode potential for MFCs with brush anodes reached 94 mV using acetate in a 50 mM phosphate buffer solution. With a felt anode and acetate, cathode potential errors increased to 394 mV. While brush anode MFCs produced much higher power densities than flat anode MFCs under these conditions, this better performance was shown primarily to result from electrode spacing following correction of electrode potentials. Brush anode potentials corrected for solution conductivity were the same for brushes set 1 or 3 cm from the cathode, although the range of current produced was different due to ohmic losses with the larger distance. These results demonstrate the critical importance of using corrected electrode potentials to understand factors limiting power production in MFCs.
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Affiliation(s)
- Bruce E Logan
- Department of Civil and Environmental Engineering , The Pennsylvania State University , 231Q Sackett Building , University Park , Pennsylvania 16802 , United States
| | - Emily Zikmund
- Department of Civil and Environmental Engineering , The Pennsylvania State University , 231Q Sackett Building , University Park , Pennsylvania 16802 , United States
| | - Wulin Yang
- Department of Civil and Environmental Engineering , The Pennsylvania State University , 231Q Sackett Building , University Park , Pennsylvania 16802 , United States
| | - Ruggero Rossi
- Department of Civil and Environmental Engineering , The Pennsylvania State University , 231Q Sackett Building , University Park , Pennsylvania 16802 , United States
| | - Kyoung-Yeol Kim
- Department of Civil and Environmental Engineering , The Pennsylvania State University , 231Q Sackett Building , University Park , Pennsylvania 16802 , United States
| | - Pascal E Saikaly
- Biological and Environmental Sciences and Engineering Division, Water Desalination and Reuse Research Center , King Abdullah University of Science and Technology , Thuwal 23955-6900 , Saudi Arabia
| | - Fang Zhang
- School of Environment and State Key Joint Laboratory of Environment Simulation and Pollution Control , Tsinghua University , Beijing 100084 , China
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Champigneux P, Delia ML, Bergel A. Impact of electrode micro- and nano-scale topography on the formation and performance of microbial electrodes. Biosens Bioelectron 2018; 118:231-246. [PMID: 30098490 DOI: 10.1016/j.bios.2018.06.059] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Revised: 06/25/2018] [Accepted: 06/27/2018] [Indexed: 02/05/2023]
Abstract
From a fundamental standpoint, microbial electrochemistry is unravelling a thrilling link between life and materials. Technically, it may be the source of a large number of new processes such as microbial fuel cells for powering remote sensors, autonomous sensors, microbial electrolysers and equipment for effluent treatment. Microbial electron transfers are also involved in many natural processes such as biocorrosion. In these contexts, a huge number of studies have dealt with the impact of electrode materials, coatings and surface functionalizations but very few have focused on the effect of the surface topography, although it has often been pointed out as a key parameter impacting the performance of electroactive biofilms. The first part of the review gives an overview of the influence of electrode topography on abiotic electrochemical reactions. The second part recalls some basics of the effect of surface topography on bacterial adhesion and biofilm formation, in a broad domain reaching beyond the context of electroactivity. On these well-established bases, the effect of surface topography is reviewed and analysed in the field of electroactive biofilms. General trends are extracted and fundamental questions are pointed out, which should be addressed to boost future research endeavours. The objective is to provide basic guidelines useful to the widest possible range of research communities so that they can exploit surface topography as a powerful lever to improve, or to mitigate in the case of biocorrosion for instance, the performance of electrode/biofilm interfaces.
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Affiliation(s)
- Pierre Champigneux
- Laboratoire de Génie Chimique, CNRS, Université de Toulouse (INPT), 4 allée Emile Monso, 31432 Toulouse, France
| | - Marie-Line Delia
- Laboratoire de Génie Chimique, CNRS, Université de Toulouse (INPT), 4 allée Emile Monso, 31432 Toulouse, France
| | - Alain Bergel
- Laboratoire de Génie Chimique, CNRS, Université de Toulouse (INPT), 4 allée Emile Monso, 31432 Toulouse, France.
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31
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Smida H, Lebègue E, Bergamini JF, Barrière F, Lagrost C. Reductive electrografting of in situ produced diazopyridinium cations: Tailoring the interface between carbon electrodes and electroactive bacterial films. Bioelectrochemistry 2018; 120:157-165. [DOI: 10.1016/j.bioelechem.2017.12.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Revised: 12/06/2017] [Accepted: 12/08/2017] [Indexed: 11/24/2022]
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32
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Barbosa SG, Peixoto L, Soares OS, Pereira MFR, Heijne AT, Kuntke P, Alves MM, Pereira MA. Influence of carbon anode properties on performance and microbiome of Microbial Electrolysis Cells operated on urine. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.02.083] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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33
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Mohamed HO, Sayed ET, Cho H, Park M, Obaid M, Kim HY, Barakat NAM. Effective strategies for anode surface modification for power harvesting and industrial wastewater treatment using microbial fuel cells. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 206:228-235. [PMID: 29073581 DOI: 10.1016/j.jenvman.2017.10.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 08/30/2017] [Accepted: 10/09/2017] [Indexed: 06/07/2023]
Abstract
This study investigates three different strategies for anode surface treatment by doping superficial nitrogen groups on the anode surfaces of carbon cloth (CC) and carbon paper (CP). The chosen anodes were hydrothermally treated in the presence of an ammonia solution (AST), a mixture of nitric acid and sulfuric acid (AHT), and solid urea (UT) at 180 °C for 3 h. The utilized characterization techniques confirmed doping of nitrogen on the anode surfaces and a decrease in the oxygen-bonded carbon content. Furthermore, the results showed that the power and current densities were significantly affected by the surface modification techniques. Interestingly, the AST strategy achieved the highest power density of 159.3 mW-2 and 91.6 mWm-2, which revealed an increase in power of 115% and 56.8% for CC-AST and CP-AST, respectively. Additionally, the maximum coulombic efficiencies were 63.9% and 27.5% for the CC-AST and CP-AST anodes, respectively. Overall, these results highlight the significance of anode surface modification for enhancing MFC performance to generate electricity and treat actual wastewater.
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Affiliation(s)
- Hend Omar Mohamed
- Bionanosystem Engineering Department, Chonbuk National University, Jeonju 561-756, Republic of Korea
| | - Enas Taha Sayed
- Chemical Engineering Department, Faculty of Engineering, Minia University, Minia, Egypt
| | - Hyunjin Cho
- Department of Organic Materials and Fiber Engineering, Chonbuk National University, Jeonju 561-756, Republic of Korea
| | - Mira Park
- Department of Organic Materials and Fiber Engineering, Chonbuk National University, Jeonju 561-756, Republic of Korea
| | - M Obaid
- Bionanosystem Engineering Department, Chonbuk National University, Jeonju 561-756, Republic of Korea; Chemical Engineering Department, Faculty of Engineering, Minia University, Minia, Egypt
| | - Hak-Yong Kim
- Department of Organic Materials and Fiber Engineering, Chonbuk National University, Jeonju 561-756, Republic of Korea; Advanced Materials Institute for BIN Convergence, Department of BIN Convergence Technology, Chonbuk National University, Jeonju 561-756, Republic of Korea.
| | - Nasser A M Barakat
- Bionanosystem Engineering Department, Chonbuk National University, Jeonju 561-756, Republic of Korea; Chemical Engineering Department, Faculty of Engineering, Minia University, Minia, Egypt.
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Zhao Y, Ma Y, Li T, Dong Z, Wang Y. Modification of carbon felt anodes using double-oxidant HNO 3/H 2O 2 for application in microbial fuel cells. RSC Adv 2018; 8:2059-2064. [PMID: 35542616 PMCID: PMC9077460 DOI: 10.1039/c7ra12923h] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 12/29/2017] [Indexed: 11/21/2022] Open
Abstract
Carbon felt is widely used as an anode material in microbial fuel cells (MFCs) because of its high specific surface area, low cost, good electrical conductivity, and biocompatibility. In this paper, carbon felt samples were thermally treated with a mixed solution of concentrated HNO3 and 30% H2O2 with different volume ratios of 1 : 3 (MFC-1), 1 : 1 (MFC-2), and 3 : 1 (MFC-3). The electrochemical performance of the resulting MFCs were investigated by cyclic voltammetry, electrochemical impedance spectroscopy, chronoamperometry and polarization curve measurement. Fourier transform infrared spectroscopy and scanning electron microscopy were conducted to characterize the functional groups and the morphology of the carbon felts. After modification, the number of oxygen-containing functional groups in MFC-1, MFC-2, and MFC-3 increased compared with MFC-4 (bare anode MFC), the start-up time of the obtained MFCs was markedly shortened, and the charge transfer resistance of the bioanode was decreased. In MFC-2, the maximum power density was 758.2 mW m-2, which was 51.1% higher than MFC-4. Increases of oxygen-containing functional groups on the modified anodes favored the adsorption and growth of bacteria and acceleration of electron transport between the electrode and bacteria. Thus, the electrochemical characteristics of MFCs employing these anodes were improved.
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Affiliation(s)
- Yu Zhao
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology Taiyuan 030024 PR China
| | - Yan Ma
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology Taiyuan 030024 PR China
| | - Ting Li
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology Taiyuan 030024 PR China
| | - Zhishuai Dong
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology Taiyuan 030024 PR China
| | - Yuxue Wang
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology Taiyuan 030024 PR China
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Oliot M, Erable B, Solan MLD, Bergel A. Increasing the temperature is a relevant strategy to form microbial anodes intended to work at room temperature. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.10.110] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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36
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Santoro C, Arbizzani C, Erable B, Ieropoulos I. Microbial fuel cells: From fundamentals to applications. A review. JOURNAL OF POWER SOURCES 2017; 356:225-244. [PMID: 28717261 PMCID: PMC5465942 DOI: 10.1016/j.jpowsour.2017.03.109] [Citation(s) in RCA: 527] [Impact Index Per Article: 75.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 03/23/2017] [Indexed: 05/03/2023]
Abstract
In the past 10-15 years, the microbial fuel cell (MFC) technology has captured the attention of the scientific community for the possibility of transforming organic waste directly into electricity through microbially catalyzed anodic, and microbial/enzymatic/abiotic cathodic electrochemical reactions. In this review, several aspects of the technology are considered. Firstly, a brief history of abiotic to biological fuel cells and subsequently, microbial fuel cells is presented. Secondly, the development of the concept of microbial fuel cell into a wider range of derivative technologies, called bioelectrochemical systems, is described introducing briefly microbial electrolysis cells, microbial desalination cells and microbial electrosynthesis cells. The focus is then shifted to electroactive biofilms and electron transfer mechanisms involved with solid electrodes. Carbonaceous and metallic anode materials are then introduced, followed by an explanation of the electro catalysis of the oxygen reduction reaction and its behavior in neutral media, from recent studies. Cathode catalysts based on carbonaceous, platinum-group metal and platinum-group-metal-free materials are presented, along with membrane materials with a view to future directions. Finally, microbial fuel cell practical implementation, through the utilization of energy output for practical applications, is described.
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Affiliation(s)
- Carlo Santoro
- Department of Chemical and Biological Engineering, Center Micro-Engineered Materials (CMEM), University of New Mexico, 87106, Albuquerque, NM, USA
| | - Catia Arbizzani
- Department of Chemistry “Giacomo Ciamician”, University of Bologna, Via Selmi 2, 40126, Bologna, Italy
| | - Benjamin Erable
- University of Toulouse, CNRS, Laboratoire de Génie Chimique, CAMPUS INP – ENSIACET, 4 Allée Emile Monso, CS 84234, 31432, Toulouse Cedex 4, France
| | - Ioannis Ieropoulos
- Bristol BioEnergy Centre, Bristol Robotics Laboratory, T Block, University of the West of England, Frenchay Campus, Coldharbour Ln, Bristol, BS16 1QY, United Kingdom
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Mohamed HO, Obaid M, Sayed ET, Liu Y, Lee J, Park M, Barakat NAM, Kim HY. Electricity generation from real industrial wastewater using a single-chamber air cathode microbial fuel cell with an activated carbon anode. Bioprocess Biosyst Eng 2017; 40:1151-1161. [DOI: 10.1007/s00449-017-1776-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Accepted: 04/26/2017] [Indexed: 10/19/2022]
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38
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Engineering of Microbial Electrodes. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2017; 167:135-180. [PMID: 28864879 DOI: 10.1007/10_2017_16] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This chapter provides an overview of the current state-of-the-art in the engineering of microbial electrodes for application in microbial electrosynthesis. First, important functional aspects and requirements of basic materials for microbial electrodes are introduced, including the meaningful benchmarking of electrode performance, a comparison of electrode materials, and methods to improve microbe-electrode interaction. Suitable current collectors and composite materials that combine different functionalities are also discussed. Subsequently, the chapter focuses on the design of macroscopic electrode structures. Aspects such as mass transfer and electrode topology are touched upon, and a comparison of the performance of microbial electrodes relevant for practical application is provided. The chapter closes with an overall conclusion and outlook, highlighting the future prospects and challenges for the engineering of microbial electrodes toward practical application in the field of microbial electrosynthesis. Graphical Abstract.
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39
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Anodic biofilms as the interphase for electroactive bacterial growth on carbon veil. Biointerphases 2016; 11:031013. [PMID: 27609094 DOI: 10.1116/1.4962264] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The structure and activity of electrochemically active biofilms (EABs) are usually investigated on flat electrodes. However, real world applications such as wastewater treatment and bioelectrosynthesis require tridimensional electrodes to increase surface area and facilitate EAB attachment. The structure and activity of thick EABs grown on high surface area electrodes are difficult to characterize with electrochemical and microscopy methods. Here, the authors adopt a stacked electrode configuration to simulate the high surface and the tridimensional structure of an electrode for large-scale EAB applications. Each layer of the stacked electrode is independently characterized using confocal laser scanning microscopy (CLSM) and digital image processing. Shewanella oneidensis MR-1 biofilm on stacked carbon veil electrodes is grown under constant oxidative potentials (0, +200, and +400 mV versus Ag/AgCl) until a stable current output is obtained. The textural, aerial, and volumetric parameters extracted from CLSM images allow tracking of the evolution of morphological properties within the stacked electrodes. The electrode layers facing the bulk liquid show higher biovolumes compared with the inner layer of the stack. The electrochemical performance of S. oneidensis MR-1 is directly linked to the overall biofilm volume as well as connectivity between cell clusters.
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40
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Electricity Recovery from Municipal Sewage Wastewater Using a Hydrogel Complex Composed of Microbially Reduced Graphene Oxide and Sludge. MATERIALS 2016; 9:ma9090742. [PMID: 28773862 PMCID: PMC5457117 DOI: 10.3390/ma9090742] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 08/17/2016] [Accepted: 08/19/2016] [Indexed: 11/27/2022]
Abstract
Graphene oxide (GO) has recently been shown to be an excellent anode substrate for exoelectrogens. This study demonstrates the applicability of GO in recovering electricity from sewage wastewater. Anaerobic incubation of sludge with GO formed a hydrogel complex that embeds microbial cells via π-π stacking of microbially reduced GO. The rGO complex was electrically conductive (23 mS·cm−1) and immediately produced electricity in sewage wastewater under polarization at +200 mV vs. Ag/AgCl. Higher and more stable production of electricity was observed with rGO complexes (179–310 μA·cm−3) than with graphite felt (GF; 79–95 μA·cm−3). Electrochemical analyses revealed that this finding was attributable to the greater capacitance and smaller internal resistance of the rGO complex. Microbial community analysis showed abundances of Geobacter species in both rGO and GF complexes, whereas more diverse candidate exoelectrogens in the Desulfarculaceae family and Geothrix genus were particularly prominent in the rGO complex.
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41
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Tursun H, Liu R, Li J, Abro R, Wang X, Gao Y, Li Y. Carbon Material Optimized Biocathode for Improving Microbial Fuel Cell Performance. Front Microbiol 2016; 7:6. [PMID: 26858695 PMCID: PMC4726804 DOI: 10.3389/fmicb.2016.00006] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 01/05/2016] [Indexed: 11/25/2022] Open
Abstract
To improve the performance of microbial fuel cells (MFCs), the biocathode electrode material of double-chamber was optimized. Alongside the basic carbon fiber brush, three carbon materials namely graphite granules, activated carbon granules (ACG) and activated carbon powder, were added to the cathode-chambers to improve power generation. The result shows that the addition of carbon materials increased the amount of available electroactive microbes on the electrode surface and thus promote oxygen reduction rate, which improved the generation performance of the MFCs. The Output current (external resistance = 1000 Ω) greatly increased after addition of the three carbon materials and maximum power densities in current stable phase increased by 47.4, 166.1, and 33.5%, respectively. Additionally, coulombic efficiencies of the MFC increased by 16.3, 64.3, and 20.1%, respectively. These results show that MFC when optimized with ACG show better power generation, higher chemical oxygen demands removal rate and coulombic efficiency.
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Affiliation(s)
- Hairti Tursun
- Beijing Engineering Research Center of Environmental Material for Water Purification, Beijing University of Chemical Technology Beijing, China
| | - Rui Liu
- Beijing Engineering Research Center of Environmental Material for Water Purification, Beijing University of Chemical Technology Beijing, China
| | - Jing Li
- Beijing Engineering Research Center of Environmental Material for Water Purification, Beijing University of Chemical Technology Beijing, China
| | - Rashid Abro
- Beijing Key Laboratory of Membrane Science and Technology, College of Chemical Engineering, Beijing University of Chemical Technology Beijing, China
| | - Xiaohui Wang
- Beijing Engineering Research Center of Environmental Material for Water Purification, Beijing University of Chemical Technology Beijing, China
| | - Yanmei Gao
- Beijing Engineering Research Center of Environmental Material for Water Purification, Beijing University of Chemical Technology Beijing, China
| | - Yuan Li
- Beijing Engineering Research Center of Environmental Material for Water Purification, Beijing University of Chemical Technology Beijing, China
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42
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Huang L, Li X, Ren Y, Wang X. A monolithic three-dimensional macroporous graphene anode with low cost for high performance microbial fuel cells. RSC Adv 2016. [DOI: 10.1039/c5ra24718g] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Monolithic 3D-G which is inflexible and has a macroporous structure, crumpled matrix, good conductivity and low cost enhanced the electrogenesis of a MFC.
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Affiliation(s)
- Lihua Huang
- Laboratory of Environmental Biotechnology
- School of Environmental and Civil Engineering
- Jiangnan University
- Wuxi 214122
- PR China
| | - Xiufen Li
- Laboratory of Environmental Biotechnology
- School of Environmental and Civil Engineering
- Jiangnan University
- Wuxi 214122
- PR China
| | - Yueping Ren
- Laboratory of Environmental Biotechnology
- School of Environmental and Civil Engineering
- Jiangnan University
- Wuxi 214122
- PR China
| | - Xinhua Wang
- Laboratory of Environmental Biotechnology
- School of Environmental and Civil Engineering
- Jiangnan University
- Wuxi 214122
- PR China
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43
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Feng C, Liu Y, Li Q, Che Y, Li N, Wang X. Quaternary Ammonium Compound in Anolyte without Functionalization Accelerates the Startup of Bioelectrochemical Systems using Real Wastewater. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2015.12.069] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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44
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High catalytic activity and pollutants resistivity using Fe-AAPyr cathode catalyst for microbial fuel cell application. Sci Rep 2015; 5:16596. [PMID: 26563922 PMCID: PMC4643260 DOI: 10.1038/srep16596] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 09/14/2015] [Indexed: 11/12/2022] Open
Abstract
For the first time, a new generation of innovative non-platinum group metal catalysts based on iron and aminoantipyrine as precursor (Fe-AAPyr) has been utilized in a membraneless single-chamber microbial fuel cell (SCMFC) running on wastewater. Fe-AAPyr was used as an oxygen reduction catalyst in a passive gas-diffusion cathode and implemented in SCMFC design. This catalyst demonstrated better performance than platinum (Pt) during screening in “clean” conditions (PBS), and no degradation in performance during the operation in wastewater. The maximum power density generated by the SCMFC with Fe-AAPyr was 167 ± 6 μW cm−2 and remained stable over 16 days, while SCMFC with Pt decreased to 113 ± 4 μW cm−2 by day 13, achieving similar values of an activated carbon based cathode. The presence of S2− and showed insignificant decrease of ORR activity for the Fe-AAPyr. The reported results clearly demonstrate that Fe-AAPyr can be utilized in MFCs under the harsh conditions of wastewater.
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45
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Santoro C, Babanova S, Artyushkova K, Cornejo JA, Ista L, Bretschger O, Marsili E, Atanassov P, Schuler AJ. Influence of anode surface chemistry on microbial fuel cell operation. Bioelectrochemistry 2015; 106:141-9. [PMID: 26025340 DOI: 10.1016/j.bioelechem.2015.05.002] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2014] [Revised: 04/23/2015] [Accepted: 05/03/2015] [Indexed: 11/18/2022]
Abstract
Self-assembled monolayers (SAMs) modified gold anodes are used in single chamber microbial fuel cells for organic removal and electricity generation. Hydrophilic (N(CH3)3(+), OH, COOH) and hydrophobic (CH3) SAMs are examined for their effect on bacterial attachment, current and power output. The different substratum chemistry affects the community composition of the electrochemically active biofilm formed and thus the current and power output. Of the four SAM-modified anodes tested, N(CH3)3(+) results in the shortest start up time (15 days), highest current achieved (225 μA cm(-2)) and highest MFC power density (40 μW cm(-2)), followed by COOH (150 μA cm(-2) and 37 μW cm(-2)) and OH (83 μA cm(-2) and 27 μW cm(-2)) SAMs. Hydrophobic SAM decreases electrochemically active bacteria attachment and anode performance in comparison to hydrophilic SAMs (CH3 modified anodes 7 μA cm(-2) anodic current and 1.2 μW cm(-2) MFC's power density). A consortium of Clostridia and δ-Proteobacteria is found on all the anode surfaces, suggesting a synergistic cooperation under anodic conditions.
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Affiliation(s)
- Carlo Santoro
- Center for Micro-Engineered Materials (CMEM), Department of Chemical & Biological Engineering, University of New Mexico, Albuquerque, NM 87131, USA; Center Emerging Energy Technologies (CEET), Department of Civil Engineering, University of New Mexico, Albuquerque, NM 87131, USA
| | - Sofia Babanova
- Center for Micro-Engineered Materials (CMEM), Department of Chemical & Biological Engineering, University of New Mexico, Albuquerque, NM 87131, USA
| | - Kateryna Artyushkova
- Center for Micro-Engineered Materials (CMEM), Department of Chemical & Biological Engineering, University of New Mexico, Albuquerque, NM 87131, USA
| | - Jose A Cornejo
- Center for Micro-Engineered Materials (CMEM), Department of Chemical & Biological Engineering, University of New Mexico, Albuquerque, NM 87131, USA
| | - Linnea Ista
- Center for Biochemical Engineering, Department of Chemical & Biological Engineering, University of New Mexico, Albuquerque, NM 87131, USA
| | | | - Enrico Marsili
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, 60 Nanyang Drive, 637551 Singapore, Singapore
| | - Plamen Atanassov
- Center for Micro-Engineered Materials (CMEM), Department of Chemical & Biological Engineering, University of New Mexico, Albuquerque, NM 87131, USA.
| | - Andrew J Schuler
- Center Emerging Energy Technologies (CEET), Department of Civil Engineering, University of New Mexico, Albuquerque, NM 87131, USA
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Artyushkova K, Cornejo JA, Ista LK, Babanova S, Santoro C, Atanassov P, Schuler AJ. Relationship between surface chemistry, biofilm structure, and electron transfer in Shewanella anodes. Biointerphases 2015; 10:019013. [PMID: 25743616 PMCID: PMC5849046 DOI: 10.1116/1.4913783] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2014] [Revised: 02/13/2015] [Accepted: 02/18/2015] [Indexed: 11/17/2022] Open
Abstract
A better understanding of how anode surface properties affect growth, development, and activity of electrogenic biofilms has great potential to improve the performance of bioelectrochemical systems such as microbial fuel cells. The aim of this paper was to determine how anodes with specific exposed functional groups (-N(CH3)3 (+), -COOH, -OH, and -CH3), created using ω-substituted alkanethiolates self-assembled monolayers attached to gold, affect the surface properties and functional performance of electrogenic Shewanella oneidensis MR-1 biofilms. A combination of spectroscopic, microscopic, and electrochemical techniques was used to evaluate how electrode surface chemistry influences morphological, chemical, and functional properties of S. oneidensis MR-1 biofilms, in an effort to develop improved electrode materials and structures. Positively charged, highly functionalized, hydrophilic surfaces were beneficial for growth of uniform biofilms with the smallest cluster sizes and intercluster diffusion distances, and yielding the most efficient electron transfer. The authors derived these parameters based on 3D morphological features of biofilms that were directly linked to functional properties of the biofilm during growth and that, during polarization, were directly connected to the efficiency of electron transfer to the anode. Our results indicate that substratum chemistry affects not only primary attachment, but subsequent biofilm development and bacterial physiology.
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Affiliation(s)
- Kateryna Artyushkova
- Department of Chemical and Biological Engineering, Center for Emerging Energy Technology, The University of New Mexico, Albuquerque, New Mexico 87131
| | - Jose A Cornejo
- Department of Chemical and Biological Engineering, Center for Emerging Energy Technology, The University of New Mexico, Albuquerque, New Mexico 87131
| | - Linnea K Ista
- Department of Chemical and Biological Engineering, Center for Emerging Energy Technology, The University of New Mexico, Albuquerque, New Mexico 87131
| | - Sofia Babanova
- Department of Chemical and Biological Engineering, Center for Emerging Energy Technology, The University of New Mexico, Albuquerque, New Mexico 87131
| | - Carlo Santoro
- Department of Chemical and Biological Engineering, Center for Emerging Energy Technology, The University of New Mexico, Albuquerque, New Mexico 87131
| | - Plamen Atanassov
- Department of Chemical and Biological Engineering, Center for Emerging Energy Technology, The University of New Mexico, Albuquerque, New Mexico 87131
| | - Andrew J Schuler
- Department of Civil Engineering, The University of New Mexico, Albuquerque, New Mexico 87131
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47
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Santoro C, Serov A, Narvaez Villarrubia CW, Stariha S, Babanova S, Schuler AJ, Artyushkova K, Atanassov P. Double-chamber microbial fuel cell with a non-platinum-group metal Fe-N-C cathode catalyst. CHEMSUSCHEM 2015; 8:828-834. [PMID: 25606716 DOI: 10.1002/cssc.201402570] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 09/09/2014] [Indexed: 06/04/2023]
Abstract
Non-Pt-group metal (non-PGM) materials based on transition metal-nitrogen-carbon (M-N-C) and derived from iron salt and aminoantipyrine (Fe-AAPyr) of mebendazole (Fe-MBZ) were studied for the first time as cathode catalysts in double-chamber microbial fuel cells (DCMFCs). The pH value of the cathode chamber was varied from 6 to 11 to elucidate the activity of those catalysts in acidic to basic conditions. The Fe-AAPyr- and Fe-MBZ-based cathodes were compared to a Pt-based cathode used as a baseline. Pt cathodes performed better at pH 6-7.5 and had similar performances at pH 9 and a substantially lower performance at pH 11 at which Fe-AAPyr and Fe-MBZ demonstrated their best electrocatalytic activity. The power density achieved with Pt constantly decreased from 94-99 μW cm(-2) at pH 6 to 55-57 μW cm(-2) at pH 11. In contrast, the power densities of DCMFs using Fe-AAPyr and Fe-MBZ were 61-68 μW cm(-2) at pH 6, decreased to 51-58 μW cm(-2) at pH 7.5, increased to 65-75 μW cm(-2) at pH 9, and the highest power density was achieved at pH 11 (68-80 μW cm(-2) ). Non-PGM cathode catalysts can be manufactured at the fraction of the cost of the Pt-based ones. The higher performance and lower cost indicates that non-PGM catalysts may be a viable materials choice in large-scale microbial fuel cells.
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Affiliation(s)
- Carlo Santoro
- Center for Emerging Energy Technologies, The University of New Mexico, 1 University of New Mexico-MSC01 1120, Albuquerque, NM 87131 (USA)
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