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Ye J, Zhang T, Hao Y, Tan W, Su H, Wang Y, Feng Q, Xu L. Effects of Co 3O 4 modified with MoS 2 on microbial fuel cells performance. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 367:121966. [PMID: 39068783 DOI: 10.1016/j.jenvman.2024.121966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 06/03/2024] [Accepted: 07/17/2024] [Indexed: 07/30/2024]
Abstract
In this study, Co3O4@MoS2 is prepared as anodic catalytic material for microbial fuel cells (MFCs). As the mass fraction of MoS2 is 20%, the best performance of Co3O4@MoS2 composite catalytic material is achieved, and the addition of MoS2 enhances both the electrical conductivity and catalytic performance of the composite catalyst. Through the structural characterization of Co3O4@MoS2 composite catalytic material, nanorod-like Co3O4 and lamellar MoS2 interweaved and stacked each other, and the agglomeration of Co3O4 is weakened. Among the four groups of single-chamber MFCs constructed, the Co3O4@MoS2-MFC shows the best power production performance with a maximum stable output voltage of to 539 mV and a maximum power density of up to 2221 mW/m2. Additionally, the ammonia nitrogen removal rate of the MFCs loaded with catalysts is enhanced by about 10% compared with the blank carbon cloth MFC. Overall, the findings suggest that Co3O4@MoS2 composite catalysts can significantly improve the performance of MFCs, making them more effective for both energy production and wastewater treatment.
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Affiliation(s)
- Jingyi Ye
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China.
| | - Teng Zhang
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China.
| | - Yu Hao
- Science and Technology Department, Chongqing Vocational Institute of Engineering, Chongqing, 402260, China.
| | - Wenwen Tan
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China.
| | - Huaren Su
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China.
| | - Yong Wang
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China.
| | - Qi Feng
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China.
| | - Longjun Xu
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China.
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Yalcinkaya F, Torres-Mendieta R, Hruza J, Vávrová A, Svobodová L, Pietrelli A, Ieropoulos I. Nanofiber applications in microbial fuel cells for enhanced energy generation: a mini review. RSC Adv 2024; 14:9122-9136. [PMID: 38500621 PMCID: PMC10945513 DOI: 10.1039/d4ra00674g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 03/07/2024] [Indexed: 03/20/2024] Open
Abstract
Microbial fuel cells (MFCs) represent simple devices that harness the metabolic activities of microorganisms to produce electrical energy from diverse sources such as organic waste and sustainable biomass. Because of their unique advantage to generate sustainable energy, through the employment of biodegradable and repurposed waste materials, the development of MFCs has garnered considerable interest. Critical elements are typically the electrodes and separator. This mini-review article presents a critical assessment of nanofiber technology used as electrodes and separators in MFCs to enhance energy generation. In particular, the review highlights the application of nanofiber webs in each part of MFCs including anodes, cathodes, and membranes and their influence on energy generation. The role of nanofiber technology in this regard is then analysed in detail, focusing on improved electron transfer rate, enhanced biofilm formation, and enhanced durability and stability. In addition, the challenges and opportunities associated with integrating nanofibers into MFCs are discussed, along with suggestions for future research in this field. Significant developments in MFCs over the past decade have led to a several-fold increase in achievable power density, yet further improvements in performance and the exploration of cost-effective materials remain promising areas for further advancement. This review demonstrates the great promise of nanofiber-based electrodes and separators in future applications of MFCs.
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Affiliation(s)
- Fatma Yalcinkaya
- Department of Environmental Technology, Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec Studentská 1402/2 461 17 Liberec Czech Republic
| | - Rafael Torres-Mendieta
- Department of Chemistry, Faculty of Science, Humanities and Education, Technical University of Liberec Studentská 1402/2 46117 Liberec Czech Republic
| | - Jakub Hruza
- Department of Environmental Technology, Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec Studentská 1402/2 461 17 Liberec Czech Republic
| | - Andrea Vávrová
- Department of Nursing and Emergency Care, Faculty of Health Studies, Technical University of Liberec Studentská 1402/2 46117 Liberec Czech Republic
| | - Lucie Svobodová
- Department of Material Science, Faculty of Mechanical Engineering, Technical University of Liberec Studentská 1402/2 46117 Liberec Czech Republic
| | - Andrea Pietrelli
- Université de Lyon, INSA Lyon, Université Lyon 1, Ecole Centrale de Lyon, CNRS, Ampère, UMR5005 F-69621 Villeurbanne France
| | - Ioannis Ieropoulos
- Civil, Maritime and Environmental Engineering Department, University of Southampton Southampton SO16 7QF UK
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Palanisamy G, Thangarasu S, Oh TH. Effect of Sulfonated Inorganic Additives Incorporated Hybrid Composite Polymer Membranes on Enhancing the Performance of Microbial Fuel Cells. Polymers (Basel) 2023; 15:polym15051294. [PMID: 36904534 PMCID: PMC10006918 DOI: 10.3390/polym15051294] [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: 02/06/2023] [Revised: 02/27/2023] [Accepted: 02/28/2023] [Indexed: 03/08/2023] Open
Abstract
Microbial fuel cells (MFCs) provide considerable benefits in the energy and environmental sectors for producing bioenergy during bioremediation. Recently, new hybrid composite membranes with inorganic additives have been considered for MFC application to replace the high cost of commercial membranes and improve the performances of cost-effective polymers, such as MFC membranes. The homogeneous impregnation of inorganic additives in the polymer matrix effectively enhances the physicochemical, thermal, and mechanical stabilities and prevents the crossover of substrate and oxygen through polymer membranes. However, the typical incorporation of inorganic additives in the membrane decreases the proton conductivity and ion exchange capacity. In this critical review, we systematically explained the impact of sulfonated inorganic additives (such as (sulfonated) sSiO2, sTiO2, sFe3O4, and s-graphene oxide) on different kinds of hybrid polymers (such as PFSA, PVDF, SPEEK, SPAEK, SSEBS, and PBI) membrane for MFC applications. The membrane mechanism and interaction between the polymers and sulfonated inorganic additives are explained. The impact of sulfonated inorganic additives on polymer membranes is highlighted based on the physicochemical, mechanical, and MFC performances. The core understandings in this review can provide vital direction for future development.
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Modified Cellulose Proton-Exchange Membranes for Direct Methanol Fuel Cells. Polymers (Basel) 2023; 15:polym15030659. [PMID: 36771960 PMCID: PMC9920170 DOI: 10.3390/polym15030659] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/13/2023] [Accepted: 01/26/2023] [Indexed: 02/03/2023] Open
Abstract
A direct methanol fuel cell (DMFC) is an excellent energy device in which direct conversion of methanol to energy occurs, resulting in a high energy conversion rate. For DMFCs, fluoropolymer copolymers are considered excellent proton-exchange membranes (PEMs). However, the high cost and high methanol permeability of commercial membranes are major obstacles to overcome in achieving higher performance in DMFCs. Novel developments have focused on various reliable materials to decrease costs and enhance DMFC performance. From this perspective, cellulose-based materials have been effectively considered as polymers and additives with multiple concepts to develop PEMs for DMFCs. In this review, we have extensively discussed the advances and utilization of cost-effective cellulose materials (microcrystalline cellulose, nanocrystalline cellulose, cellulose whiskers, cellulose nanofibers, and cellulose acetate) as PEMs for DMFCs. By adding cellulose or cellulose derivatives alone or into the PEM matrix, the performance of DMFCs is attained progressively. To understand the impact of different structures and compositions of cellulose-containing PEMs, they have been classified as functionalized cellulose, grafted cellulose, acid-doped cellulose, cellulose blended with different polymers, and composites with inorganic additives.
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Srivastava RK, Sarangi PK, Vivekanand V, Pareek N, Shaik KB, Subudhi S. Microbial fuel cells for waste nutrients minimization: Recent process technologies and inputs of electrochemical active microbial system. Microbiol Res 2022; 265:127216. [DOI: 10.1016/j.micres.2022.127216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 09/19/2022] [Accepted: 09/27/2022] [Indexed: 11/30/2022]
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Barakat NAM, Ali RH, Kim HY, Nassar MM, Fadali OA, Tolba GMK, Moustafa HM, Ali MA. Carbon Nanofibers-Sheathed Graphite Rod Anode and Hydrophobic Cathode for Improved Performance Industrial Wastewater-Driven Microbial Fuel Cells. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3961. [PMID: 36432248 PMCID: PMC9696571 DOI: 10.3390/nano12223961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 10/30/2022] [Accepted: 11/05/2022] [Indexed: 06/16/2023]
Abstract
Carbon nanofiber-decorated graphite rods are introduced as effective and low-cost anodes for industrial wastewater-driven microbial fuel cells. Carbon nanofiber deposition on the surface of the graphite rods could be performed by the electrospinning of polyacrylonitrile/N,N-Dimethylformamide solution using the rod as nanofiber collector, which was calcined under inert atmosphere. The experimental results indicated that at 10 min electrospinning time, the proposed graphite anode demonstrates very good performance compared to the commercial anodes. Typically, the generated power density from sugarcane industry wastewater-driven air cathode microbial fuel cells were 13 ± 0.3, 23 ± 0.7, 43 ± 1.3, and 185 ± 7.4 mW/m2 using carbon paper, carbon felt, carbon cloth, and graphite rod coated by 10-min electrospinning time carbon nanofibers anodes, respectively. The distinct performance of the proposed anode came from creating 3D carbon nanofiber layer filled with the biocatalyst. Moreover, to annihilate the internal cell resistance, a membrane-less cell was assembled by utilizing a poly(vinylidene fluoride) electrospun nanofiber layer-coated cathode. This novel strategy inspired a highly hydrophobic layer on the cathode surface, preventing water leakage to avoid utilizing the membrane. However, in both anode and cathode modifications, the electrospinning time should be optimized. The best results were obtained at 5 and 10 min for the cathode and anode, respectively.
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Affiliation(s)
- Nasser A. M. Barakat
- Chemical Engineering Department, Faculty of Engineering, Minia University, Minya 61519, Egypt
| | - Rasha H. Ali
- Chemical Engineering Department, Faculty of Engineering, Minia University, Minya 61519, Egypt
| | - Hak Yong Kim
- Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju 54896, Korea
- Department of Organic Materials and Fiber Engineering, Jeonbuk National University, Jeonju 54896, Korea
| | - Mamdouh M. Nassar
- Chemical Engineering Department, Faculty of Engineering, Minia University, Minya 61519, Egypt
| | - Olfat A. Fadali
- Chemical Engineering Department, Faculty of Engineering, Minia University, Minya 61519, Egypt
| | - Gehan M. K. Tolba
- Chemical Engineering Department, Faculty of Engineering, Minia University, Minya 61519, Egypt
| | - Hager M. Moustafa
- Chemical Engineering Department, Faculty of Engineering, Minia University, Minya 61519, Egypt
| | - Marwa A. Ali
- Chemical Engineering Department, Faculty of Engineering, Minia University, Minya 61519, Egypt
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