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Olabi AG, Wilberforce T, Sayed ET, Elsaid K, Rezk H, Abdelkareem MA. Recent progress of graphene based nanomaterials in bioelectrochemical systems. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 749:141225. [PMID: 32814206 DOI: 10.1016/j.scitotenv.2020.141225] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 07/11/2020] [Accepted: 07/23/2020] [Indexed: 06/11/2023]
Abstract
The application of graphene (Gr) to microbial fuel cells (MFCs) and microbial electrolysis cell (MECs) is considered a very promising approach in terms of enhancing their performance. The superior Gr properties of high electrical and thermal conductivities, along with: superior specific surface area, high electron mobility, and mechanical strength, are the key features that endorse this. Factors impeding the advancement of a microbial fuel cell into commercialization involve primarily the cost of their components, and their production on a small scale. Gr with such outstanding characteristics can help mitigate these challenges, when used as electrode material. The application of Gr as an anode material improves the efficiency of electron transfer and bacterial attachment. When used as a cathode material, it supports the oxygen reduction reaction. This investigation, presents a thorough analysis of the feasibility of Gr as an electrode material in both MFC and MEC applications - based on experimental results from the investigation. Current technological advancements in the implementation of Gr in MFC and MEC are also highlighted in this review. To summarise, the investigation exposes critical issues impeding the advancement of microbial fuel cells, and proposes possible solutions to mitigate these challenges.
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Affiliation(s)
- A G Olabi
- Dept. of Sustainable and Renewable Energy Engineering, University of Sharjah, P.O. Box 27272, Sharjah, United Arab Emirates; Mechanical Engineering and Design, Aston University, School of Engineering and Applied Science, Aston Triangle, Birmingham B4 7ET, UK.
| | - Tabbi Wilberforce
- Mechanical Engineering and Design, Aston University, School of Engineering and Applied Science, Aston Triangle, Birmingham B4 7ET, UK
| | - Enas Taha Sayed
- Center for Advanced Materials Research, University of Sharjah, PO Box 27272, Sharjah, United Arab Emirates; Chemical Engineering Department, Minia University, Elminia, Egypt
| | - Khaled Elsaid
- Chemical Engineering Department, Texas A&M University, College Station, TX 77843-3122, USA
| | - Hegazy Rezk
- College of Engineering at Wadi Addawaser, Prince Sattam Bin Abdulaziz University, Saudi Arabia; Electrical Engineering Department, Faculty of Engineering, Minia University, Egypt
| | - Mohammad Ali Abdelkareem
- Dept. of Sustainable and Renewable Energy Engineering, University of Sharjah, P.O. Box 27272, Sharjah, United Arab Emirates; Center for Advanced Materials Research, University of Sharjah, PO Box 27272, Sharjah, United Arab Emirates; Chemical Engineering Department, Minia University, Elminia, Egypt.
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Abstract
Graphene materials (GMs) are being investigated for multiple microbiological applications because of their unique physicochemical characteristics including high electrical conductivity, large specific surface area, and robust mechanical strength. In the last decade, studies on the interaction of GMs with bacterial cells appear conflicting. On one side, GMs have been developed to promote the proliferation of electroactive bacteria on the surface of electrodes in bioelectrochemical systems or to accelerate interspecies electron transfer during anaerobic digestion. On the other side, GMs with antibacterial properties have been synthesized to prevent biofilm formation on membranes for water treatment, on medical equipment, and on tissue engineering scaffolds. In this review, we discuss the mechanisms and factors determining the positive or negative impact of GMs on bacteria. Furthermore, we examine the bacterial growth-promoting and antibacterial applications of GMs and debate their practicability.
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Affiliation(s)
- Tian Zhang
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, PR China
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, PR China
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, PR China
| | - Pier-Luc Tremblay
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, PR China
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, PR China
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Abstract
The world energy production trumped by the exhaustive utilization of fossil fuels has highlighted the importance of searching for an alternative energy source that exhibits great potential. Ongoing efforts are being implemented to resolve the challenges regarding the preliminary processes before conversion to bioenergy such as pretreatment, enzymatic hydrolysis and cultivation of biomass. Nanotechnology has the ability to overcome the challenges associated with these biomass sources through their distinctive active sites for various reactions and processes. In this review, the potential of nanotechnology incorporated into these biomasses as an aid or addictive to enhance the efficiency of bioenergy generation has been reviewed. The fundamentals of nanomaterials along with their various bioenergy applications were discussed in-depth. Moreover, the optimization and enhancement of bioenergy production from lignocellulose, microalgae and wastewater using nanomaterials are comprehensively evaluated. The distinctive features of these nanomaterials contributing to better performance of biofuels, biodiesel, enzymes and microbial fuel cells are also critically reviewed. Subsequently, future trends and research needs are highlighted based on the current literature.
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Li M, Zhong K, Zhang L, Wang S, Zhang H, Huang Y, Chen S, Mai H, Zhang N. Cobalt‐based Catalysts Modified Cathode for Enhancing Bioelectricity Generation and Wastewater Treatment in Air‐breathing Cathode Microbial Fuel Cells. ELECTROANAL 2019. [DOI: 10.1002/elan.201900161] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Meng Li
- School of Environmental Science and EngineeringGuangzhou University, Guangzhou Higher Education Mega Center Guangzhou 510006 PR China
- School of Environment and EnergySouth China University of Technology, Guangzhou Higher Education Mega Center Guangzhou 510006 PR China
| | - Kengqiang Zhong
- School of Environmental Science and EngineeringGuangzhou University, Guangzhou Higher Education Mega Center Guangzhou 510006 PR China
| | - Liqiu Zhang
- School of Civil EngineeringGuangzhou University Guangzhou 510006 PR China
| | - Shengdan Wang
- School of Environmental Science and EngineeringGuangzhou University, Guangzhou Higher Education Mega Center Guangzhou 510006 PR China
| | - Hongguo Zhang
- School of Environmental Science and EngineeringGuangzhou University, Guangzhou Higher Education Mega Center Guangzhou 510006 PR China
- Guangzhou University-Linköping University Research Center on Urban Sustainable DevelopmentGuangzhou University Guangzhou 510006 PR China
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, School of Environmental Science and EngineeringGuangzhou University Guangzhou 510006 PR China
| | - Yu Huang
- School of Environmental Science and EngineeringGuangzhou University, Guangzhou Higher Education Mega Center Guangzhou 510006 PR China
| | - Shi Chen
- School of Environmental Science and EngineeringGuangzhou University, Guangzhou Higher Education Mega Center Guangzhou 510006 PR China
| | - Hanjian Mai
- School of Environmental Science and EngineeringGuangzhou University, Guangzhou Higher Education Mega Center Guangzhou 510006 PR China
| | - Nan Zhang
- School of Environmental Science and EngineeringGuangzhou University, Guangzhou Higher Education Mega Center Guangzhou 510006 PR China
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Graphene oxide electrodeposited electrode enhances start-up and selective enrichment of exoelectrogens in bioelectrochemical systems. Sci Rep 2017; 7:13726. [PMID: 29062127 PMCID: PMC5653775 DOI: 10.1038/s41598-017-14200-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 10/06/2017] [Indexed: 01/06/2023] Open
Abstract
This study seeks to assess the impact that the anodic electrodeposition of graphene oxide (GO) has on the start-up process and on the development of microbial communities on the anode of BESs. The GO electrodeposited electrodes were characterised in abiotic conditions to verify the extent of the modification and were then transferred to a bioelectrochemical reactor. Results showed that the modified electrode allowed for a reduced start-up time compared to the control electrode. After three months, high throughput sequencing was performed, revealing that electrochemically reduced graphene oxide acts as a selective agent toward exoelectrogenic bacteria as Geobacter. Overall, this study shows that GO modified electrodes enhance biofilm build up in BES.
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