1
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Khanjanzadeh H, Park BD, Pirayesh H. Intelligent pH- and ammonia-sensitive indicator films using neutral red immobilized onto cellulose nanofibrils. Carbohydr Polym 2022; 296:119910. [DOI: 10.1016/j.carbpol.2022.119910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 07/17/2022] [Accepted: 07/18/2022] [Indexed: 11/02/2022]
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2
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Sharif HMA, Mahmood A, Djellabi R, Cheng HY, Dong H, Ajibade FO, Ali I, Yang B, Wang AJ. Utilization of electrochemical treatment and surface reconstruction to achieve long lasting catalyst for NO x removal. JOURNAL OF HAZARDOUS MATERIALS 2021; 401:123440. [PMID: 33113717 DOI: 10.1016/j.jhazmat.2020.123440] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 06/23/2020] [Accepted: 07/05/2020] [Indexed: 06/11/2023]
Abstract
The development of catalysts has seen tremendous growth recently but most strategies only report utilization of catalysts for a few initial cycles without taking into account the influence of oxygen poisoning. Here, the magnetic Fe3O4@EDTA-Fe (MEFe, having a core Fe3O4 particle with EDTA-Fe coating) was investigated as a model catalyst for long-term recycling for the removal of nitrogen oxide (NOx) from NO/O2 mixture, followed by N2O recovery. The concentration of oxygen in the flue gas was found to have a strong impact on NOx absorption and catalytic response. To circumvent the oxygen poisoning, the MEFe was subjected to electrochemical treatment in the presence of neutral red (N.R.) and NO removal efficiency was ∼95 % noted. Furthermore, the surface of the catalyst degraded significantly (p < 0.05) after 6-7 repetitive cycling due to surface catalytic reactions, surface poisoning, oxidation of metallic species as well as residual stresses. The MEFe surface was reconstructed after 7 cycles using EDTA solution and Fe source to achieve similar surface coating as the fresh MEFe catalyst. The reconstructed MEFe exhibited similar NOx absorption capability as the fresh MEFe and the reconstruction loop was repeated several times to achieve long term cycling, which make the catalyst cost-effective. Hence, it is proposed that a successful regeneration process can be employed for promising, sustainable and long-lasting catalytic treatment of air pollutants.
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Affiliation(s)
- Hafiz Muhammad Adeel Sharif
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China; Department of Environmental Engineering, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518055, PR China
| | - Asif Mahmood
- School of Chemical and Biomolecular Engineering, The University of Sydney, Australia
| | - Ridha Djellabi
- Department of Environmental Engineering, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518055, PR China; Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China
| | - Hao-Yi Cheng
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China.
| | - Heng Dong
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Fidelis Odedishemi Ajibade
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China
| | - Imran Ali
- Department of Environmental Engineering, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518055, PR China
| | - Bo Yang
- Department of Environmental Engineering, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518055, PR China
| | - Ai-Jie Wang
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China.
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3
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Elshobary ME, Zabed HM, Yun J, Zhang G, Qi X. Recent insights into microalgae-assisted microbial fuel cells for generating sustainable bioelectricity. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 2021. [DOI: 10.1016/j.ijhydene.2020.06.251] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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4
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The Molecular and Macromolecular Level of Carbon Nanotube Modification Via Diazonium Chemistry: Emphasis on the 2010s Years. CHEMISTRY AFRICA 2020. [DOI: 10.1007/s42250-020-00144-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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5
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Svalova TS, Saigushkina AA, Medvedeva MV, Malysheva NN, Zhdanovskikh VO, Kozitsin IV, Kozitsina AN. Modification of Gold Electrode via Electrografting of the
in situ
Generated 3‐Carboxy‐1,2,4‐triazoldiazonium Salt for Label‐free Determination of Carcinoembryonic Antigen. ELECTROANAL 2020. [DOI: 10.1002/elan.201900457] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- T. S. Svalova
- Ural Federal UniversityChemical Technology InstituteAnalytical Chemistry Department 19 Mira str. Ekaterinburg 620002 Russia
| | - A. A. Saigushkina
- Ural Federal UniversityChemical Technology InstituteAnalytical Chemistry Department 19 Mira str. Ekaterinburg 620002 Russia
| | - M. V. Medvedeva
- Ural Federal UniversityChemical Technology InstituteAnalytical Chemistry Department 19 Mira str. Ekaterinburg 620002 Russia
| | - N. N. Malysheva
- Ural Federal UniversityChemical Technology InstituteAnalytical Chemistry Department 19 Mira str. Ekaterinburg 620002 Russia
| | - V. O. Zhdanovskikh
- Ural Federal UniversityChemical Technology InstituteAnalytical Chemistry Department 19 Mira str. Ekaterinburg 620002 Russia
| | - I. V. Kozitsin
- V.A. Trapeznikov Institute of Control Sciences RAS Moscow Russia
- Moscow Institute of Physics and Technology Dolgoprudny Russia
| | - A. N. Kozitsina
- Ural Federal UniversityChemical Technology InstituteAnalytical Chemistry Department 19 Mira str. Ekaterinburg 620002 Russia
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6
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Tamirat AG, Guan X, Liu J, Luo J, Xia Y. Redox mediators as charge agents for changing electrochemical reactions. Chem Soc Rev 2020; 49:7454-7478. [DOI: 10.1039/d0cs00489h] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
This review provides a comprehensive discussion toward understanding the effects of RMs in electrochemical systems, underlying redox mechanisms, and reaction kinetics both experimentally and theoretically.
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Affiliation(s)
- Andebet Gedamu Tamirat
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Institute of New Energy
- Fudan University
- Shanghai 200433
- People's Republic of China
| | - Xuze Guan
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Jingyuan Liu
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Institute of New Energy
- Fudan University
- Shanghai 200433
- People's Republic of China
| | - Jiayan Luo
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Yongyao Xia
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Institute of New Energy
- Fudan University
- Shanghai 200433
- People's Republic of China
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7
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Berisha A. The influence of the grafted aryl groups on the solvation properties of the graphyne and graphdiyne - a MD study. OPEN CHEM 2019. [DOI: 10.1515/chem-2019-0083] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractThe mechanism of the adsorption and grafting of diazonium cations onto the surface of graphyne and graphdiyne was investigated using Density Functional Theory (DFT). The adsorption energy (both in vacuum and water as solvent) of the phenyl diazonium cation was evaluated at three different positions of the graphyne and graphdiyne surface. Moreover, the lowest energy adsorption sites were used to calculate and plot Non-covalent Interactions (NCI). The Bond Dissociation Energy (BDE) results (up to 66 kcal/mol) for the scission of the phenyl group support the remarkable stability of the grafted layer. As both of these materials are non-dispersible in aqueous solution, in this work through the use of Molecular Mechanics (MM) and Molecular Dynamics (MD) we explored also the effect of the grafted substituted aryl groups derived from aryldiazonium salts onto the solvation properties of these materials.
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Affiliation(s)
- Avni Berisha
- Department of Chemistry, FNMS, University of Pristina “ Hasan Prishtina”, 10000 Pristina, Pristina, Republic of Kosovo
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8
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Zou L, Wu X, Huang Y, Ni H, Long ZE. Promoting Shewanella Bidirectional Extracellular Electron Transfer for Bioelectrocatalysis by Electropolymerized Riboflavin Interface on Carbon Electrode. Front Microbiol 2019; 9:3293. [PMID: 30697199 PMCID: PMC6340934 DOI: 10.3389/fmicb.2018.03293] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 12/18/2018] [Indexed: 11/13/2022] Open
Abstract
The extracellular electron transfer (EET) that connects the intracellular metabolism of electroactive microorganisms to external electron donors/acceptors, is the foundation to develop diverse microbial electrochemical technologies. For a particular microbial electrochemical device, the surface chemical property of an employed electrode material plays a crucial role in the EET process owing to the direct and intimate biotic-abiotic interaction. The functional modification of an electrode surface with redox mediators has been proposed as an effectual approach to promote EET, but the underlying mechanism remains unclear. In this work, we investigated the enhancement of electrochemically polymerized riboflavin interface on the bidirectional EET of Shewanella putrefaciens CN32 for boosting bioelectrocatalytic ability. An optimal polyriboflavin functionalized carbon cloth electrode achieved about 4.3-fold output power density (∼707 mW/m2) in microbial fuel cells and 3.7-fold cathodic current density (∼0.78 A/m2) for fumarate reduction in three-electrode cells compared to the control, showing great increases in both outward and inward EET rates. Likewise, the improvement was observed for polyriboflavin-functionalized graphene electrodes. Through comparison between wild-type strain and outer-membrane cytochrome (MtrC/UndA) mutant, the significant improvements were suggested to be attributed to the fast interfacial electron exchange between the polyriboflavin interface with flexible electrochemical activity and good biocompatibility and the outer-membrane cytochromes of the Shewanella strain. This work not only provides an effective approach to boost microbial electrocatalysis for energy conversion, but also offers a new demonstration of broadening the applications of riboflavin-functionalized interface since the widespread contribution of riboflavin in various microbial EET pathways together with the facile electropolymerization approach.
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Affiliation(s)
| | | | | | | | - Zhong-er Long
- College of Life Science, Jiangxi Normal University, Nanchang, China
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9
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Zou L, Qiao Y, Li CM. Boosting Microbial Electrocatalytic Kinetics for High Power Density: Insights into Synthetic Biology and Advanced Nanoscience. ELECTROCHEM ENERGY R 2018. [DOI: 10.1007/s41918-018-0020-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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10
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Martinez CM, Alvarez LH. Application of redox mediators in bioelectrochemical systems. Biotechnol Adv 2018; 36:1412-1423. [DOI: 10.1016/j.biotechadv.2018.05.005] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 05/15/2018] [Accepted: 05/26/2018] [Indexed: 12/12/2022]
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11
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Feng H, Tang C, Wang Q, Liang Y, Shen D, Guo K, He Q, Jayaprada T, Zhou Y, Chen T, Ying X, Wang M. A novel photoactive and three-dimensional stainless steel anode dramatically enhances the current density of bioelectrochemical systems. CHEMOSPHERE 2018; 196:476-481. [PMID: 29324387 DOI: 10.1016/j.chemosphere.2017.12.166] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 12/25/2017] [Accepted: 12/26/2017] [Indexed: 06/07/2023]
Abstract
This study reports a high-performance 3D stainless-steel photoanode (3D SS photoanode) for bioelectrochemical systems (BESs). The 3D SS photoanode consists of 3D carbon-coated SS felt bioactive side and a flat α-Fe2O3-coated SS plate photoactive side. Without light illumination, the electrode reached a current density of 26.2 ± 1.9 A m-2, which was already one of the highest current densities reported thus far. Under illumination, the current density of the electrode was further increased to 46.5 ± 2.9 A m-2. The mechanism of the photo-enhanced current production can be attributed to the reduced charge-transfer resistance between electrode surface and the biofilm with illumination. It was also found that long-term light illumination can enhance the biofilm formation on the 3D SS photoanode. These findings demonstrate that using the synergistic effect of photocatalysis and microbial electrocatalysis is an efficient way to boost the current production of the existing high-performance 3D anodes for BESs.
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Affiliation(s)
- Huajun Feng
- Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310012, China
| | - Chenyi Tang
- Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310012, China
| | - Qing Wang
- Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310012, China; Hangzhou Water Holding Group Co., Ltd, 168 South Jianguo Road, Hangzhou, 310009, China
| | - Yuxiang Liang
- Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310012, China
| | - Dongsheng Shen
- Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310012, China
| | - Kun Guo
- Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310012, China; Center for Microbial Ecology and Technology, Ghent University, Coupure Links 653, B-9000, Ghent, Belgium
| | - Qiaoqiao He
- Zhejiang Sanhua Climate & Appliance Controls Group Co., Ltd, Xialiquan, Xinchang, 312500, China
| | - Thilini Jayaprada
- Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310012, China
| | - Yuyang Zhou
- Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310012, China
| | - Ting Chen
- Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310012, China
| | - Xianbin Ying
- Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310012, China
| | - Meizhen Wang
- Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310012, China.
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12
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Feng H, Liang Y, Guo K, Long Y, Cong Y, Shen D. Addition of nitrite enhances the electrochemical defluorination of 2-fluoroaniline. JOURNAL OF HAZARDOUS MATERIALS 2015; 300:607-614. [PMID: 26266896 DOI: 10.1016/j.jhazmat.2015.06.071] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 06/26/2015] [Accepted: 06/30/2015] [Indexed: 06/04/2023]
Abstract
This study introduces a novel approach that uses the interaction of pollutants with added nitrite to produce diazonium salts, which cause in situ self-assembly of the pollutants on carbon electrodes, to improve their 2-fluoroaniline (2-FA) defluorination and removal performance. The 2-FA degradation performance, electrode properties, electrochemical properties and degradation pathway were investigated. The reactor containing NO2(-) achieved a 2-FA removal efficiency of 90.1% and a defluorination efficiency of 38% within 48 h, 1.4 and 2.3 times higher than the corresponding results achieved without NO2(-), respectively. The residual NO2(-) was less than 0.5mg/L in the reactor containing added NO2(-), which would not cause serious secondary pollution. Scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) results proved that the carbon anode surface was successfully modified with benzene polymer, and electrochemical tests confirmed that the electrochemical activity of the modified anode was enhanced significantly. The C-F bond was weakened by the effect of the positive charge of the benzenediazonium groups, and the high electrochemical activity of the carbon anode enhanced the electrochemical performance of the system to accelerate defluorination. Thus, the present electrical method involving nitrite nitrogen is very promising for the treatment of wastewater containing fluoroaniline compounds.
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Affiliation(s)
- Huajun Feng
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China; Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Hangzhou 310012, China; Laboratory of Microbial Ecology and Technology, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Yuxiang Liang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China; Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Hangzhou 310012, China
| | - Kun Guo
- Laboratory of Microbial Ecology and Technology, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Yuyang Long
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China; Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Hangzhou 310012, China
| | - Yanqing Cong
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China.
| | - Dongsheng Shen
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China; Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Hangzhou 310012, China
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13
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Berisha A, Chehimi M, Pinson J, Podvorica F. Electrode Surface Modification Using Diazonium Salts. ELECTROANALYTICAL CHEMISTRY: A SERIES OF ADVANCES 2015. [DOI: 10.1201/b19196-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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14
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Guo K, Soeriyadi AH, Feng H, Prévoteau A, Patil SA, Gooding JJ, Rabaey K. Heat-treated stainless steel felt as scalable anode material for bioelectrochemical systems. BIORESOURCE TECHNOLOGY 2015; 195:46-50. [PMID: 26112346 DOI: 10.1016/j.biortech.2015.06.060] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 06/12/2015] [Accepted: 06/13/2015] [Indexed: 05/23/2023]
Abstract
This work reports a simple and scalable method to convert stainless steel (SS) felt into an effective anode for bioelectrochemical systems (BESs) by means of heat treatment. X-ray photoelectron spectroscopy and cyclic voltammetry elucidated that the heat treatment generated an iron oxide rich layer on the SS felt surface. The iron oxide layer dramatically enhanced the electroactive biofilm formation on SS felt surface in BESs. Consequently, the sustained current densities achieved on the treated electrodes (1 cm(2)) were around 1.5±0.13 mA/cm(2), which was seven times higher than the untreated electrodes (0.22±0.04 mA/cm(2)). To test the scalability of this material, the heat-treated SS felt was scaled up to 150 cm(2) and similar current density (1.5 mA/cm(2)) was achieved on the larger electrode. The low cost, straightforwardness of the treatment, high conductivity and high bioelectrocatalytic performance make heat-treated SS felt a scalable anodic material for BESs.
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Affiliation(s)
- Kun Guo
- Laboratory of Microbial Ecology and Technology, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | | | - Huajun Feng
- Laboratory of Microbial Ecology and Technology, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium; School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Antonin Prévoteau
- Laboratory of Microbial Ecology and Technology, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Sunil A Patil
- Laboratory of Microbial Ecology and Technology, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - J Justin Gooding
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
| | - Korneel Rabaey
- Laboratory of Microbial Ecology and Technology, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium.
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15
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Guo K, Prévoteau A, Patil SA, Rabaey K. Engineering electrodes for microbial electrocatalysis. Curr Opin Biotechnol 2015; 33:149-56. [DOI: 10.1016/j.copbio.2015.02.014] [Citation(s) in RCA: 164] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Revised: 02/25/2015] [Accepted: 02/26/2015] [Indexed: 01/21/2023]
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16
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X-Ray Photoelectron Spectroscopic Characterization of Chemically Modified Electrodes Used as Chemical Sensors and Biosensors: A Review. CHEMOSENSORS 2015. [DOI: 10.3390/chemosensors3020070] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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17
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Gildemyn S, Luther AK, Andersen SJ, Desloover J, Rabaey K. Electrochemically and bioelectrochemically induced ammonium recovery. J Vis Exp 2015:52405. [PMID: 25651406 DOI: 10.3791/52405] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Streams such as urine and manure can contain high levels of ammonium, which could be recovered for reuse in agriculture or chemistry. The extraction of ammonium from an ammonium-rich stream is demonstrated using an electrochemical and a bioelectrochemical system. Both systems are controlled by a potentiostat to either fix the current (for the electrochemical cell) or fix the potential of the working electrode (for the bioelectrochemical cell). In the bioelectrochemical cell, electroactive bacteria catalyze the anodic reaction, whereas in the electrochemical cell the potentiostat applies a higher voltage to produce a current. The current and consequent restoration of the charge balance across the cell allow the transport of cations, such as ammonium, across a cation exchange membrane from the anolyte to the catholyte. The high pH of the catholyte leads to formation of ammonia, which can be stripped from the medium and captured in an acid solution, thus enabling the recovery of a valuable nutrient. The flux of ammonium across the membrane is characterized at different anolyte ammonium concentrations and currents for both the abiotic and biotic reactor systems. Both systems are compared based on current and removal efficiencies for ammonium, as well as the energy input required to drive ammonium transfer across the cation exchange membrane. Finally, a comparative analysis considering key aspects such as reliability, electrode cost, and rate is made. This video article and protocol provide the necessary information to conduct electrochemical and bioelectrochemical ammonia recovery experiments. The reactor setup for the two cases is explained, as well as the reactor operation. We elaborate on data analysis for both reactor types and on the advantages and disadvantages of bioelectrochemical and electrochemical systems.
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Affiliation(s)
- Sylvia Gildemyn
- Laboratory of Microbial Ecology and Technology (LabMET), Ghent University
| | | | - Stephen J Andersen
- Laboratory of Microbial Ecology and Technology (LabMET), Ghent University
| | - Joachim Desloover
- Laboratory of Microbial Ecology and Technology (LabMET), Ghent University
| | - Korneel Rabaey
- Laboratory of Microbial Ecology and Technology (LabMET), Ghent University;
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18
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Sarjit A, Mei Tan S, A. Dykes G. Surface modification of materials to encourage beneficial biofilm formation. AIMS BIOENGINEERING 2015. [DOI: 10.3934/bioeng.2015.4.404] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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19
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Torréns M, Ortiz M, Turner APF, Beni V, O'Sullivan CK. Controlled Zn-Mediated Grafting of Thin Layers of Bipodal Diazonium Salt on Gold and Carbon Substrates. Chemistry 2014; 21:671-81. [DOI: 10.1002/chem.201405121] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Indexed: 11/09/2022]
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20
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Tang X, Li H, Du Z, Ng HY. Spontaneous modification of graphite anode by anthraquinone-2-sulfonic acid for microbial fuel cells. BIORESOURCE TECHNOLOGY 2014; 164:184-8. [PMID: 24859209 DOI: 10.1016/j.biortech.2014.05.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Revised: 05/01/2014] [Accepted: 05/03/2014] [Indexed: 05/22/2023]
Abstract
In this study, anthraquinone-2-sulfonic acid (AQS), an electron transfer mediator, was immobilized onto graphite felt surface via spontaneous reduction of the in situ generated AQS diazonium cations. Cyclic voltammetry (CV) and energy dispersive spectrometry (EDS) characterizations of AQS modified graphite demonstrated that AQS was covalently grafted onto the graphite surface. The modified graphite, with a surface AQS concentration of 5.37 ± 1.15 × 10(-9)mol/cm(2), exhibited good electrochemical activity and high stability. The midpoint potential of the modified graphite was about -0.248 V (vs. normal hydrogen electrode, NHE), indicating that electrons could be easily transferred from NADH in bacteria to the electrode. AQS modified anode in MFCs increased the maximum power density from 967 ± 33 mW/m(2) to 1872 ± 42 mW/m(2). These results demonstrated that covalently modified AQS functioned as an electron transfer mediator to facilitate extracellular electron transfer from bacteria to electrode and significantly enhanced the power production in MFCs.
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Affiliation(s)
- Xinhua Tang
- National University of Singapore, Department of Civil and Environmental Engineering, Centre for Water Research, Singapore 117576, Singapore; National University of Singapore, NUS Graduate School for Integrative Sciences and Engineering, Singapore 117456, Singapore
| | - Haoran Li
- Chinese Academy of Sciences, Institute of Process Engineering, National Key Laboratory of Biochemical Engineering, Beijing 100190, China
| | - Zhuwei Du
- Chinese Academy of Sciences, Institute of Process Engineering, National Key Laboratory of Biochemical Engineering, Beijing 100190, China
| | - How Yong Ng
- National University of Singapore, Department of Civil and Environmental Engineering, Centre for Water Research, Singapore 117576, Singapore.
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Guo K, Donose BC, Soeriyadi AH, Prévoteau A, Patil SA, Freguia S, Gooding JJ, Rabaey K. Flame oxidation of stainless steel felt enhances anodic biofilm formation and current output in bioelectrochemical systems. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2014; 48:7151-6. [PMID: 24911921 DOI: 10.1021/es500720g] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Stainless steel (SS) can be an attractive material to create large electrodes for microbial bioelectrochemical systems (BESs), due to its low cost and high conductivity. However, poor biocompatibility limits its successful application today. Here we report a simple and effective method to make SS electrodes biocompatible by means of flame oxidation. Physicochemical characterization of electrode surface indicated that iron oxide nanoparticles (IONPs) were generated in situ on an SS felt surface by flame oxidation. IONPs-coating dramatically enhanced the biocompatibility of SS felt and consequently resulted in a robust electroactive biofilm formation at its surface in BESs. The maximum current densities reached at IONPs-coated SS felt electrodes were 16.5 times and 4.8 times higher than the untreated SS felts and carbon felts, respectively. Furthermore, the maximum current density achieved with the IONPs-coated SS felt (1.92 mA/cm(2), 27.42 mA/cm(3)) is one of the highest current densities reported thus far. These results demonstrate for the first time that flame oxidized SS felts could be a good alternative to carbon-based electrodes for achieving high current densities in BESs. Most importantly, high conductivity, excellent mechanical strength, strong chemical stability, large specific surface area, and comparatively low cost of flame oxidized SS felts offer exciting opportunities for scaling-up of the anodes for BESs.
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Affiliation(s)
- Kun Guo
- Laboratory of Microbial Ecology and Technology, Ghent University , Coupure Links 653, B-9000 Ghent, Belgium
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Guo K, Soeriyadi AH, Patil SA, Prévoteau A, Freguia S, Gooding JJ, Rabaey K. Surfactant treatment of carbon felt enhances anodic microbial electrocatalysis in bioelectrochemical systems. Electrochem commun 2014. [DOI: 10.1016/j.elecom.2013.12.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Flexer V, Marque M, Donose BC, Virdis B, Keller J. Plasma treatment of electrodes significantly enhances the development of anodic electrochemically active biofilms. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.06.145] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Andersen SJ, Pikaar I, Freguia S, Lovell BC, Rabaey K, Rozendal RA. Dynamically adaptive control system for bioanodes in serially stacked bioelectrochemical systems. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:5488-5494. [PMID: 23593927 DOI: 10.1021/es400239k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Microbial bioelectrochemical systems (BESs) use microorganisms as catalysts for electrode reactions. They have emerging applications in bioenergy, bioproduction, and bioremediation. BESs can be scaled up as a linked series of units or cells; however, this may lead to so-called cell reversal. Here, we demonstrate a cell balance system (CBS) that controls individual BES cells connected electrically in series by dynamically adapting the applied potential in the kilohertz frequency range relative to the performance of the bioanode. The CBS maintains the cell voltage of individual BES cells at or below a maximum set point by bypassing a portion of applied current with a high-frequency metal oxide semiconductor field-effect transistor switch control system. We demonstrate (i) multiple serially connected BES cells started simultaneously and rapidly from a single power source, as the CBS imparts no current limitation, (ii) continuous, stable, and independent performance of each stacked BES cell, and (iii) stable BES cell and stack performance under excessive applied currents. This control system has applications for not only serially stacked BESs in scaled-up stacks but also rapidly starting individual- and/or lab-scale BESs.
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Affiliation(s)
- Stephen J Andersen
- Bilexys Pty Ltd., c/o UniQuest, Level 7, General Purpose South Building, Staff House Road, Queensland 4072, Australia
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