1
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Campbell S, La C, Zhou Q, Le J, Galvez-Reyes J, Banach C, Houk KN, Chen JR, Paulson SE. Characterizing Hydroxyl Radical Formation from the Light-Driven Fe(II)-Peracetic Acid Reaction, a Key Process for Aerosol-Cloud Chemistry. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:7505-7515. [PMID: 38619820 PMCID: PMC11064221 DOI: 10.1021/acs.est.3c10684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 03/26/2024] [Accepted: 03/27/2024] [Indexed: 04/16/2024]
Abstract
The reaction of peracetic acid (PAA) and Fe(II) has recently gained attention due to its utility in wastewater treatment and its role in cloud chemistry. Aerosol-cloud interactions, partly mediated by aqueous hydroxyl radical (OH) chemistry, represent one of the largest uncertainties in the climate system. Ambiguities remain regarding the sources of OH in the cloud droplets. Our research group recently proposed that the dark and light-driven reaction of Fe(II) with peracids may be a key contributor to OH formation, producing a large burst of OH when aerosol particles take up water as they grow to become cloud droplets, in which reactants are consumed within 2 min. In this work, we quantify the OH production from the reaction of Fe(II) and PAA across a range of physical and chemical conditions. We show a strong dependence of OH formation on ultraviolet (UV) wavelength, with maximum OH formation at λ = 304 ± 5 nm, and demonstrate that the OH burst phenomenon is unique to Fe(II) and peracids. Using kinetics modeling and density functional theory calculations, we suggest the reaction proceeds through the formation of an [Fe(II)-(PAA)2(H2O)2] complex, followed by the formation of a Fe(IV) complex, which can also be photoactivated to produce additional OH. Determining the characteristics of OH production from this reaction advances our knowledge of the sources of OH in cloudwater and provides a framework to optimize this reaction for OH output for wastewater treatment purposes.
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Affiliation(s)
- Steven
J. Campbell
- Department
of Atmospheric and Oceanic Sciences, University
of California at Los Angeles, 520 Portola Plaza, Los Angeles, California 90095, United States
| | - Chris La
- Department
of Atmospheric and Oceanic Sciences, University
of California at Los Angeles, 520 Portola Plaza, Los Angeles, California 90095, United States
| | - Qingyang Zhou
- Department
of Chemistry and Biochemistry, University
of California, Los Angeles, California 90095, United States
| | - Jason Le
- Department
of Atmospheric and Oceanic Sciences, University
of California at Los Angeles, 520 Portola Plaza, Los Angeles, California 90095, United States
| | - Jennyfer Galvez-Reyes
- Department
of Atmospheric and Oceanic Sciences, University
of California at Los Angeles, 520 Portola Plaza, Los Angeles, California 90095, United States
| | - Catherine Banach
- Department
of Atmospheric and Oceanic Sciences, University
of California at Los Angeles, 520 Portola Plaza, Los Angeles, California 90095, United States
| | - K. N. Houk
- Department
of Chemistry and Biochemistry, University
of California, Los Angeles, California 90095, United States
| | - Jie Rou Chen
- Department
of Atmospheric and Oceanic Sciences, University
of California at Los Angeles, 520 Portola Plaza, Los Angeles, California 90095, United States
| | - Suzanne E. Paulson
- Department
of Atmospheric and Oceanic Sciences, University
of California at Los Angeles, 520 Portola Plaza, Los Angeles, California 90095, United States
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2
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Sayoga GV, Bueschler VS, Beisch H, Utesch T, Holtmann D, Fiedler B, Ohde D, Liese A. Electrochemical H 2O 2 - stat mode as reaction concept to improve the process performance of an unspecific peroxygenase. N Biotechnol 2023; 78:95-104. [PMID: 37852437 DOI: 10.1016/j.nbt.2023.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 10/10/2023] [Accepted: 10/15/2023] [Indexed: 10/20/2023]
Abstract
The electroenzymatic hydroxylation of 4-ethylbenzoic acid catalyzed by the recombinant unspecific peroxygenase from the fungus Agrocybe aegerita (rAaeUPO) was performed in a gas diffusion electrode (GDE)-based system. Enzyme stability and productivity are significantly affected by the way the co-substrate hydrogen peroxide (H2O2) is supplied. In this study, two in-situ electrogeneration modes of H2O2 were established and compared. Experiments under galvanostatic conditions (constant productivity of H2O2) were conducted at current densities spanning from 0.8 mA cm-2 to 6.4 mA cm-2. For comparison, experiments under H2O2-stat mode (constant H2O2 concentration) were performed. Here, four H2O2 concentrations between 0.06 mM and 0.28 mM were tested. A maximum H2O2 productivity of 5.5 µM min-1 cm-2 and productivity of 10.5 g L-1 d-1 were achieved under the galvanostatic condition at 6.4 mA cm-2. Meanwhile, the highest total turnover number (TTN) of 710,000 mol mol-1 and turnover frequency (TOF) of 87.5 s-1 were obtained under the H2O2-stat mode at concentration limits of 0.15 mM and 0.28 mM, respectively. The most favorable outcome in terms of maximum achievable TTN, TOF and productivity was found under the H2O2-stat mode at concentration limit of 0.2 mM. Here, a TTN of 655,000 mol mol-1, a TOF of 80.3 s-1 and a productivity of 6.1 g L-1 d-1 were achieved. The electrochemical H2O2-stat mode not only offers a promising alternative reaction concept to the well-established galvanostatic mode but also enhances the process performance of unspecific peroxygenases.
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Affiliation(s)
- Giovanni V Sayoga
- Institute of Technical Biocatalysis, Hamburg University of Technology, Denickestraße 15, 21073 Hamburg, Germany.
| | - Victoria S Bueschler
- Institute of Technical Biocatalysis, Hamburg University of Technology, Denickestraße 15, 21073 Hamburg, Germany
| | - Hubert Beisch
- Institute of Polymers and Composites, Hamburg University of Technology, Denickestraße 15, 21073 Hamburg, Germany
| | - Tyll Utesch
- Institute of Bioprocess and Biosystems Engineering, Hamburg University of Technology, Denickestraße 15, 21073 Hamburg, Germany
| | - Dirk Holtmann
- Institute of Process Engineering in Life Sciences, Karlsruhe Institute of Technology, Fritz-Haber-Weg 4, 76131 Karlsruhe, Germany
| | - Bodo Fiedler
- Institute of Polymers and Composites, Hamburg University of Technology, Denickestraße 15, 21073 Hamburg, Germany
| | - Daniel Ohde
- Institute of Technical Biocatalysis, Hamburg University of Technology, Denickestraße 15, 21073 Hamburg, Germany
| | - Andreas Liese
- Institute of Technical Biocatalysis, Hamburg University of Technology, Denickestraße 15, 21073 Hamburg, Germany.
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3
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Chen Z, Wang H, Ma X, Chen X, Gui S, Li J. Flow-Through Electrochemical Membrane Reactor with a Self-Supported Carbon Membrane Electrode for Highly Efficient Synthesis of Hydrogen Peroxide. ACS APPLIED MATERIALS & INTERFACES 2023; 15:42460-42469. [PMID: 37647533 DOI: 10.1021/acsami.3c06307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
In situ electroreduction of O2 to H2O2 by using electrons as reagents is known as a green process, which is highly desirable for environmental remediation and chemical industries. However, the development of a cost-effective electrode with superior H2O2 synthesis rate and stability is challenging. A self-supported carbon membrane (CM) was prepared in this study from activated carbon and phenolic resin by carbonization under a H2 atmosphere. It was employed as the cathode to build a flow-through electrochemical membrane reactor (FT-ECMR) for electrosynthesis of H2O2. The results showed that the CM had a small pore size (34 nm), a high porosity (42.3%), and a high surface area (450.7 m2 g-1). In contrast to most of the state-of-the-art self-supported carbon electrode reported in the previous works, the FT-ECMR exhibited a high concentration of continuous and stable H2O2 electrosynthesis (1042 mg L-1) as well as a H2O2 synthesis rate of 5.21 mg h-1 cm-2. It had also demonstrated a high oxygen conversion (0.37%) and current efficiency (88%). The outstanding performance of the FT-ECMR for H2O2 synthesis was attributed to the enhanced mass transfer of the reactor, the existence of a relatively high surface area of CM, and the abundant disordered carbon structures (sp3-C, defects, and edges). In conclusion, our work highlighted using the FT-ECMR with the CM to synthesize H2O2 efficiently and cost-effectively.
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Affiliation(s)
- Zishang Chen
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Membrane Science and Technology, Tiangong University, Tianjin 300387, P. R. China
- School of Materials Science and Engineering, Tiangong University, Tianjin 300387, P. R. China
| | - Hong Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Membrane Science and Technology, Tiangong University, Tianjin 300387, P. R. China
- School of Materials Science and Engineering, Tiangong University, Tianjin 300387, P. R. China
| | - Xiaohua Ma
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Membrane Science and Technology, Tiangong University, Tianjin 300387, P. R. China
- School of Materials Science and Engineering, Tiangong University, Tianjin 300387, P. R. China
| | - Xiaoping Chen
- Institute of Energy Research, Jiangxi Academy of Sciences, Nanchang 330096, P. R. China
| | - Shuanglin Gui
- Institute of Energy Research, Jiangxi Academy of Sciences, Nanchang 330096, P. R. China
| | - Jianxin Li
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Membrane Science and Technology, Tiangong University, Tianjin 300387, P. R. China
- School of Materials Science and Engineering, Tiangong University, Tianjin 300387, P. R. China
- College of Science, Engineering and Technology, Institute for Nanotechnology and Water Sustainability, University of South Africa Science Campus, Florida 1710, Johannesburg, South Africa
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4
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Campbell SJ, Utinger B, Barth A, Paulson SE, Kalberer M. Iron and Copper Alter the Oxidative Potential of Secondary Organic Aerosol: Insights from Online Measurements and Model Development. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:13546-13558. [PMID: 37624361 PMCID: PMC10501117 DOI: 10.1021/acs.est.3c01975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 07/17/2023] [Accepted: 08/14/2023] [Indexed: 08/26/2023]
Abstract
The oxidative potential (OP) of particulate matter has been widely suggested as a key metric for describing atmospheric particle toxicity. Secondary organic aerosol (SOA) and redox-active transition metals, such as iron and copper, are key drivers of particle OP. However, their relative contributions to OP, as well as the influence of metal-organic interactions and particulate chemistry on OP, remains uncertain. In this work, we simultaneously deploy two novel online instruments for the first time, providing robust quantification of particle OP. We utilize online AA (OPAA) and 2,7-dichlorofluoroscein (ROSDCFH) methods to investigate the influence of Fe(II) and Cu(II) on the OP of secondary organic aerosol (SOA). In addition, we quantify the OH production (OPOH) from these particle mixtures. We observe a range of synergistic and antagonistic interactions when Fe(II) and Cu(II) are mixed with representative biogenic (β-pinene) and anthropogenic (naphthalene) SOA. A newly developed kinetic model revealed key reactions among SOA components, transition metals, and ascorbate, influencing OPAA. Model predictions agree well with OPAA measurements, highlighting metal-ascorbate and -naphthoquinone-ascorbate reactions as important drivers of OPAA. The simultaneous application of multiple OP assays and a kinetic model provides new insights into the influence of metal and SOA interactions on particle OP.
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Affiliation(s)
- Steven J. Campbell
- Department
of Environmental Sciences, University of
Basel, Klingelbergstrasse 27, 4057 Basel, Switzerland
- Department
of Atmospheric and Oceanic Sciences, University
of California at Los Angeles, 520 Portola Plaza, Los Angeles, California 90095, United States
| | - Battist Utinger
- Department
of Environmental Sciences, University of
Basel, Klingelbergstrasse 27, 4057 Basel, Switzerland
| | - Alexandre Barth
- Department
of Environmental Sciences, University of
Basel, Klingelbergstrasse 27, 4057 Basel, Switzerland
| | - Suzanne E. Paulson
- Department
of Atmospheric and Oceanic Sciences, University
of California at Los Angeles, 520 Portola Plaza, Los Angeles, California 90095, United States
| | - Markus Kalberer
- Department
of Environmental Sciences, University of
Basel, Klingelbergstrasse 27, 4057 Basel, Switzerland
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5
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Zhang Y, Mascaretti L, Melchionna M, Henrotte O, Kment Š, Fornasiero P, Naldoni A. Thermoplasmonic In Situ Fabrication of Nanohybrid Electrocatalysts over Gas Diffusion Electrodes for Enhanced H 2O 2 Electrosynthesis. ACS Catal 2023; 13:10205-10216. [PMID: 37560189 PMCID: PMC10407842 DOI: 10.1021/acscatal.3c01837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/26/2023] [Indexed: 08/11/2023]
Abstract
Large-scale development of electrochemical cells is currently hindered by the lack of Earth-abundant electrocatalysts with high catalytic activity, product selectivity, and interfacial mass transfer. Herein, we developed an electrocatalyst fabrication approach which responds to these requirements by irradiating plasmonic titanium nitride (TiN) nanocubes self-assembled on a carbon gas diffusion layer in the presence of polymeric binders. The localized heating produced upon illumination creates unique conditions for the formation of TiN/F-doped carbon hybrids that show up to nearly 20 times the activity of the pristine electrodes. In alkaline conditions, they exhibit enhanced stability, a maximum H2O2 selectivity of 90%, and achieve a H2O2 productivity of 207 mmol gTiN-1 h-1 at 0.2 V vs RHE. A detailed electrochemical investigation with different electrode arrangements demonstrated the key role of nanocomposite formation to achieve high currents. In particular, an increased TiOxNy surface content promoted a higher H2O2 selectivity, and fluorinated nanocarbons imparted good stability to the electrodes due to their superhydrophobic properties.
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Affiliation(s)
- Yu Zhang
- Czech
Advanced Technology and Research Institute, Regional Centre of Advanced
Technologies and Materials, Palacký
University Olomouc, Šlechtitelů
27, 78371 Olomouc, Czech Republic
| | - Luca Mascaretti
- Czech
Advanced Technology and Research Institute, Regional Centre of Advanced
Technologies and Materials, Palacký
University Olomouc, Šlechtitelů
27, 78371 Olomouc, Czech Republic
| | - Michele Melchionna
- Department
of Chemical and Pharmaceutical Sciences, ICCOM-CNR Trieste Research
Unit, INSTM-Trieste, Center for Energy, Environment and Transport
Giacomo Ciamician, University of Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy
| | - Olivier Henrotte
- Czech
Advanced Technology and Research Institute, Regional Centre of Advanced
Technologies and Materials, Palacký
University Olomouc, Šlechtitelů
27, 78371 Olomouc, Czech Republic
| | - Štepan Kment
- Czech
Advanced Technology and Research Institute, Regional Centre of Advanced
Technologies and Materials, Palacký
University Olomouc, Šlechtitelů
27, 78371 Olomouc, Czech Republic
- Nanotechnology
Centre, Centre of Energy and Environmental Technologies, VŠB—Technical University of Ostrava, 17. listopadu 2172/15, Poruba, 708 00 Ostrava, Czech Republic
| | - Paolo Fornasiero
- Department
of Chemical and Pharmaceutical Sciences, ICCOM-CNR Trieste Research
Unit, INSTM-Trieste, Center for Energy, Environment and Transport
Giacomo Ciamician, University of Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy
| | - Alberto Naldoni
- Department
of Chemistry and NIS Centre, University
of Turin, 10125 Turin, Italy
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6
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Mohseni M, Felder D, Percin K, Thönes M, Gassenmeier M, Kupec R, Weidlich C, Linkhorst J, Keller RG, Wessling M. Toward decentralized wastewater treatment: A flow-through module using microtubular gas diffusion electrodes for micropollutants removal. JOURNAL OF HAZARDOUS MATERIALS 2023; 458:131987. [PMID: 37421862 DOI: 10.1016/j.jhazmat.2023.131987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/16/2023] [Accepted: 07/01/2023] [Indexed: 07/10/2023]
Abstract
Electro-Fenton (EF) represents an eco-friendly and cost-effective advanced oxidation process that can remove highly persistent and hazardous pharmaceuticals, e.g., contrast media agents, from water bodies. However, up to date, EF modules incorporate a planar carbonaceous gas diffusion electrode (GDE) cathode containing fluorinated compounds as polymeric binders. Here, we introduce a novel flow-through module that deploys freestanding carbon microtubes (CMT) as microtubular GDEs, omitting any risks of secondary pollution by highly-persistent fluorinated compounds (e.g., Nafion). The flow-through module was characterized for electrochemical hydrogen peroxide (H2O2) generation and micropollutant removal via EF. H2O2 electro-generation experiments illustrated high production rates (1.1 ± 0.1-2.7 ± 0.1 mg cm-2 h-1) at an applied cathodic potential of - 0.6 V vs. SHE, depending on the porosity of CMTs. Diatrizoate (DTZ), as the model pollutant, with a high initial concentration of 100 mg L-1 was successfully oxidized (95-100 %), reaching mineralization (TOC-total organic carbon removal) efficiencies up to 69 %. Additionally, Electro-adsorption experiments demonstrated the capability of positively charged CMTs to remove negatively charged DTZ with a capacity of 11 mg g-1 from a 10 mg L-1 DTZ solution. These results reveal the potential of the as-designed module to serve as an oxidation unit coupled with other separation techniques, e.g., electro-adsorption or membrane processes.
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Affiliation(s)
- Mojtaba Mohseni
- RWTH Aachen University, Aachener Verfahrenstechnik - Chemical Process Engineering, Forckenbeckstr. 51, 52074 Aachen, Germany
| | - Daniel Felder
- RWTH Aachen University, Aachener Verfahrenstechnik - Chemical Process Engineering, Forckenbeckstr. 51, 52074 Aachen, Germany; DWI - Leibniz Institute for Interactive Materials, Forckenbeckstr. 50, 52074 Aachen, Germany
| | - Korcan Percin
- RWTH Aachen University, Aachener Verfahrenstechnik - Chemical Process Engineering, Forckenbeckstr. 51, 52074 Aachen, Germany
| | - Maximilian Thönes
- RWTH Aachen University, Aachener Verfahrenstechnik - Chemical Process Engineering, Forckenbeckstr. 51, 52074 Aachen, Germany
| | - Matthias Gassenmeier
- RWTH Aachen University, Aachener Verfahrenstechnik - Chemical Process Engineering, Forckenbeckstr. 51, 52074 Aachen, Germany
| | - Robin Kupec
- DECHEMA-Forschungsinstitut, Theodor-Heuss-Allee 25, 60486 Frankfurt am Main, Germany
| | - Claudia Weidlich
- DECHEMA-Forschungsinstitut, Theodor-Heuss-Allee 25, 60486 Frankfurt am Main, Germany
| | - John Linkhorst
- RWTH Aachen University, Aachener Verfahrenstechnik - Chemical Process Engineering, Forckenbeckstr. 51, 52074 Aachen, Germany
| | - Robert G Keller
- RWTH Aachen University, Aachener Verfahrenstechnik - Chemical Process Engineering, Forckenbeckstr. 51, 52074 Aachen, Germany
| | - Matthias Wessling
- RWTH Aachen University, Aachener Verfahrenstechnik - Chemical Process Engineering, Forckenbeckstr. 51, 52074 Aachen, Germany; DWI - Leibniz Institute for Interactive Materials, Forckenbeckstr. 50, 52074 Aachen, Germany.
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7
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Li M, Zhu Z, Yuan S, Ji L, Zhao T, Gao Y, Wang H. Nitrogen and oxygen co-doped graphite felt gas diffusion electrodes for efficient hydrogen peroxide electrosynthesis. MOLECULAR CATALYSIS 2023. [DOI: 10.1016/j.mcat.2023.113076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
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8
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Li C, Hu C, Song Y, Sun YM, Yang W, Ma M. Active Oxygen Functional Group Modification and the Combined Interface Engineering Strategy for Efficient Hydrogen Peroxide Electrosynthesis. ACS APPLIED MATERIALS & INTERFACES 2022; 14:46695-46707. [PMID: 36210526 DOI: 10.1021/acsami.2c14780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Cathodic catalytic activity and interfacial mass transfer are key factors for efficiently generating hydrogen peroxide (H2O2) via a two-electron oxygen reduction reaction (ORR). In this work, a carbonized carboxymethyl cellulose (CMC)-reduced graphene oxide (rGO) synthetic fabric cathode was designed and constructed to improve two-electron ORR activity and interfacial mass transfer. Carbonized CMC exhibits abundant active carboxyl groups and excellent two-electron ORR activity with an H2O2 selectivity of approximately 87%, higher than that of rGO and other commonly used carbonaceous catalysts. Carbonizing CMC and the agglomerates formed from it restrain the restacking of rGO sheets and thus create abundant meso/macroporous channels for the interfacial mass transfer of oxygen and H2O2. Thus, the as-constructed carbonized CMC-rGO synthetic fabric cathode exhibits exceptional H2O2 electrosynthesis performance with 11.94 mg·h-1·cm-2 yield and 82.32% current efficiency. The sufficient active sites and mass-transfer channels of the cathode also ensure its practical application performance at high current densities, which is further illustrated by the rapid organic pollutant degradation via the H2O2-based electro-Fenton process.
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Affiliation(s)
- Chang Li
- Nanjing IPE Institute of Green Manufacturing Industry, Nanjing, Jiangsu211135, P. R. China
| | - Chaoquan Hu
- Nanjing IPE Institute of Green Manufacturing Industry, Nanjing, Jiangsu211135, P. R. China
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing100190, P. R. China
| | - Yang Song
- Nanjing IPE Institute of Green Manufacturing Industry, Nanjing, Jiangsu211135, P. R. China
| | - Yi-Meng Sun
- Nanjing IPE Institute of Green Manufacturing Industry, Nanjing, Jiangsu211135, P. R. China
- Department of Chemical and Materials Engineering, National Central University, Taoyuan32001, Taiwan
| | - Weisheng Yang
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu210037, P. R. China
| | - Meng Ma
- Nanjing IPE Institute of Green Manufacturing Industry, Nanjing, Jiangsu211135, P. R. China
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9
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Wang S, Ye D, Liu H, Zhu X, Lan Q, Yang Y, Chen R, Liao Q. Engineering a concordant microenvironment with air-liquid-solid interface to promote electrochemical H2O2 generation and wastewater purification. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121527] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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10
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Zeng S, Wang S, Zhuang H, Lu B, Li C, Wang Y, Wang G. Fluorine-doped carbon: A metal-free electrocatalyst for oxygen reduction to peroxide. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140460] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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11
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Khoram MM, Nematollahi D, Khazalpour S, Zarei M, Zolfigol MA. Electrocatalytic generation of hydrogen peroxide using carbon electrode modified with 5H-dibenzo[b,i]xanthene-5,7,12,14(13H)-tetraone derivative. A green and efficient method. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.139885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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12
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Chu Y, Su H, Liu C, Zheng X. Fabrication of sandwich-like super-hydrophobic cathode for the electro-Fenton degradation of cefepime: H 2O 2 electro-generation, degradation performance, pathway and biodegradability improvement. CHEMOSPHERE 2022; 286:131669. [PMID: 34340112 DOI: 10.1016/j.chemosphere.2021.131669] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 07/15/2021] [Accepted: 07/23/2021] [Indexed: 06/13/2023]
Abstract
Several composite cathodes were prepared using graphite, carbon nanotube (CNT) and PTFE, and their elemental composition, surface morphology, physical and electrochemical properties were studied by various characterization techniques. It was found that the hydrophobic property of the prepared cathodes could be greatly enhanced by changing their surface morphologies using polyurethane sponge in cathode-shaping, which successfully allowed the preparation of super-hydrophobic carbon cathode, resulting in the enhanced reduction of O2 to H2O2. Based on the above finding, a sandwich-like super-hydrophobic carbon cathode was fabricated and used in the electro-Fenton process for the degradation of cefepime. The recommended cathode exhibited an ideal performance for H2O2 electro-generation and a favorable stability. The cathode submerged in air-aeration solution (pH 3.0) has produced 376 mg L-1 H2O2 with an observed current efficiency (CE) of 40 % via the electrolysis of 60 min at the optimum potential. The developed electro-Fenton process presented the degradation efficiency of nearly 100 % within 10 min for 60 mg L-1 cefepime, in which the degradation of cefepime mainly depended on the generation of hydroxyl radicals (∙OH). The organic intermediates formed during cefepime degradation were identified and the degradation pathway was proposed. More over, the electro-Fenton degradation of cefepime evidently reduced the solution toxicity and improved the biodegradability, suggesting the electro-Fenton oxidation may be adopted as a pretreatment alternative prior to the biological treatment of cefepime-containing wastewater.
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Affiliation(s)
- Yanyang Chu
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Shandong, Qingdao, 266042, China.
| | - Hongzhao Su
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Shandong, Qingdao, 266042, China
| | - Chang Liu
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Shandong, Qingdao, 266042, China
| | - Xianglei Zheng
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Shandong, Qingdao, 266042, China
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13
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Duan Y, Sedlak DL. An electrochemical advanced oxidation process for the treatment of urban stormwater. WATER RESEARCH X 2021; 13:100127. [PMID: 34927040 PMCID: PMC8649961 DOI: 10.1016/j.wroa.2021.100127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 11/22/2021] [Accepted: 11/24/2021] [Indexed: 06/14/2023]
Abstract
Recharge of urban stormwater has often been limited by the high cost of land and concerns about contamination of groundwater. To provide a possible solution, we developed an electrochemical advanced oxidation system (UV/H2O2) that is compatible with high-capacity stormwater recharge systems (e.g., drywells). The system employed an air-diffusion cathode to generate a H2O2 stock solution (i.e., typically around 600 mM) prior to the storm event. The H2O2 stock solution was then metered into stormwater and converted into hydroxyl radical (•OH) by an ultraviolet lamp. The energy consumption for H2O2 generation was optimized by adjusting the applied current density and adding an inert salt (e.g., Na2SO4) to stormwater. H2O2 in the stock solution was unstable. By mixing the basic H2O2 containing catholyte and the acidic anolyte, the stability increased, enabling generation of the H2O2 stock solution up to three days prior the storm event with loss of less than 20% of the H2O2. Lab-scale experiments and a kinetic model were used to assess the feasibility of the full-scale advanced oxidation system. System performance decreased at elevated concentrations of dissolved organic carbon in stormwater, due to enhanced light reflection and backscattering at the water-air interface in the UV reactor, competition for UV light absorption with H2O2 and the tendency of organic matter to act as a •OH scavenger. The proposed system can be incorporated into drywells to remove greater than 90% of trace organic contaminants under typical operating conditions. The electrical energy per order of the system is estimated to range from 0.5 to 2 kWh/m3, depending on the dissolved organic carbon concentration.
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Shi K, Wang Y, Xu A, Zhou X, Zhu H, Wei K, Liu X, Shen J, Han W. Efficient degradation of ibuprofen by electro-Fenton with microtubular gas- diffusion electrodes synthesized by wet-spinning method. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115615] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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15
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Acosta-Santoyo G, León-Fernández LF, Bustos E, Cañizares P, Rodrigo M, Llanos J. On the production of ozone, hydrogen peroxide and peroxone in pressurized undivided electrochemical cells. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138878] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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16
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Tan X, Jin C, Sun W, Zhao Y, Wei H, Sun C. Synergetic electrocatalytic degradation of isophorone by active oxygen species generated in the gas diffusion electrode and PbO 2 anode. CHEMOSPHERE 2021; 275:130060. [PMID: 33652286 DOI: 10.1016/j.chemosphere.2021.130060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 02/18/2021] [Accepted: 02/20/2021] [Indexed: 06/12/2023]
Abstract
Significant efforts have been made to achieve efficient H2O2 generation via oxygen reduction reaction (ORR). Here, the acetylene black (AB)-based gas diffusion electrodes (GDEs) modified by PTFE were fabricated and applied in a closed autoclave for H2O2 generation for the first time. The surface morphology, BET, XPS, cyclic voltammetry curves and linear scanning voltammetry curves of GDEs were all characterized. Additionally, the H2O2 generation experiments of GDEs and the relationship between H2O2 yield and BET surface area (SBET), double layer capacitance (Cdl) were all investigated. It could be found that the SBET and Cdl of GDEs kept a good linear relationship with H2O2 content, and 2#GDE (AB:PTFE = 1:3) possessed the optimal H2O2 generation capacity. Also, the effect of oxygen pressure and current density on H2O2 production was evaluated detailedly, indicating higher oxygen pressure was beneficial to the H2O2 generation and the preferable current density was 20 mA cm-2 due to the side reactions. And all the H2O2 electro-generation experiments exhibited a higher oxygen utilization efficiency (0.77%-2.93%). Finally, the efficient and synergetic electro-catalytic degradation of isophorone was achieved by self-made PbO2 anode and GDE.
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Affiliation(s)
- Xiangdong Tan
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Chengyu Jin
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Wenjing Sun
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, PR China
| | - Ying Zhao
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, PR China
| | - Huangzhao Wei
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, PR China.
| | - Chenglin Sun
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, PR China.
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Nair KM, Kumaravel V, Pillai SC. Carbonaceous cathode materials for electro-Fenton technology: Mechanism, kinetics, recent advances, opportunities and challenges. CHEMOSPHERE 2021; 269:129325. [PMID: 33385665 DOI: 10.1016/j.chemosphere.2020.129325] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 12/10/2020] [Accepted: 12/13/2020] [Indexed: 06/12/2023]
Abstract
Electro-Fenton (EF) technique has gained significant attention in recent years owing to its high efficiency and environmental compatibility for the degradation of organic pollutants and contaminants of emerging concern (CECs). The efficiency of an EF reaction relies primarily on the formation of hydrogen peroxide (H2O2) via 2e─ oxygen reduction reaction (ORR) and the generation of hydroxyl radicals (●OH). This could be achieved through an efficient cathode material which operates over a wide pH range (pH 3-9). Herein, the current progresses on the advancements of carbonaceous cathode materials for EF reactions are comprehensively reviewed. The insights of various materials such as, activated carbon fibres (ACFs), carbon/graphite felt (CF/GF), carbon nanotubes (CNTs), graphene, carbon aerogels (CAs), ordered mesoporous carbon (OMCs), etc. are discussed inclusively. Transition metals and hetero atoms were used as dopants to enhance the efficiency of homogeneous and heterogeneous EF reactions. Iron-functionalized cathodes widened the working pH window (pH 1-9) and limited the energy consumption. The mechanism, reactor configuration, and kinetic models, are explained. Techno economic analysis of the EF reaction revealed that the anode and the raw materials contributed significantly to the overall cost. It is concluded that most reactions follow pseudo-first order kinetics and rotating cathodes provide the best H2O2 production efficiency in lab scale. The challenges, future prospects and commercialization of EF reaction for wastewater treatment are also discussed.
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Affiliation(s)
- Keerthi M Nair
- Centre for Precision Engineering, Materials and Manufacturing Research (PEM), Institute of Technology, Sligo, F91 YW50, Ireland; Nanotechnology and Bio-Engineering Research Group, Department of Environmental Science, Institute of Technology, Sligo, F91 YW50, Ireland
| | - Vignesh Kumaravel
- Centre for Precision Engineering, Materials and Manufacturing Research (PEM), Institute of Technology, Sligo, F91 YW50, Ireland; Nanotechnology and Bio-Engineering Research Group, Department of Environmental Science, Institute of Technology, Sligo, F91 YW50, Ireland
| | - Suresh C Pillai
- Centre for Precision Engineering, Materials and Manufacturing Research (PEM), Institute of Technology, Sligo, F91 YW50, Ireland; Nanotechnology and Bio-Engineering Research Group, Department of Environmental Science, Institute of Technology, Sligo, F91 YW50, Ireland.
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Wang J, Li C, Rauf M, Luo H, Sun X, Jiang Y. Gas diffusion electrodes for H 2O 2 production and their applications for electrochemical degradation of organic pollutants in water: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 759:143459. [PMID: 33223172 DOI: 10.1016/j.scitotenv.2020.143459] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 10/15/2020] [Accepted: 10/22/2020] [Indexed: 06/11/2023]
Abstract
Nowadays, it is a great challenge to minimize the negative impact of hazardous organic compounds in the environment. Highly efficient hydrogen peroxide (H2O2) production through electrochemical methods with gas diffusion electrodes (GDEs) is greatly demand for degradation of organic pollutants that present in drinking water and industrial wastewater. The GDEs as cathodic electrocatalyst manifest more cost-effective, lower energy consumption and higher oxygen utilization efficiency for H2O2 production as compared to other carbonaceous cathodes due to its worthy chemical and physical characteristics. In recent years, the crucial research and practical application of GDE for degradation of organic pollutants have been well developed. In this review, we focus on the novel design, fundamental aspects, influence factors, and electrochemical properties of GDEs. Furthermore, we investigate the generation of H2O2 through electrocatalytic processes and degradation mechanisms of refractory organic pollutants on GDEs. We describe the advanced methodologies towards electrochemical kinetics, which include the enhancement of GDEs electrochemical catalytic activity and mass transfer process. More importantly, we also highlight the other technologies assisted electrochemical process with GDEs to enlarge the practical application for water treatment. In addition, the developmental prospective and the existing research challenges of GDE-based electrocatalytic materials for real applications in H2O2 production and wastewater treatment are forecasted. According to our best knowledge, only few review articles have discussed GDEs in detail for H2O2 production and their applications for degradation of organic pollutants in water.
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Affiliation(s)
- Jingwen Wang
- Shenzhen Key Laboratory of Organic Pollution Prevention and Control, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, PR China
| | - Chaolin Li
- Shenzhen Key Laboratory of Organic Pollution Prevention and Control, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, PR China.
| | - Muhammad Rauf
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, PR China
| | - Haijian Luo
- Education Center of Experiments and Innovations, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, PR China
| | - Xue Sun
- Shenzhen Key Laboratory of Organic Pollution Prevention and Control, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, PR China
| | - Yiqi Jiang
- Shenzhen Key Laboratory of Organic Pollution Prevention and Control, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, PR China
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Su H, Chu Y, Miao B. Degreasing cotton used as pore-creating agent to prepare hydrophobic and porous carbon cathode for the electro-Fenton system: enhanced H 2O 2 generation and RhB degradation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:10.1007/s11356-021-12965-z. [PMID: 33641103 DOI: 10.1007/s11356-021-12965-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 02/10/2021] [Indexed: 06/12/2023]
Abstract
A porous carbon cathode was prepared using graphite, polytetrafluoroethylene (PTFE), and degreasing cotton (DC) through sintering treatment. The carbonization of DC by heat treatment played an ideal role in pore-creating, which weakened the mass transfer resistance of O2, and as a result, the adoption of degreasing cotton significantly improved the performance of H2O2 electro-generation. The optimized cathode was able to generate 567 mg L-1 H2O2 with a current efficiency (CE) of 86.7% by the electrochemical reaction of 60 min in a divided reactor. Furthermore, the degradation of rhodamine B (RhB) was carried out by an electro-Fenton system using the optimal cathode selected. The developed electro-Fenton system exhibited an excellent RhB degradation performance. The RhB solution of 50 mg L-1 was decolorized completely by the treatment of 10 min. Moreover, the degradation of 50~90 mg L-1 RhB solution presented over 90% TOC removal by the treatment of 120 min, indicating the ideal mineralization of organic pollutants. In addition, it was found that •OH was the major oxidizing specie responsible for the organics degradation. Finally, the possible pathway of RhB degradation in the electro-Fenton system was proposed by GC-MS analysis. The adoption of natural fibers for pore-creating provides an innovative and low-cost method to prepare porous cathode, which may promote the application of electro-Fenton oxidation in wastewater treatment.
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Affiliation(s)
- Hongzhao Su
- School of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, 266042, Shandong, China
| | - Yanyang Chu
- School of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, 266042, Shandong, China.
| | - Baoyu Miao
- School of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, 266042, Shandong, China
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20
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Wang W, Lu X, Su P, Li Y, Cai J, Zhang Q, Zhou M, Arotiba O. Enhancement of hydrogen peroxide production by electrochemical reduction of oxygen on carbon nanotubes modified with fluorine. CHEMOSPHERE 2020; 259:127423. [PMID: 32574847 DOI: 10.1016/j.chemosphere.2020.127423] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 06/03/2020] [Accepted: 06/13/2020] [Indexed: 06/11/2023]
Abstract
It is vital to synthesis hydrogen peroxide via electrochemical reduction of oxygen since it is a green process to produce oxidant with wide applications including water/wastewater treatment. In this work, fluorine (F) was employed to modify carbon nanotube (CNT), and the obtained F doped CNT (F-CNT) catalyst was used to fabricate gas diffusion electrode (GDE). It was found that F doping could improve oxygen reduction activity and H2O2 selectivity, and then enhanced the H2O2 production. After modification, F-CNT prepared with 0.6 M HF (CNT-F-0.6) had much higher H2O2 production (47.6 mg L-1) and current efficiency (89.5%) than that of CNT (29.6 mg L-1, 70.1%) at bias voltage of -1.3 V (vs SCE) and pH 7. Moreover, the high catalytic activity of CNT-F-0.6 could maintain in 5 consecutive reaction cycles. The material characterization and electrochemical test indicated that F doping had no significant effects on the surface area of CNT, but improved the defect degree of CNT. The enhanced H2O2 production performance could be ascribed to the formation of CF2 and CF3 on the surface of F-doped CNT, which rendered the potential for practical application of novel carbon catalyst for GDE.
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Affiliation(s)
- Wei Wang
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Advanced Water Treatment Technology International Joint Research Center, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Xiaoye Lu
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Advanced Water Treatment Technology International Joint Research Center, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Pei Su
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Advanced Water Treatment Technology International Joint Research Center, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Yawei Li
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Advanced Water Treatment Technology International Joint Research Center, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Jingju Cai
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Advanced Water Treatment Technology International Joint Research Center, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Qizhan Zhang
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Advanced Water Treatment Technology International Joint Research Center, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Minghua Zhou
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Advanced Water Treatment Technology International Joint Research Center, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China.
| | - Omotayo Arotiba
- Department of Applied Chemistry, University of Johannesburg, Doornfontein, South Africa
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21
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Su P, Zhou M, Song G, Du X, Lu X. Efficient H 2O 2 generation and spontaneous OH conversion for in-situ phenol degradation on nitrogen-doped graphene: Pyrolysis temperature regulation and catalyst regeneration mechanism. JOURNAL OF HAZARDOUS MATERIALS 2020; 397:122681. [PMID: 32416381 DOI: 10.1016/j.jhazmat.2020.122681] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 04/05/2020] [Accepted: 04/06/2020] [Indexed: 06/11/2023]
Abstract
H2O2 is a green and valuable chemical that can be electrochemically synthesis from oxygen reduction, offering in-situ application for organic pollutants removal in environmental remediation. However, how to improve activity and further convert into powerful radicals is a still challenge. Herein, we show a facile and general approach to fabricate nitrogen-doped graphene (N-GE) catalyst via pyrolysis temperature regulation. The optimal N-GE at 400 °C exhibited the highest active N content (12.2 wt.%) and H2O2 selectivity (85.45 %) and spontaneous OH production (19.42 μM), achieving a high phenol degradation (93.58 %) at 180 min in neutral pH condition. Importantly, a simple catalyst regeneration method and mechanism was disclosed. It is proposed that the conversion of graphite N and pyridinic N in N-GE plays an important role in oxygen reduction reaction (ORR) and OH conversion, while the conversion of pyridinic N-oxide to pyridinic N is critical to catalyst stability and sustainability. This study provides a new insight into structure design of electro-catalyst about stability of nitrogen-doped carbon materials for efficient H2O2 generation and cost-effective pollutants removal.
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Affiliation(s)
- Pei Su
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Advanced Water Treatment Technology International Joint Research Center, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Minghua Zhou
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Advanced Water Treatment Technology International Joint Research Center, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China.
| | - Ge Song
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Advanced Water Treatment Technology International Joint Research Center, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Xuedong Du
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Advanced Water Treatment Technology International Joint Research Center, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Xiaoye Lu
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; Tianjin Advanced Water Treatment Technology International Joint Research Center, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
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Jiao Y, Ma L, Tian Y, Zhou M. A flow-through electro-Fenton process using modified activated carbon fiber cathode for orange II removal. CHEMOSPHERE 2020; 252:126483. [PMID: 32197180 DOI: 10.1016/j.chemosphere.2020.126483] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 03/01/2020] [Accepted: 03/12/2020] [Indexed: 05/03/2023]
Abstract
This study investigated the removal of Orange II by an electro-Fenton process using a novel recirculation flow-through reactor. The hydrogen peroxide was generated in-situ on the activated carbon fiber (ACF) modified with carbon black and polytetrafluoroethylene (PTFE). The modified ACF cathode was characterized by scanning electron microscopy (SEM) and nitrogen adsorption-desorption study. In light of the production of H2O2 and removal of Orange II, the optimum weight percentage of PTFE in the mixture of carbon black and PTFE was 75%. The effects of some important operating parameters such as current and flow rate were investigated. The best Orange II removal reached 96.7% with mineralization efficiency of 55.4% at 120 min under the current of 100 mA, initial pH 3, Fe2+ 0.3 mM and the flow rate of 7 mL min-1. The cathode exhibited good regeneration ability and stability. OH was proved to be the main oxidizing species in this flow-through electro-Fenton system. This work demonstrated that such electro-Fenton process using modified ACF cathode was promising for the degradation of organic pollutants.
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Affiliation(s)
- Yongli Jiao
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, Tianjin Advanced Water Treatment Technology International Joint Research Center, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Liang Ma
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, Tianjin Advanced Water Treatment Technology International Joint Research Center, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Yusi Tian
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, Tianjin Advanced Water Treatment Technology International Joint Research Center, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Minghua Zhou
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, Tianjin Advanced Water Treatment Technology International Joint Research Center, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China.
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23
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Highly efficient electrosynthesis of hydrogen peroxide on a superhydrophobic three-phase interface by natural air diffusion. Nat Commun 2020; 11:1731. [PMID: 32265452 PMCID: PMC7138826 DOI: 10.1038/s41467-020-15597-y] [Citation(s) in RCA: 144] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 03/19/2020] [Indexed: 12/02/2022] Open
Abstract
Hydrogen peroxide (H2O2) synthesis by electrochemical oxygen reduction reaction has attracted great attention as a green substitute for anthraquinone process. However, low oxygen utilization efficiency (<1%) and high energy consumption remain obstacles. Herein we propose a superhydrophobic natural air diffusion electrode (NADE) to greatly improve the oxygen diffusion coefficient at the cathode about 5.7 times as compared to the normal gas diffusion electrode (GDE) system. NADE allows the oxygen to be naturally diffused to the reaction interface, eliminating the need to pump oxygen/air to overcome the resistance of the gas diffusion layer, resulting in fast H2O2 production (101.67 mg h-1 cm-2) with a high oxygen utilization efficiency (44.5%–64.9%). Long-term operation stability of NADE and its high current efficiency under high current density indicate great potential to replace normal GDE for H2O2 electrosynthesis and environmental remediation on an industrial scale. H2O2 electrosynthesis has garnered great attention as a green alternative to the anthraquinone process. Here the authors propose a cost-effective cathode to greatly improve the O2 diffusion coefficient, resulting in a high H2O2 production without the need for aeration.
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24
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Muddemann T, Haupt DR, Sievers M, Kunz U. Improved Operating Parameters for Hydrogen Peroxide‐Generating Gas Diffusion Electrodes. CHEM-ING-TECH 2020. [DOI: 10.1002/cite.201900137] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Thorben Muddemann
- Clausthal University of Technology Institute of Chemical and Electrochemical Process Engineering Leibnizstraße 17 38678 Clausthal-Zellerfeld Germany
| | - Dennis R. Haupt
- Clausthal University of Technology CUTEC Research Center for Environmental Technologies Leibnizstraße 23 38678 Clausthal-Zellerfeld Germany
| | - Michael Sievers
- Clausthal University of Technology CUTEC Research Center for Environmental Technologies Leibnizstraße 23 38678 Clausthal-Zellerfeld Germany
| | - Ulrich Kunz
- Clausthal University of Technology Institute of Chemical and Electrochemical Process Engineering Leibnizstraße 17 38678 Clausthal-Zellerfeld Germany
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Kim J, Zhang T, Liu W, Du P, Dobson JT, Huang CH. Advanced Oxidation Process with Peracetic Acid and Fe(II) for Contaminant Degradation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:13312-13322. [PMID: 31638386 DOI: 10.1021/acs.est.9b02991] [Citation(s) in RCA: 187] [Impact Index Per Article: 37.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Fe(II) is an excellent promoter for advanced oxidation processes (AOPs) because of its environmental ubiquity and low toxicity. This study is among the first to characterize the reaction of peracetic acid (PAA) with Fe(II) ion and apply the Fe(II)/PAA AOP for degradation of micropollutants. PAA reacts with Fe(II) (k = 1.10 × 105-1.56 × 104 M-1 s-1 at pH 3.0-8.1) much more rapidly than H2O2 and outperforms the coexistent H2O2 for reaction with Fe(II). While PAA alone showed minimal reactivity with methylene blue, naproxen, and bisphenol-A, significant abatement (48-98%) of compounds was observed by Fe(II)/PAA at initial pH of 3.0-8.2. The micropollutant degradation by Fe(II)/PAA exhibited two kinetic phases (very rapid then slow) related to PAA and H2O2, respectively. Based on experimental evidence, formation of carbon-centered radicals (CH3C(O)O•, CH3C(O)•, and •CH3), •OH, and Fe(IV) reactive intermediate species from the PAA and Fe(II) reactions in the presence of H2O2 is hypothesized. The carbon-centered radicals and/or Fe(IV) likely played an important role in micropollutant degradation in the initial kinetic phase, while •OH was important in the second reaction phase. The transformation products of micropollutants showed lower model-predicted toxicity than their parent compounds. This study significantly advances the understanding of PAA and Fe(II) reaction and demonstrates Fe(II)/PAA to be a feasible advanced oxidation technology.
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Affiliation(s)
- Juhee Kim
- School of Civil and Environmental Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Tianqi Zhang
- School of Civil and Environmental Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Wen Liu
- School of Civil and Environmental Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
- College of Environmental Sciences and Engineering , Peking University , Beijing 100871 , China
| | - Penghui Du
- School of Civil and Environmental Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
- Beijing Engineering Research Center of Process Pollution Control, Division of Environment Technology and Engineering , Institute of Process Engineering, Chinese Academy of Sciences , Beijing 100190 , China
| | - Jordan T Dobson
- School of Civil and Environmental Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Ching-Hua Huang
- School of Civil and Environmental Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
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26
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Lu X, Zhou M, Li Y, Su P, Cai J, Pan Y. Improving the yield of hydrogen peroxide on gas diffusion electrode modified with tert-butyl-anthraquinone on different carbon support. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.07.063] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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27
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Zhao Q, An J, Wang S, Qiao Y, Liao C, Wang C, Wang X, Li N. Superhydrophobic Air-Breathing Cathode for Efficient Hydrogen Peroxide Generation through Two-Electron Pathway Oxygen Reduction Reaction. ACS APPLIED MATERIALS & INTERFACES 2019; 11:35410-35419. [PMID: 31465198 DOI: 10.1021/acsami.9b09942] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Electrochemical catalysis of carbon-based material via two-electron pathway oxygen reduction reaction (ORR) offers great potential for in situ hydrogen peroxide (H2O2) production. In this work, we tuned catalyst mesostructure and hydrophilicity/hydrophobicity by adjusting polytetrafluoroethylene (PTFE) content in graphite/carbon black/PTFE hybrid catalyst layer (CL), aimed to improving the two-electron ORR activity for efficient H2O2 generation. As the only superhydrophobic CL with initiating contact angles of 141.11°, PTFE0.57 obtained the highest H2O2 yield of 3005 ± 58 mg L-1 h-1 (at 25 mA cm-2) and highest current efficiency (CE) of 84% (at 20 mA cm-2). Rotating ring disk electrode (RRDE) results demonstrated that less PTFE content in CLs results in less electrons transferred and better selectivity toward two-electron ORR. Though the highest H2 concentration (2 μmol L-1 at 25 mA cm-2) was monitored from PTFE0.57 which contained the lowest PTFE, the CE decreased inversely with increasing content of PTFE, which proved that the H2O2 decomposition reaction was the major side reaction. Higher PTFE content increased the hydrophilicity of CL for excessive H+ and insufficient O2 diffusion, which induced H2O2 decomposition into H2O. Simultaneously, the electroactive surface area of CLs decreased with higher PTFE content, from 0.0041 m2 g-1 of PTFE0.57 to 0.0019 m2 g-1 of PTFE4.56. Besides, higher PTFE content in CL leads to the increase of total impedance (from 14.5 Ω of PTFE0.57 to 18.3 Ω of PTFE4.56), which further hinders the electron transfer and ORR activity.
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Affiliation(s)
- Qian Zhao
- Tianjin Key Lab Indoor Air Environmental Quality Control, School of Environmental Science and Engineering , Tianjin University , No. 92 Weijin Road, Nankai District , Tianjin 300072 , China
| | - Jingkun An
- Tianjin Key Lab Indoor Air Environmental Quality Control, School of Environmental Science and Engineering , Tianjin University , No. 92 Weijin Road, Nankai District , Tianjin 300072 , China
| | - Shu Wang
- Tianjin Key Lab Indoor Air Environmental Quality Control, School of Environmental Science and Engineering , Tianjin University , No. 92 Weijin Road, Nankai District , Tianjin 300072 , China
| | - Yujie Qiao
- Tianjin Key Lab Indoor Air Environmental Quality Control, School of Environmental Science and Engineering , Tianjin University , No. 92 Weijin Road, Nankai District , Tianjin 300072 , China
| | - Chengmei Liao
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control , Nankai University , No. 38 Tongyan Road, Jinnan District , Tianjin 300350 , China
| | - Cong Wang
- Tianjin Key Lab Indoor Air Environmental Quality Control, School of Environmental Science and Engineering , Tianjin University , No. 92 Weijin Road, Nankai District , Tianjin 300072 , China
| | - Xin Wang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control , Nankai University , No. 38 Tongyan Road, Jinnan District , Tianjin 300350 , China
| | - Nan Li
- Tianjin Key Lab Indoor Air Environmental Quality Control, School of Environmental Science and Engineering , Tianjin University , No. 92 Weijin Road, Nankai District , Tianjin 300072 , China
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28
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Zhou W, Meng X, Gao J, Alshawabkeh AN. Hydrogen peroxide generation from O 2 electroreduction for environmental remediation: A state-of-the-art review. CHEMOSPHERE 2019; 225:588-607. [PMID: 30903840 PMCID: PMC6921702 DOI: 10.1016/j.chemosphere.2019.03.042] [Citation(s) in RCA: 106] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 03/08/2019] [Accepted: 03/08/2019] [Indexed: 05/12/2023]
Abstract
The electrochemical production of hydrogen peroxide (H2O2) by 2-electron oxygen reduction reaction (ORR) is an attractive alternative to the present complex anthraquinone process. The objective of this paper is to provide a state-of-the-arts review of the most important aspects of this process. First, recent advances in H2O2 production are reviewed and the advantages of H2O2 electrogeneration via 2-electron ORR are highlighted. Second, the selectivity of the ORR pathway towards H2O2 formation as well as the development process of H2O2 production are presented. The cathode characteristics are the decisive factors of H2O2 production. Thus the focus is shifted to the introduction of commonly used carbon cathodes and their modification methods, including the introduction of other active carbon materials, hetero-atoms doping (i.e., O, N, F, B, and P) and decoration with metal oxides. Cathode stability is evaluated due to its significance for long-term application. Effects of various operational parameters, such as electrode potential/current density, supporting electrolyte, electrolyte pH, temperature, dissolved oxygen, and current mode on H2O2 production are then discussed. Additionally, the environmental application of electrogenerated H2O2 on aqueous and gaseous contaminants removal, including dyes, pesticides, herbicides, phenolic compounds, drugs, VOCs, SO2, NO, and Hg0, are described. Finally, a brief conclusion about the recent progress achieved in H2O2 electrogeneration via 2-electron ORR and an outlook on future research challenges are proposed.
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Affiliation(s)
- Wei Zhou
- School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150001 PR China; Department of Civil and Environmental Engineering, Northeastern University, Boston, MA, 02115, USA
| | - Xiaoxiao Meng
- School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150001 PR China
| | - Jihui Gao
- School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150001 PR China.
| | - Akram N Alshawabkeh
- Department of Civil and Environmental Engineering, Northeastern University, Boston, MA, 02115, USA.
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Barrera H, Roa‐Morales G, Balderas‐Hernández P, Barrera‐Díaz CE, Frontana‐Uribe BA. Catalytic Effect of Hydrogen Peroxide in the Electrochemical Treatment of Phenolic Pollutants using a BDD Anode. ChemElectroChem 2019. [DOI: 10.1002/celc.201900174] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Héctor Barrera
- Centro Conjunto de Investigación de Química Sustentable CCIQSUAEM-UNAM Carretera Toluca Atlacomulco, km 14.5, C.P. 50200 Toluca, Estado de México México
| | - Gabriela Roa‐Morales
- Centro Conjunto de Investigación de Química Sustentable CCIQSUAEM-UNAM Carretera Toluca Atlacomulco, km 14.5, C.P. 50200 Toluca, Estado de México México
| | - Patricia Balderas‐Hernández
- Centro Conjunto de Investigación de Química Sustentable CCIQSUAEM-UNAM Carretera Toluca Atlacomulco, km 14.5, C.P. 50200 Toluca, Estado de México México
| | - Carlos E. Barrera‐Díaz
- Centro Conjunto de Investigación de Química Sustentable CCIQSUAEM-UNAM Carretera Toluca Atlacomulco, km 14.5, C.P. 50200 Toluca, Estado de México México
| | - Bernardo A. Frontana‐Uribe
- Centro Conjunto de Investigación de Química Sustentable CCIQSUAEM-UNAM Carretera Toluca Atlacomulco, km 14.5, C.P. 50200 Toluca, Estado de México México
- Universidad Nacional Autónoma de MéxicoInstituto de Química Circuito exterior Ciudad Universitaria Ciudad de México 04510 México
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30
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On the design of a jet-aerated microfluidic flow-through reactor for wastewater treatment by electro-Fenton. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.04.021] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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31
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Wang Y, Zhou W, Gao J, Ding Y, Kou K. Oxidative modification of graphite felts for efficient H2O2 electrogeneration: Enhancement mechanism and long-term stability. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2018.11.051] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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32
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Yang H, Zhou M, Yang W, Ren G, Ma L. Rolling-made gas diffusion electrode with carbon nanotube for electro-Fenton degradation of acetylsalicylic acid. CHEMOSPHERE 2018; 206:439-446. [PMID: 29758501 DOI: 10.1016/j.chemosphere.2018.05.027] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Revised: 04/19/2018] [Accepted: 05/02/2018] [Indexed: 05/20/2023]
Abstract
H2O2 production plays an important role in electro-Fenton process for pharmaceutical and personal care products (PPCPs) degradation. In this work, carbon nanotube (CNT) was attempted to make a gas diffusion electrode (GDE) by rolling method to achieve a high H2O2 production and current efficiency, and it was further used as electro-Fenton cathode for the degradation of acetylsalicylic acid (ASA) as one kind of PPCPs. The optimal amount of catalyst layer was 0.15 g CNT and 93.75 μL PTFE, obtaining the production of H2O2 of 805 mg L-1 in 0.05 mM Na2SO4 solution at 100 mA after 180 min. The degradation of ASA by electro-Fenton on such a CNT-GDE cathode was studied, and some important parameters such as current, pH as well as the dosage of Fe2+ were optimized. The degradation ratio of ASA could achieve almost 100% after 10 min and the TOC removal ratio was 62% at 1 h under the condition of 100 mA and pH 3, showing a great potential for the treatment of PPCPs.
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Affiliation(s)
- Huijia Yang
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Tianjin Advanced Water Treatment Technology International Joint Research Center, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Minghua Zhou
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Tianjin Advanced Water Treatment Technology International Joint Research Center, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.
| | - Weilu Yang
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Tianjin Advanced Water Treatment Technology International Joint Research Center, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Gengbo Ren
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Tianjin Advanced Water Treatment Technology International Joint Research Center, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Liang Ma
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Tianjin Advanced Water Treatment Technology International Joint Research Center, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
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33
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Pérez J, Llanos J, Sáez C, López C, Cañizares P, Rodrigo M. The pressurized jet aerator: A new aeration system for high-performance H2O2 electrolyzers. Electrochem commun 2018. [DOI: 10.1016/j.elecom.2018.02.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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34
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Baran W, Adamek E, Jajko M, Sobczak A. Removal of veterinary antibiotics from wastewater by electrocoagulation. CHEMOSPHERE 2018; 194:381-389. [PMID: 29223117 DOI: 10.1016/j.chemosphere.2017.11.165] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 11/03/2017] [Accepted: 11/28/2017] [Indexed: 06/07/2023]
Abstract
The aim of this study was to assess the effectiveness of veterinary antibiotic removal from wastewater using an electrocoagulation method. The removal efficiency of ampicillin, doxycycline, sulfathiazole and tylosin; the antibiotic degradation degree after electrolysis; and the toxicity and qualitative composition of antibiotic solutions after electrocoagulation were determined in the experiments. HPLC-QTOF was used for quantitative and qualitative determination. The eco-toxicity was assessed using the MARA® assay. After electrocoagulation, the concentration of ampicillin, doxycycline, sulfathiazole and tylosin in wastewater decreased 3.6 ± 3.2%, ∼100%, 3.3 ± 0.4% and 3.1 ± 0.3%, respectively. Doxycycline was the only antibiotic effectively removed from wastewater during electrocoagulation. Simultaneously, part of this antibiotic underwent oxidative degradation. As a result of this process, the eco-toxicity in the reaction environment decreased.
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Affiliation(s)
- Wojciech Baran
- Department of General and Analytical Chemistry, Medical University of Silesia, Jagiellońska 4, 41-200 Sosnowiec, Poland
| | - Ewa Adamek
- Department of General and Analytical Chemistry, Medical University of Silesia, Jagiellońska 4, 41-200 Sosnowiec, Poland.
| | - Marcin Jajko
- Department of General and Analytical Chemistry, Medical University of Silesia, Jagiellońska 4, 41-200 Sosnowiec, Poland; Student Research Group at the Department of General and Inorganic Chemistry, Medical University of Silesia, Jagiellońska 4, Sosnowiec, Poland
| | - Andrzej Sobczak
- Institute of Occupational Medicine and Environmental Health, Kościelna 13, 41-200 Sosnowiec, Poland
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35
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Li X, Liu L, Yang F. CFC/PVDF/GO-Fe3+ membrane electrode and flow-through system improved E-Fenton performance with a low dosage of aqueous iron. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2017.11.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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36
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Zhao K, Su Y, Quan X, Liu Y, Chen S, Yu H. Enhanced H2O2 production by selective electrochemical reduction of O2 on fluorine-doped hierarchically porous carbon. J Catal 2018. [DOI: 10.1016/j.jcat.2017.11.008] [Citation(s) in RCA: 142] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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37
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Pérez JF, Sáez C, Llanos J, Cañizares P, López C, Rodrigo MA. Improving the Efficiency of Carbon Cloth for the Electrogeneration of H2O2: Role of Polytetrafluoroethylene and Carbon Black Loading. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b02563] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- José F. Pérez
- Chemical Engineering Department,
Facultad de Ciencias y Tecnologías Químicas. University of Castilla-La Mancha, Edificio Enrique Costa Novella, Avenida Camilo
José Cela no. 12, 13071 Ciudad Real, Spain
| | - Cristina Sáez
- Chemical Engineering Department,
Facultad de Ciencias y Tecnologías Químicas. University of Castilla-La Mancha, Edificio Enrique Costa Novella, Avenida Camilo
José Cela no. 12, 13071 Ciudad Real, Spain
| | - Javier Llanos
- Chemical Engineering Department,
Facultad de Ciencias y Tecnologías Químicas. University of Castilla-La Mancha, Edificio Enrique Costa Novella, Avenida Camilo
José Cela no. 12, 13071 Ciudad Real, Spain
| | - Pablo Cañizares
- Chemical Engineering Department,
Facultad de Ciencias y Tecnologías Químicas. University of Castilla-La Mancha, Edificio Enrique Costa Novella, Avenida Camilo
José Cela no. 12, 13071 Ciudad Real, Spain
| | - Conrado López
- Chemical Engineering Department,
Facultad de Ciencias y Tecnologías Químicas. University of Castilla-La Mancha, Edificio Enrique Costa Novella, Avenida Camilo
José Cela no. 12, 13071 Ciudad Real, Spain
| | - Manuel A. Rodrigo
- Chemical Engineering Department,
Facultad de Ciencias y Tecnologías Químicas. University of Castilla-La Mancha, Edificio Enrique Costa Novella, Avenida Camilo
José Cela no. 12, 13071 Ciudad Real, Spain
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38
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Pérez J, Galia A, Rodrigo M, Llanos J, Sabatino S, Sáez C, Schiavo B, Scialdone O. Effect of pressure on the electrochemical generation of hydrogen peroxide in undivided cells on carbon felt electrodes. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.07.116] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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39
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Lu Y, Liu G, Luo H, Zhang R. Efficient in-situ production of hydrogen peroxide using a novel stacked electrosynthesis reactor. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.07.085] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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40
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Pérez J, Llanos J, Sáez C, López C, Cañizares P, Rodrigo M. The jet aerator as oxygen supplier for the electrochemical generation of H2O2. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.06.085] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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41
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Ganiyu SO, Oturan N, Raffy S, Esposito G, van Hullebusch ED, Cretin M, Oturan MA. Use of Sub-stoichiometric Titanium Oxide as a Ceramic Electrode in Anodic Oxidation and Electro-Fenton Degradation of the Beta-blocker Propranolol: Degradation Kinetics and Mineralization Pathway. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.05.047] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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42
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Choi DS, Ni Y, Fernández-Fueyo E, Lee M, Hollmann F, Park CB. Photoelectroenzymatic Oxyfunctionalization on Flavin-Hybridized Carbon Nanotube Electrode Platform. ACS Catal 2017. [DOI: 10.1021/acscatal.6b03453] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Da Som Choi
- Department
of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305−701, Republic of Korea
| | - Yan Ni
- Department
of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629HZ Delft, The Netherlands
| | - Elena Fernández-Fueyo
- Department
of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629HZ Delft, The Netherlands
| | - Minah Lee
- Department
of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305−701, Republic of Korea
| | - Frank Hollmann
- Department
of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629HZ Delft, The Netherlands
| | - Chan Beum Park
- Department
of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305−701, Republic of Korea
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43
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Carneiro JF, Paulo MJ, Siaj M, Tavares AC, Lanza MRV. Zirconia on Reduced Graphene Oxide Sheets: Synergistic Catalyst with High Selectivity for H2O2Electrogeneration. ChemElectroChem 2017. [DOI: 10.1002/celc.201600760] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jussara F. Carneiro
- Instituto de Química de São Carlos; Universidade de São Paulo; Avenida Trabalhador São Carlense 400 São Carlos 13566-590, SP Brazil
| | - Maria J. Paulo
- Institut National de la Recherche Scientifique - Énergie, Matériaux et Télécommunications; 1650 Boulevard Lionel-Boulet, Varennes Québec J3X 1S2 Canada
| | - Mohamed Siaj
- Département de Chimie - Faculté des Scienses; Université du Québec a Montréal; 8888 Station Centre-ville Montreal QC H3C 3P8 Canada
| | - Ana C. Tavares
- Institut National de la Recherche Scientifique - Énergie, Matériaux et Télécommunications; 1650 Boulevard Lionel-Boulet, Varennes Québec J3X 1S2 Canada
| | - Marcos R. V. Lanza
- Instituto de Química de São Carlos; Universidade de São Paulo; Avenida Trabalhador São Carlense 400 São Carlos 13566-590, SP Brazil
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44
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45
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Ma L, Zhou M, Ren G, Yang W, Liang L. A highly energy-efficient flow-through electro-Fenton process for organic pollutants degradation. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.03.181] [Citation(s) in RCA: 112] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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46
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Bustos YA, Rangel-Peraza JG, Rojas-Valencia MN, Bandala ER, Álvarez-Gallegos A, Vargas-Estrada L. Treatment of industrial effluents by electrochemical generation of H2O2 using an RVC cathode in a parallel plate reactor. ENVIRONMENTAL TECHNOLOGY 2015; 37:815-827. [PMID: 26419746 DOI: 10.1080/09593330.2015.1086820] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Electrochemical techniques have been used for the discolouration of synthetic textile industrial wastewater by Fenton's process using a parallel plate reactor with a reticulated vitreous carbon (RVC) cathode. It has been shown that RVC is capable of electro-generating and activating H2O2 in the presence of Fe(2+) added as catalyst and using a stainless steel mesh as anode material. A catholyte comprising 0.05 M Na2SO4, 0.001 M FeSO4.7H2O, 0.01 M H2SO4 and fed with oxygen was used to activate H2O2.The anolyte contained only 0.8 M H2SO4. The operating experimental conditions were 170 mA (2.0 V < ΔECell < 3.0 V) to generate 5.3 mM H2O2. Synthetic effluents containing various concentrations (millimolar - mM) of three different dyes, Blue Basic 9 (BB9), Reactive Black 5 (RB5) and Acid Orange 7 (AO7), were evaluated for discolouration using the electro-assisted Fenton reaction. Water discolouration was measured by UV-VIS absorbance reduction. Dye removal by electrolysis was a function of time: 90% discolouration of 0.08, 0.04 and 0.02 mM BB9 was obtained at 14, 10 and 6 min, respectively. In the same way, 90% discolouration of 0.063, 0.031 and 0.016 mM RB5 was achieved at 90, 60 and 30 min, respectively. Finally, 90% discolouration of 0.14, 0.07 and 0.035 mM AO7 was achieved at 70, 40 and 20 min, respectively. The experimental results confirmed the effectiveness of electro-assisted Fenton reaction as a strong oxidizing process in water discolouration and the ability of RVC cathode to electro-generate and activate H2O2 in situ.
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Affiliation(s)
- Yaneth A Bustos
- a División de Estudios de Posgrado e Investigación - Ingeniería Ambiental . Instituto Tecnológico de Culiacán . Av. Juan de Dios Batiz 310. Col. Guadalupe, 80220 Culiacán , Sinaloa , México
| | - Jesús Gabriel Rangel-Peraza
- a División de Estudios de Posgrado e Investigación - Ingeniería Ambiental . Instituto Tecnológico de Culiacán . Av. Juan de Dios Batiz 310. Col. Guadalupe, 80220 Culiacán , Sinaloa , México
| | - Ma Neftalí Rojas-Valencia
- b Universidad Nacional Autónoma de México, Instituto de Ingeniería, Coordinación de Ingeniería Ambiental , México , DF , Mexico
| | - Erick R Bandala
- c Departamento de Ingeniería Química, Alimentos y Ambiental , Universidad de las Américas , Puebla. Sta. Catarina Mártir, Cholula , México
| | - Alberto Álvarez-Gallegos
- d Centro de Investigación en Ingeniería y Ciencias Aplicadas (CIICAp), Universidad Autónoma del Estado de Morelos. Av. Universidad 1001. Col. Chamilpa 62209 , Cuernavaca , Morelos , México
| | - Laura Vargas-Estrada
- d Centro de Investigación en Ingeniería y Ciencias Aplicadas (CIICAp), Universidad Autónoma del Estado de Morelos. Av. Universidad 1001. Col. Chamilpa 62209 , Cuernavaca , Morelos , México
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Oxygen reduction to hydrogen peroxide on Fe3O4 nanoparticles supported on Printex carbon and Graphene. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.02.175] [Citation(s) in RCA: 104] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Xia G, Lu Y, Xu H. Electrogeneration of hydrogen peroxide for electro-Fenton via oxygen reduction using polyacrylonitrile-based carbon fiber brush cathode. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.01.102] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Barros WRP, Ereno T, Tavares AC, Lanza MRV. In Situ Electrochemical Generation of Hydrogen Peroxide in Alkaline Aqueous Solution by using an Unmodified Gas Diffusion Electrode. ChemElectroChem 2015. [DOI: 10.1002/celc.201402426] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Luo H, Li C, Wu C, Dong X. In situ electrosynthesis of hydrogen peroxide with an improved gas diffusion cathode by rolling carbon black and PTFE. RSC Adv 2015. [DOI: 10.1039/c5ra09636g] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A simply structured gas diffusion electrode (GDE) was constructed by rolling carbon black and PTFE as a conductive catalyst layer to enhance the producibility of hydrogen peroxide.
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Affiliation(s)
- Haijian Luo
- Environmental Science and Engineering Research Center
- Shenzhen Graduate School
- Harbin Institute of Technology
- Shenzhen 518055
- PR China
| | - Chaolin Li
- Environmental Science and Engineering Research Center
- Shenzhen Graduate School
- Harbin Institute of Technology
- Shenzhen 518055
- PR China
| | - Chiqing Wu
- Environmental Science and Engineering Research Center
- Shenzhen Graduate School
- Harbin Institute of Technology
- Shenzhen 518055
- PR China
| | - Xiaoqing Dong
- Department of Environmental Engineering Technology
- Shenzhen Institute of Information Technology
- Shenzhen 518172
- PR China
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