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Jeon S, Im M, Kim K, Kim D, Han JI. Electrochemically-mediated reactive separation of nitric oxide into nitrate using iron chelate. CHEMOSPHERE 2023; 341:140026. [PMID: 37659509 DOI: 10.1016/j.chemosphere.2023.140026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 08/29/2023] [Accepted: 08/30/2023] [Indexed: 09/04/2023]
Abstract
Valorization of nitric oxide is a promising solution for addressing the environmental and resource issues related to the nitrogen cycle. However, low concentrations of nitric oxide combined with impurities in exhaust streams limit its potential, and it requires extensive energy to produce high-purity nitric oxide. Here, we propose a synergistic reactive separation system that combines iron-chelate selective absorption with an electrochemical reaction to convert nitric oxide to nitrate. Among the iron-based chelates tested, EDTA was found to be the most effective in capturing gas-phase nitric oxide. Direct electrochemical oxidation of Fe-EDTA-NO solution exhibited Faradaic efficiency and a partial current density toward nitrate of 70% and 30.1 mA cm-2 at 2.2 V vs RHE and pH 7, resulting in a 43-fold enhancement of nitrate partial current density and a 2-fold improvement in Faradaic efficiency compared to simple purging without selective absorbent. Nitrate was then selectively recovered from the Fe-EDTA system using simple polarity reversal following electrooxidation with a separation factor of 13 over background sulfate. This study offers a new approach to gas-phase NO remediation and valorization using an electrified means.
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Affiliation(s)
- SeokHwan Jeon
- Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Mintaek Im
- Environment & Sustainable Resources Research Center, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
| | - Kwiyong Kim
- Department of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan, 44919, Republic of Korea; Graduate School of Carbon Neutrality, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan, 44919, Republic of Korea.
| | - DongYeon Kim
- Environment & Sustainable Resources Research Center, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea; Research Institute, Bluetec, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea.
| | - Jong-In Han
- Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
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Liu Q, Yu K, Yi P, Cao W, Chen X, Zhang X. Regeneration of Fe II /Fe III complex from NO chelating absorption by microbial fuel cell. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:19540-19548. [PMID: 31077045 DOI: 10.1007/s11356-019-05291-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 04/23/2019] [Accepted: 04/25/2019] [Indexed: 06/09/2023]
Abstract
Ferrous chelates (FeIIEDTA) can effectively absorb NO, but the regeneration of them usually consumes large amounts of organic matter or energy. In this study, a new approach to regenerate NO absorbed ferrous chelates with simultaneous electricity generation was investigated by a microbial fuel cell (MFC). The performance and mechanisms of FeIIEDTA regeneration were evaluated in the cathode of MFC reactor with and without the presence of microorganisms (referring to biocathode and abiotic cathode), respectively. It was found that FeIIEDTA-NO and FeIIIEDTA could be used as the cathode electron acceptors in MFC. Low pH (pH = 5) was beneficial to electricity generation and FeIIIEDTA/FeIIEDTA-NO reduction by the abiotic cathode. The biocathode performed better in electricity generation and FeIIEDTA regeneration, and achieved a FeIIIEDTA reducing rate of 0.34 h-1 and a FeIIEDTA-NO reducing rate of 0.97 L mmol-1 h-1, which are much higher that than those for the abiotic cathode (0.23 h-1 for FeIIIEDTA, 0.44 L mmol-1 h-1 for FeIIEDTA-NO). This was likely because the activation polarization loss and over cathode potential were reduced as a result of the catalytic activity of NO and iron reducing bacteria.
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Affiliation(s)
- Qiang Liu
- School of Environmental and Chemical Engineering, Shanghai University, No. 99 Shangda Road, Shanghai, 200444, China
| | - Keyan Yu
- School of Environmental and Chemical Engineering, Shanghai University, No. 99 Shangda Road, Shanghai, 200444, China
| | - Peng Yi
- Shaoxing Environmental Industry co., LTD, Intersection of Yuedong Road and Qunxian Road, Yuecheng District, Shaoxing, Zhejiang, 312000, China
| | - Weimin Cao
- College of Sciences, Shanghai University, No. 99 Shangda Rd, Shanghai, 200444, China
| | - Xueping Chen
- School of Environmental and Chemical Engineering, Shanghai University, No. 99 Shangda Road, Shanghai, 200444, China
| | - Xiaolei Zhang
- School of Environmental and Chemical Engineering, Shanghai University, No. 99 Shangda Road, Shanghai, 200444, China.
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Jiang W, Wang X, Xu Q, Xiao J, Wei X. The regeneration of Fe-EDTA denitration solutions by nanoscale zero-valent iron. RSC Adv 2019; 9:132-138. [PMID: 35521621 PMCID: PMC9059285 DOI: 10.1039/c8ra08992b] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 12/09/2018] [Indexed: 11/29/2022] Open
Abstract
Fe(ii) ethylenediaminetetraacetate (EDTA) chelate solution is generally considered to be an effective nitric oxide (NO) absorbent. However, since the ferrous active site is occupied by nitric oxide and the ferrous chelate is oxidized to ferric chelate by oxygen in air, its absorption capacity will gradually decrease with the NO absorption process. Here, we propose a method for regenerating the NO-attenuated Fe(ii)EDTA solution by adding nanoscale zero-valent iron (NZVI) under three different pH conditions. Furthermore, compared with the commercially available iron powder, NZVI was also found to be effective not only for the regeneration of expired Fe-EDTA solution but also for the reduction of Fe(iii) EDTA solution. According to the results obtained herein, different acidity levels of solution, from weakly acidic to near neutral, are all suitable for the regeneration–absorption process. NZVI is very effective for the regeneration of the inactive Fe chelate solution in the NO absorption process.![]()
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Affiliation(s)
- Wei Jiang
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871
- China
| | - Xiaolong Wang
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871
- China
| | - Qiang Xu
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871
- China
| | - Jianbai Xiao
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871
- China
| | - Xionghui Wei
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871
- China
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Aas BM, Klüfers P. The Structural Chemistry of Stable High‐Spin Nitrosyl–Iron(II) Compounds with Aminecarboxylato Co‐Ligands in Aqueous Solution. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201601330] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Bianca M. Aas
- Department Chemie Ludwig‐Maximilians‐Universität München Butenandtstraße 5‐13 82377 München Germany
| | - Peter Klüfers
- Department Chemie Ludwig‐Maximilians‐Universität München Butenandtstraße 5‐13 82377 München Germany
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He F, Deng X, Chen M. Nitric oxide removal by combined urea and Fe IIEDTA reaction systems. CHEMOSPHERE 2017; 168:623-629. [PMID: 27836274 DOI: 10.1016/j.chemosphere.2016.11.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Revised: 11/01/2016] [Accepted: 11/03/2016] [Indexed: 06/06/2023]
Abstract
(NH2)2CO as well as FeIIEDTA is an absorbent for simultaneous desulfurization and denitrification. However, they have their own drawbacks, like the oxidation of FeIIEDTA and the low solubility of NO in urea solution. To overcome these defects, A mixed absorbent containing both (NH2)2CO and FeIIEDTA was employed. The effects of various operating parameters (urea and FeIIEDTA concentration, temperature, inlet oxygen concentration, pH value) on NO removal were examined in the packed tower. The results indicated that the NO removal efficiency increased with the decrease of oxygen concentration as well as the increase of FeIIEDTA concentration. The NO removal efficiency had little change with a range of 25-45 °C, and sharply decreased at the temperature of above 55 °C. The NO removal efficiency initially increases up to the maximum value and then decreases with the increase of pH value as well as the raise of urea concentration. In addition, the synergistic mechanism of (NH2)2CO and FeIIEDTA on NO removal was investigated. Results showed that urea could react with FeIIEDTA-NO to produce FeIIEDTA, N2, and CO2, and hinder oxidation of FeIIEDTA. Finally, to evaluate the effect of SO32- on NO removal, a mixed absorbent containing FeIIEDTA, urea, and Na2SO3 was employed to absorb NO. The mixed absorbent could maintain more than 78% for 80 min at 25 °C, pH = 7.0, (NH2)2CO concentration of 5 wt%, FeIIEDTA concentration of 0.02 M, O2 concentration of 7% (v/v), and Na2SO3 concentration of 0.2 M.
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Affiliation(s)
- Feiqiang He
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, PR China.
| | - Xianhe Deng
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, PR China
| | - Min Chen
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, PR China
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Augustyniak AW, Suchecki TT, Kumazawa H. Reactivity of nano-size zinc powder in the aqueous solution of [Fe III(edta)(H 2O)] . ENVIRONMENTAL TECHNOLOGY 2017; 38:103-107. [PMID: 27227652 DOI: 10.1080/09593330.2016.1186745] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Accepted: 05/02/2016] [Indexed: 06/05/2023]
Abstract
Nitrogen mono-oxide and sulfur dioxide can be removed by simultaneous absorption into aqueous mixed solutions of sulfite and [FeII(edta)]H2O)]2-, ferrous ion coordinated to an anion of ethylene-diaminetetraacetic acid (EDTA or edta). In the industrial system with coexisting oxygen in the gas phase, [FeII(edta)](H2O)]2- complex is oxidized to [FeIII(edta)](H2O)]- by molecular oxygen. Because the ferric complex has no capability for reaction with NO, the suppression of this undesired oxidation process is a very important technological problem to be overcome. In our preceding work, we discussed the reduction kinetics of ferric ion by metal powder on the basis of the kinetic data regarding the ferric ion reduction in aqueous solutions of [FeIII(edta)](H2O)]- containing aluminum, tin or zinc powders. Zinc powder of normal size was recognized as an effective reducing agent. In the present work, augmentation of reducing capability of zinc powder was examined more. The rate of reduction of nano-size zinc powder was found to be about 11 times higher than that of normal-size zinc one.
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Affiliation(s)
| | - Tomasz T Suchecki
- b Faculty of Environmental Engineering , Wroclaw University of Technology , Wrocław , Poland
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Suchecki TT, Mathews B, Augustyniak AW, Kumazawa H. Applied Kinetics Aspects of Ferric EDTA Complex Reduction with Metal Powder. Ind Eng Chem Res 2014. [DOI: 10.1021/ie502100h] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tomasz T. Suchecki
- Faculty of Environmental Engineering, Wroclaw University of Technology, Wybrzeze Wyspianskiego 27, 50-379 Wroclaw, Poland
| | - Barbara Mathews
- Institute of Environmental Engineering, Polish Academy of Sciences, M. Curie-Sklodowskiej 34, 41-819 Zabrze, Poland
| | - Adam W. Augustyniak
- Faculty of Environmental Engineering, Wroclaw University of Technology, Wybrzeze Wyspianskiego 27, 50-379 Wroclaw, Poland
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Yan B, Yang J, Guo M, Chen G, Li Z, Ma S. Study on NO enhanced absorption using FeIIEDTA in (NH4)2SO3 solution. J IND ENG CHEM 2014. [DOI: 10.1016/j.jiec.2013.10.036] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Franke A, van Eldik R. Factors That Determine the Mechanism of NO Activation by Metal Complexes of Biological and Environmental Relevance. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201201111] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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de Salas C, Blank O, Heinrich MR. Radical carbonitrosation and recycling of the waste gas nitrogen monoxide. Chemistry 2011; 17:9306-10. [PMID: 21766369 DOI: 10.1002/chem.201101565] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2011] [Indexed: 11/10/2022]
Affiliation(s)
- Cristina de Salas
- Department für Chemie und Pharmazie, Pharmazeutische Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schuhstrasse 19, 91052 Erlangen, Germany
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