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Gonzaga IM, Dória AR, Castro RS, Souza MR, Rodrigo MA, Eguiluz KI, Salazar-Banda GR. Microwave-prepared Ti/RuO2-IrO2 anodes: Influence of IrO2 content on atrazine removal. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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2
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Flores-Terreros RR, Serna-Galvis EA, Navarro-Laboulais J, Torres-Palma RA, Nieto-Juárez JI. An alternative approach to the kinetic modeling of pharmaceuticals degradation in high saline water by electrogenerated active chlorine species. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 315:115119. [PMID: 35500483 DOI: 10.1016/j.jenvman.2022.115119] [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: 01/12/2022] [Revised: 04/14/2022] [Accepted: 04/18/2022] [Indexed: 06/14/2023]
Abstract
A semiempirical approach considering the rate of reactive chlorine species-RCS- production (ΦE) as a function of current and Cl- concentration for the modeling of acetaminophen (ACE) degradation is presented. A filter-press reactor having a Ti/RuO2-ZrO2 (Sb2O3 doped) anode, NaCl (0.04-0.1 mol L-1) as supporting electrolyte, and operated in continuous mode, was considered. A current of 100 mA and a flow of 11 mL min-1 favored the electrogeneration of RCS and ACE degradation. Hydraulic retention time and ΦE were the most relevant parameters for the RCS production. These two parameters, plus the pollutant concentration, were very determinant for the ACE degradation. The model successfully reproduced the ACE removal in distilled water at different concentrations (10, 20, 40, and 60 mg L-1). The electrochemical system achieved removals between 80 and 100% of ACE in distilled water. The ACE treatment in actual seawater (a chloride-rich matrix, 0.539 mol L-1 of Cl-) was assessed, and the degradation was simulated using the developed model. The competing role toward electrogenerated RCS by intrinsic organic matter (3.2 mg L-1) in the seawater was a critical point, and the simulated values fitted well with the experimental data. Finally, the action of the electrochemical system on ciprofloxacin (CIP) in real seawater and its antimicrobial activity was tested. CIP removal (100% at 120 s) was faster than that observed for ACE (100% of degradation after 180 s) due to CIP has amine groups that are more reactive toward RCS than phenol moiety on ACE. Moreover, the system removed 100% of the antimicrobial activity associated with CIP, indicating a positive environmental effect of the treatment.
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Affiliation(s)
- Ruth R Flores-Terreros
- Research Group in Environmental Quality and Bioprocesses (GICAB), Faculty of Chemical Engineering and Textile, Universidad Nacional de Ingeniería UNI, Av. Túpac Amaru No 210, Rímac, Lima, Peru
| | - Efraím A Serna-Galvis
- Grupo de Investigación en Remediación Ambiental y Biocatálisis (GIRAB), Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia
| | - Javier Navarro-Laboulais
- Department of Chemical and Nuclear Engineering, Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain
| | - Ricardo A Torres-Palma
- Grupo de Investigación en Remediación Ambiental y Biocatálisis (GIRAB), Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia.
| | - Jessica I Nieto-Juárez
- Research Group in Environmental Quality and Bioprocesses (GICAB), Faculty of Chemical Engineering and Textile, Universidad Nacional de Ingeniería UNI, Av. Túpac Amaru No 210, Rímac, Lima, Peru.
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Liu R, Wang L, Wu R, Liu S, Korshin GV, Han W. Active-chlorine-mediated oxidation of 5-fluorouracil on a hierarchically ordered macroporous RuO 2 electrode. CHEMOSPHERE 2022; 301:134728. [PMID: 35487356 DOI: 10.1016/j.chemosphere.2022.134728] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 04/19/2022] [Accepted: 04/22/2022] [Indexed: 06/14/2023]
Abstract
A hierarchically ordered macroporous RuO2 electrode (HOM-RuO2) was fabricated to enhance in situ active chlorine production in an electrochemical system intended for treatment of pharmaceutical active compounds (PhACs). The unique structure of HOM-RuO2 resulted in a decrease of the chlorine evolution potential, a large electro-active area available for in situ conversion of Cl- to active chlorine, and hence improved the active chlorine production by 40%. 5-Fluorouracil (5-FU) was used as a target pollutant to explore the performance of the HOM-RuO2 for PhACs degradation based on the in situ generated active chlorine. The results showed that the reaction rate of active-chlorine-mediated oxidation of 5-FU produced using the HOM-RuO2 was 18.4 times higher than that in the case of hydroxyl radicals (OH)-initiated oxidation using a PbO2 electrode at 30 mA cm-2. The effects of current density and initial solution pH on the 5-FU removal were investigated. The mechanism of 5-FU degradation was proposed taking into accounts both active chlorine production, and change of the speciation of 5-FU caused by pH variations. The dominant degradation products observed for the degradation of 5-FU using the HOM-RuO2 were lactic acid, propanol, acetic acid, urea and other small molecules, but no chlorinated products were detected. These study demonstrates the promise of the HOM-RuO2-based electrochemical systems for the active-chlorine-mediated treatment of recalcitrant pharmaceuticals found in wastewater.
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Affiliation(s)
- Ruiqian Liu
- Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, 210018, China
| | - Lu Wang
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Ruiqin Wu
- Beijing Xinzhiheng Technology HoldIngsCO., LTD, Bejing, 10080, China
| | - Siqi Liu
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China; Department of Civil and Environmental Engineering, University of Washington, Seattle, WA, 98195-2700, United States.
| | - Gregory V Korshin
- Department of Civil and Environmental Engineering, University of Washington, Seattle, WA, 98195-2700, United States
| | - Weiqing Han
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China.
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Palma-Goyes RE, Sosa-Rodríguez FS, Rivera FF, Vazquez-Arenas J. Modeling the sulfamethoxazole degradation by active chlorine in a flow electrochemical reactor. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:42201-42214. [PMID: 34467494 DOI: 10.1007/s11356-021-16154-w] [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: 02/04/2021] [Accepted: 08/20/2021] [Indexed: 06/13/2023]
Abstract
The aim of this study is to propose a continuous physicochemical model accounting for the active chlorine production used to degrade recalcitrant sulfamethoxazole (SMX) in an electrochemical flow reactor. The computational model describes the fluid mechanics and mass transfer occurring in the re/actor, along with the electrode kinetics of hydrogen evolution reaction arising on a stainless steel cathode, and the chloride oxidation on a DSA. Specifically, the anodic contributions assume the heterogeneous nature of the adsorbed chlorine species formed on this surface, which are a model requirement to correctly define the experimental reactor performance and degradation efficiency of the contaminant. The experimental validation conducted at different applied current densities, volumetric flows, and chloride concentrations is adequately explained by the model, thus evidencing some of the phenomena controlling the electrocatalytic chlorine production for environmental applications. The best conditions to eliminate the SMX are proposed based on the theoretical analysis of the current efficiency calculated with the model, and experimentally confirmed. The use of the Ti/RuO2-ZrO2-Sb2O3 anode at the bench scale improves the SMX removal by using electro-generated chlorine species adsorbed on its surface, which remarkably increases the oxidation potential of the system along with chlorine desorbed from the electrode. This is a technological innovation concerning other mediated oxidation methods entirely using oxidants in solution.
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Affiliation(s)
- Ricardo E Palma-Goyes
- Departamento de Química, Universidad del Valle, Santiago de Cali, Calle 13 # 100-00, CP 760032, Colombia
| | - Fabiola S Sosa-Rodríguez
- Research Area of Growth and Environment, Metropolitan Autonomous University, Azcapotzalco (UAM-A), Av. San Pablo 180, 02200, Mexico City, Mexico
| | - Fernando F Rivera
- CONACYT - Centro de Investigación y Desarrollo Tecnológico en Electroquímica, Parque Tecnológico Querétaro s/n Sanfandila, Pedro Escobedo, 76703, Querétaro, Mexico.
| | - Jorge Vazquez-Arenas
- CONACYT-Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco No 186, 09340, Mexico City, Mexico.
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Wang W, Wang K, Hao W, Zhang T, Liu Y, Yu L, Li W. Preparation of Ti-based Yb-doped SnO2–RuO2 electrode and electrochemical oxidation treatment of coking wastewater. J RARE EARTH 2022. [DOI: 10.1016/j.jre.2021.04.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Luna-Trujillo M, Palma-Goyes R, Vazquez-Arenas J, Manzo-Robledo A. Formation of active chlorine species involving the higher oxide MOx+1 on active Ti/RuO2-IrO2 anodes: A DEMS analysis. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114661] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Improving biodegradability of clopyralid wastes by photoelectrolysis: The role of the anode material. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114084] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Palma-Goyes RE, Rivera FF, Vazquez-Arenas J. Heterogeneous Model To Distinguish the Activity of Electrogenerated Chlorine Species from Soluble Chlorine in an Electrochemical Reactor. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b05185] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Ricardo E. Palma-Goyes
- Grupo CATALAD, Instituto de Química, Universidad de Antioquia, UdeA, Calle 70 No. 52-21, Medellín 050010, Colombia
| | - Fernando F. Rivera
- CONACYT—Centro de Investigación y Desarrollo Tecnológico en Electroquímica, Parque Tecnológico Querétaro s/n Sanfandila, Pedro Escobedo 76703, Querétaro, Mexico
| | - Jorge Vazquez-Arenas
- CONACYT—Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco No 186, CDMX 09340, Mexico
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Ji P, Mao Z, Wang Z, Xue X, Zhang Y, Lv J, Shi X. Improved Surface-Enhanced Raman Scattering Properties of ZrO 2 Nanoparticles by Zn Doping. NANOMATERIALS 2019; 9:nano9070983. [PMID: 31284623 PMCID: PMC6669659 DOI: 10.3390/nano9070983] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 06/26/2019] [Accepted: 07/03/2019] [Indexed: 01/02/2023]
Abstract
In this study, ZrO2 and Zn–ZrO2 nanoparticles (NPs) with a series of Zn ion doping amounts were synthesized by the sol-gel process and utilized as substrates for surface-enhanced Raman scattering (SERS). After absorbing the probing molecule 4–mercaptobenzoic acid, the SERS signal intensities of Zn–ZrO2 NPs were all greater than that of the pure ZrO2. The 1% Zn doping concentration ZrO2 NPs exhibited the highest SERS enhancement, with an enhancement factor (EF) value of up to 104. X-ray diffraction, X-ray photoelectron spectroscopy, Ultraviolet (UV) photoelectron spectrometer, UV–vis spectroscopy, Transmission Electron Microscope (TEM), and Raman spectroscopy were used to characterize the properties of Zn–ZrO2 NPs and explore the mechanisms behind the SERS phenomenon. The charge transfer (CT) process is considered to be responsible for the SERS performance of 4–MBA adsorbed on Zn–ZrO2. The results of this study demonstrate that an appropriate doping ratio of Zn ions can promote the charge transfer process between ZrO2 NPs and probe molecules and significantly improve the SERS properties of ZrO2 substrates.
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Affiliation(s)
- Peng Ji
- College of Chemical Engineering, Changchun University of Technology, Changchun 130012, China
- School of Chemistry and Life Science, Changchun University of Technology, Changchun 130012, China
| | - Zhu Mao
- School of Chemistry and Life Science, Changchun University of Technology, Changchun 130012, China
| | - Zhe Wang
- College of Chemical Engineering, Changchun University of Technology, Changchun 130012, China
| | - Xiangxin Xue
- Key Laboratory of Preparation and Applications of Environmental Friendly Materials, Jilin Normal University, Changchun 130103, China
| | - Yu Zhang
- College of Chemical Engineering, Changchun University of Technology, Changchun 130012, China
| | - Jiaao Lv
- College of Chemical Engineering, Changchun University of Technology, Changchun 130012, China
| | - Xiumin Shi
- College of Chemical Engineering, Changchun University of Technology, Changchun 130012, China.
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Perea LA, Palma-Goyes RE, Vazquez-Arenas J, Romero-Ibarra I, Ostos C, Torres-Palma RA. Efficient cephalexin degradation using active chlorine produced on ruthenium and iridium oxide anodes: Role of bath composition, analysis of degradation pathways and degradation extent. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 648:377-387. [PMID: 30121037 DOI: 10.1016/j.scitotenv.2018.08.148] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 08/01/2018] [Accepted: 08/10/2018] [Indexed: 06/08/2023]
Abstract
The elimination of cephalexin (CPX) using electro-generated Cl2-active on Ti/RuO2-IrO2 anode was assessed in different effluents: deionized water (DW), municipal wastewater (MWW) and urine. Single Ti/RuO2 and Ti/IrO2 catalysts were prepared to compare their morphologies and electrochemical behavior against the binary DSA. XRD and profile refinement suggest that Ti/RuO2-IrO2 forms a solid solution, where RuO2 and IrO2 growths are oriented by the TiO2 substrate through substitution of Ir by Ru atoms within its rutile-type structure. SEM reveals mud-cracked structures with flat areas for all catalysts, while EDS analysis indicates atomic ratios in the range of the oxide stoichiometries in the nominal concentrations used during synthesis. A considerably higher CPX degradation is achieved in the presence of NaCl than in Na2SO4 or Na3PO4 media due to the active chlorine generation. A faster CPX degradation is reached when the current density is increased or the pH value is lowered. This last behavior may be ascribed to an acid-catalyzed reaction between HClO and CPX. Degradation rates of 22.5, 3.96, and 0.576 μmol L-1 min-1 were observed for DW, MWW and urine, respectively. The lower efficiency measured in these last two effluents was related to the presence of organic matter and urea in the matrix. A degradation pathway is proposed based on HPLC-DAD and HPLC-MS analysis, indicating the fast formation (5 min) of CPX-(S)-sulfoxide and CPX-(R)-sulfoxide, generated due the Cl2-active attack at the CPX thioether. Furthermore, antimicrobial activity elimination of the treated solution is reached once CPX, and the initial by-products are considerably eliminated. Finally, even if only 16% of initial TOC is removed, BOD5 tests prove the ability of electro-generated Cl2-active to transform the antibiotic into biodegradable compounds. A similar strategy can be used for the abatement of other recalcitrant compounds contained in real water matrices such as urine and municipal wastewaters.
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Affiliation(s)
- Lic A Perea
- Grupo de Investigación en Remediación Ambiental y Biocatálisis (GIRAB), Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia
| | - Ricardo E Palma-Goyes
- Grupo de Investigación en Remediación Ambiental y Biocatálisis (GIRAB), Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia; Unidad Profesional Interdisciplinaria en Ingeniería y Tecnologías Avanzadas-Instituto Politécnico Nacional, Av. IPN No. 2580, Gustavo A. Madero, C.P. 07340 Ciudad de México, Mexico.
| | - Jorge Vazquez-Arenas
- Centro Mexicano para la Producción más Limpia, Instituto Politécnico Nacional, Avenida Acueducto s/n, Col. La Laguna Ticomán, 07340 Ciudad de México, Mexico
| | - Issis Romero-Ibarra
- Unidad Profesional Interdisciplinaria en Ingeniería y Tecnologías Avanzadas-Instituto Politécnico Nacional, Av. IPN No. 2580, Gustavo A. Madero, C.P. 07340 Ciudad de México, Mexico
| | - Carlos Ostos
- Grupo CATALAD, Instituto de Química, Universidad de Antioquia, Calle 70 No. 52-21, Medellín, Colombia
| | - Ricardo A Torres-Palma
- Grupo de Investigación en Remediación Ambiental y Biocatálisis (GIRAB), Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia.
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Palma‐Goyes RE, Vazquez‐Arenas J, Romero‐Ibarra IC, Ostos C. Microwave‐Assisted Solvothermal One‐Pot Synthesis of RuO
2
Nanoparticles: First Insights of Its Activity Towards Oxygen and Chlorine Evolution Reactions. ChemistrySelect 2018. [DOI: 10.1002/slct.201802695] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ricardo E. Palma‐Goyes
- Grupo CATALADInstituto de QuímicaUniversidad de Antioquia, UdeA, Calle 70 No. 52–21 Medellín Colombia
| | - Jorge Vazquez‐Arenas
- Conacyt-Departamento de QuímicaUniversidad Autónoma Metropolitana-Iztapalapa Av. San Rafael Atlixco No 186, C.P 09340, Ciudad de México México
| | - Issis C. Romero‐Ibarra
- Unidad Profesional Interdisciplinaria en Ingeniería y Tecnologías Avanzadas-Instituto Politécnico Nacional. Av. IPN No. 2580, Gustavo A. Madero C.P. 07340, Ciudad de México México
| | - Carlos Ostos
- Grupo CATALADInstituto de QuímicaUniversidad de Antioquia, UdeA, Calle 70 No. 52–21 Medellín Colombia
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