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  1. Article ; Online: Efficient degradation of chloroquine drug by electro-Fenton oxidation: Effects of operating conditions and degradation mechanism.

    Midassi, Sondos / Bedoui, Ahmed / Bensalah, Nasr

    Chemosphere

    2020  Volume 260, Page(s) 127558

    Abstract: In this work, the degradation of chloroquine (CLQ), an antiviral and antimalarial drug, using electro-Fenton oxidation was investigated. Due to the importance of hydrogen peroxide ( ... ...

    Abstract In this work, the degradation of chloroquine (CLQ), an antiviral and antimalarial drug, using electro-Fenton oxidation was investigated. Due to the importance of hydrogen peroxide (H
    MeSH term(s) Carbon/isolation & purification ; Chloroquine/chemistry ; Electrodes ; Hydrogen Peroxide/chemistry ; Hydroxyl Radical/chemistry ; Kinetics ; Oxidation-Reduction ; Sulfates/chemistry ; Wastewater/chemistry ; Water Pollutants, Chemical/chemistry ; Water Purification/methods
    Chemical Substances Sulfates ; Waste Water ; Water Pollutants, Chemical ; Hydroxyl Radical (3352-57-6) ; Carbon (7440-44-0) ; Chloroquine (886U3H6UFF) ; Hydrogen Peroxide (BBX060AN9V)
    Keywords covid19
    Language English
    Publishing date 2020-07-10
    Publishing country England
    Document type Journal Article
    ZDB-ID 120089-6
    ISSN 1879-1298 ; 0045-6535 ; 0366-7111
    ISSN (online) 1879-1298
    ISSN 0045-6535 ; 0366-7111
    DOI 10.1016/j.chemosphere.2020.127558
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 2540: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
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    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

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  2. Article: Efficient degradation of chloroquine drug by electro-Fenton oxidation: Effects of operating conditions and degradation mechanism

    Midassi, Sondos / Bedoui, Ahmed / Bensalah, Nasr

    Chemosphere. 2020 Dec., v. 260

    2020  

    Abstract: In this work, the degradation of chloroquine (CLQ), an antiviral and antimalarial drug, using electro-Fenton oxidation was investigated. Due to the importance of hydrogen peroxide (H₂O₂) generation during electro-Fenton oxidation, effects of pH, current ... ...

    Abstract In this work, the degradation of chloroquine (CLQ), an antiviral and antimalarial drug, using electro-Fenton oxidation was investigated. Due to the importance of hydrogen peroxide (H₂O₂) generation during electro-Fenton oxidation, effects of pH, current density, molecular oxygen (O₂) flow rate, and anode material on H₂O₂ generation were evaluated. H₂O₂ generation was enhanced by increasing the current density up to 60 mA/cm² and the O₂ flow rate up to 80 mL/min at pH 3.0 and using carbon felt cathode and boron-doped diamond (BDD) anode. Electro-Fenton-BDD oxidation achieved the total CLQ depletion and 92% total organic carbon (TOC) removal. Electro-Fenton-BDD oxidation was more effective than electro-Fenton-Pt and anodic oxidation using Pt and BDD anodes. The efficiency of CLQ depletion by electro-Fenton-BDD oxidation raises by increasing the current density and Fe²⁺ dose; however it drops with the increase of pH and CLQ concentration. CLQ depletion follows a pseudo-first order kinetics in all the experiments. The identification of CLQ degradation intermediates by chromatography methods confirms the formation of 7-chloro-4-quinolinamine, oxamic, and oxalic acids. Quantitative amounts of chlorides, nitrates, and ammonium ions are released during electro-Fenton oxidation of CLQ. The high efficiency of electro-Fenton oxidation derives from the generation of hydroxyl radicals from the catalytic decomposition of H₂O₂ by Fe²⁺ in solution, and the electrogeneration of hydroxyl and sulfates radicals and other strong oxidants (persulfates) from the oxidation of the electrolyte at the surface BDD anode. Electro-Fenton oxidation has the potential to be an alternative method for treating wastewaters contaminated with CLQ and its derivatives.
    Keywords ammonium ; anodes ; cathodes ; chlorides ; chloroquine ; chromatography ; degradation ; density ; dosage ; flow ; free radicals ; hydrogen peroxide ; hydroxyl radicals ; kinetics ; nitrates ; oxidants ; oxidation ; oxygen ; pH ; sulfates ; total organic carbon ; wastewater
    Language English
    Dates of publication 2020-12
    Publishing place Elsevier Ltd
    Document type Article
    Note NAL-light
    ZDB-ID 120089-6
    ISSN 1879-1298 ; 0045-6535 ; 0366-7111
    ISSN (online) 1879-1298
    ISSN 0045-6535 ; 0366-7111
    DOI 10.1016/j.chemosphere.2020.127558
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 2540: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

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  3. Article: Degradation of hydroxychloroquine by electrochemical advanced oxidation processes.

    Bensalah, Nasr / Midassi, Sondos / Ahmad, Mohammad I / Bedoui, Ahmed

    Chemical engineering journal (Lausanne, Switzerland : 1996)

    2020  Volume 402, Page(s) 126279

    Abstract: In this work, the degradation of hydroxychloroquine (HCQ) drug in aqueous solution by electrochemical advanced oxidation processes including electrochemical oxidation (EO) using boron doped diamond (BDD) and its combination with UV irradiation (photo- ... ...

    Abstract In this work, the degradation of hydroxychloroquine (HCQ) drug in aqueous solution by electrochemical advanced oxidation processes including electrochemical oxidation (EO) using boron doped diamond (BDD) and its combination with UV irradiation (photo-assisted electrochemical oxidation, PEO) and sonication (sono-assisted electrochemical oxidation, SEO) was investigated. EO using BDD anode achieved the complete depletion of HCQ from aqueous solutions in regardless of HCQ concentration, current density, and initial pH value. The decay of HCQ was more rapid than total organic carbon (TOC) indicating that the degradation of HCQ by EO using BDD anode involves successive steps leading to the formation of organic intermediates that end to mineralize. Furthermore, the results demonstrated the release chloride (Cl
    Keywords covid19
    Language English
    Publishing date 2020-07-16
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2012137-4
    ISSN 1873-3212 ; 1385-8947
    ISSN (online) 1873-3212
    ISSN 1385-8947
    DOI 10.1016/j.cej.2020.126279
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Efficient degradation of chloroquine drug by electro-Fenton oxidation: Effects of operating conditions and degradation mechanism

    Midassi, Sondos / Bedoui, Ahmed / Bensalah, Nasr

    Chemosphere

    Abstract: In this work, the degradation of chloroquine (CLQ), an antiviral and antimalarial drug, using electro-Fenton oxidation was investigated. Due to the importance of hydrogen peroxide (H2O2) generation during electro-Fenton oxidation, effects of pH, current ... ...

    Abstract In this work, the degradation of chloroquine (CLQ), an antiviral and antimalarial drug, using electro-Fenton oxidation was investigated. Due to the importance of hydrogen peroxide (H2O2) generation during electro-Fenton oxidation, effects of pH, current density, molecular oxygen (O2) flow rate, and anode material on H2O2 generation were evaluated. H2O2 generation was enhanced by increasing the current density up to 60 mA/cm2 and the O2 flow rate up to 80 mL/min at pH 3.0 and using carbon felt cathode and boron-doped diamond (BDD) anode. Electro-Fenton-BDD oxidation achieved the total CLQ depletion and 92% total organic carbon (TOC) removal. Electro-Fenton-BDD oxidation was more effective than electro-Fenton-Pt and anodic oxidation using Pt and BDD anodes. The efficiency of CLQ depletion by electro-Fenton-BDD oxidation raises by increasing the current density and Fe2+ dose; however it drops with the increase of pH and CLQ concentration. CLQ depletion follows a pseudo-first order kinetics in all the experiments. The identification of CLQ degradation intermediates by chromatography methods confirms the formation of 7-chloro-4-quinolinamine, oxamic, and oxalic acids. Quantitative amounts of chlorides, nitrates, and ammonium ions are released during electro-Fenton oxidation of CLQ. The high efficiency of electro-Fenton oxidation derives from the generation of hydroxyl radicals from the catalytic decomposition of H2O2 by Fe2+ in solution, and the electrogeneration of hydroxyl and sulfates radicals and other strong oxidants (persulfates) from the oxidation of the electrolyte at the surface BDD anode. Electro-Fenton oxidation has the potential to be an alternative method for treating wastewaters contaminated with CLQ and its derivatives.
    Keywords covid19
    Publisher WHO
    Document type Article
    Note WHO #Covidence: #639074
    Database COVID19

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  5. Article: Degradation of hydroxychloroquine by electrochemical advanced oxidation processes

    Bensalah, Nasr / Midassi, Sondos / Ahmad, Mohammad I. / Bedoui, Ahmed

    Chemical Engineering Journal

    Abstract: In this work, the degradation of hydroxychloroquine (HCQ) drug in aqueous solution by electrochemical advanced oxidation processes including electrochemical oxidation (EO) using boron doped diamond (BDD) and its combination with UV irradiation (photo- ... ...

    Abstract In this work, the degradation of hydroxychloroquine (HCQ) drug in aqueous solution by electrochemical advanced oxidation processes including electrochemical oxidation (EO) using boron doped diamond (BDD) and its combination with UV irradiation (photo-assisted electrochemical oxidation, PEO) and sonication (sono-assisted electrochemical oxidation, SEO) was investigated EO using BDD anode achieved the complete depletion of HCQ from aqueous solutions in regardless of HCQ concentration, current density, and initial pH value The decay of HCQ was more rapid than total organic carbon (TOC) indicating that the degradation of HCQ by EO using BDD anode involves successive steps leading to the formation of organic intermediates that end to mineralize Furthermore, the results demonstrated the release chloride (Cl−) ions at the first stages of HCQ degradation In addition, the organic nitrogen was converted mainly into NO3− and NH4+ and small amounts of volatile nitrogen species (NH3 and NOx) Chromatography analysis confirmed the formation of 7-chloro-4-quinolinamine (CQLA), oxamic and oxalic acids as intermediates of HCQ degradation by EO using BDD anode The combination of EO with UV irradiation or sonication enhances the kinetics and the efficacy of HCQ oxidation PEO requires the lowest energy consumption (EC) of 63 kWh/m3 showing its cost-effectiveness PEO has the potential to be an excellent alternative method for the treatment of wastewaters contaminated with HCQ drug and its derivatives
    Keywords covid19
    Publisher WHO
    Document type Article
    Note WHO #Covidence: #651709
    Database COVID19

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

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