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  1. Article: Improved Operation of Chloralkaline Reversible Cells with Mixed Metal Oxide Electrodes Made Using Microwaves.

    Ribeiro, Jamylle Y C / Santos, Gessica O S / Dória, Aline R / Requena, Iñaki / Lanza, Marcos R V / Salazar-Banda, Giancarlo R / Eguiluz, Katlin I B / Lobato, Justo / Rodrigo, Manuel A

    Nanomaterials (Basel, Switzerland)

    2024  Volume 14, Issue 8

    Abstract: This study focuses on the synthesis of mixed metal oxide anodes (MMOs) with the composition Ti/ ... ...

    Abstract This study focuses on the synthesis of mixed metal oxide anodes (MMOs) with the composition Ti/RuO
    Language English
    Publishing date 2024-04-17
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2662255-5
    ISSN 2079-4991
    ISSN 2079-4991
    DOI 10.3390/nano14080693
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  2. Article ; Online: Reducing citrus effluent toxicity: Biological-electrochemical treatment with diamond anode.

    Vilar, Débora S / Correia da Silva, Hugo H / Dória, Aline R / Torres, Nádia H / Vallim, José H / Salgado de Castro, Vera L S / Américo-Pinheiro, Juliana Heloisa Pinê / Salazar-Banda, Giancarlo R / Barrios Eguiluz, Katlin I / Ferreira, Luiz Fernando R

    Environmental pollution (Barking, Essex : 1987)

    2024  Volume 346, Page(s) 123688

    Abstract: One challenge of the citrus industry is the treatment and disposal of its effluents due to their high toxicity, substantial organic load, and consequent resistance to conventional biotechnological processes. This study introduces a novel approach, using ... ...

    Abstract One challenge of the citrus industry is the treatment and disposal of its effluents due to their high toxicity, substantial organic load, and consequent resistance to conventional biotechnological processes. This study introduces a novel approach, using electrochemical oxidation with a boron-doped diamond anode to efficiently remove organic compounds from biodegraded pulp wash (treated using the fungus Pleurotus sajor-caju.) The findings reveal that employing a current density of 20 mA cm
    MeSH term(s) Diamond/chemistry ; Water Pollutants, Chemical/analysis ; Electrolysis/methods ; Organic Chemicals ; Electrodes ; Oxidation-Reduction
    Chemical Substances Diamond (7782-40-3) ; Water Pollutants, Chemical ; Organic Chemicals
    Language English
    Publishing date 2024-02-29
    Publishing country England
    Document type Journal Article
    ZDB-ID 280652-6
    ISSN 1873-6424 ; 0013-9327 ; 0269-7491
    ISSN (online) 1873-6424
    ISSN 0013-9327 ; 0269-7491
    DOI 10.1016/j.envpol.2024.123688
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 2599: Show issues Location:
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  3. Article: Toward efficient electrocatalytic degradation of iohexol using active anodes: A laser-made versus commercial anodes

    Bomfim, Sthefany A. / Dória, Aline R. / Gonzaga, Isabelle M.D. / Oliveira, Rhayza Victoria Matos / Romão, Luciane P.C. / Salazar-Banda, Giancarlo R. / Ferreira, Luiz F.R. / Eguiluz, Katlin I.B.

    Chemosphere. 2022 July, v. 299

    2022  

    Abstract: The X-ray iodinated contrast medium iohexol is frequently detected in aquatic environments due to its high persistence and the inefficiency of its degradation by conventional wastewater treatments. Hence, the challenge faced in this study is the ... ...

    Abstract The X-ray iodinated contrast medium iohexol is frequently detected in aquatic environments due to its high persistence and the inefficiency of its degradation by conventional wastewater treatments. Hence, the challenge faced in this study is the development of an alternative electrochemical treatment using active anodes. We investigate the oxidation of iohexol (16.42 mg L⁻¹) using different operating conditions, focusing on the role of different mixed metal oxide anodes in the treatment efficiency. The electrocatalytic efficiency of the Ti/RuO₂–TiO₂ anode prepared using a CO₂ laser heating and an ionic liquid is compared with Ti/RuO₂–TiO₂–IrO₂ and Ti/IrO₂–Ta₂O₅ commercial anodes. The hypochlorite ions generated by the anodes are also analyzed. The effect of the electrolyte composition (NaCl, Na₂SO₄, and NaClO₄) and current density (15, 30, and 50 mA cm⁻²) on the iohexol degradation is also studied. The Ti/RuO₂–TiO₂ laser-made anode is more efficient than the commercial anodes. After optimizing experimental parameters, this anode removes 95.5% of iohexol in 60 min and displays the highest kinetic rate (0.059 min⁻¹) with the lowest energy consumption per order (0.21 kWh m⁻³order⁻¹), using NaCl solution as the electrolyte and applying 15 mA cm⁻². Additionally, iohexol-intensified groundwater was used to compare the efficiency of anodes. The Ti/RuO₂–TiO₂ is also more efficient in removing the organic charge from the real water matrix (21.7% TOC) than the commercial anodes. Notably, the iohexol removal achieved is higher than all electrochemical treatments already reported using state-of-the-art non-active anodes in lower electrolysis time. Therefore, data from this study indicate that the electrochemical degradation of iohexol using the Ti/RuO₂–TiO₂ anode is efficient and has excellent cost-effectiveness; thus, it is a promising approach in the degradation of iohexol from wastewater. Furthermore, the Ti/RuO₂–TiO₂ active anode is competitive and can be an excellent option for treating effluents contaminated with recalcitrant organic compounds such as iohexol.
    Keywords X-radiation ; anodes ; carbon dioxide ; cost effectiveness ; electrochemistry ; electrolysis ; energy ; groundwater ; heat ; hypochlorites ; ionic liquids ; oxidation ; wastewater
    Language English
    Dates of publication 2022-07
    Publishing place Elsevier Ltd
    Document type 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.2022.134350
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 2540: Show issues Location:
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  4. Article ; Online: Toward efficient electrocatalytic degradation of iohexol using active anodes: A laser-made versus commercial anodes.

    Bomfim, Sthefany A / Dória, Aline R / Gonzaga, Isabelle M D / Oliveira, Rhayza Victoria Matos / Romão, Luciane P C / Salazar-Banda, Giancarlo R / Ferreira, Luiz F R / Eguiluz, Katlin I B

    Chemosphere

    2022  Volume 299, Page(s) 134350

    Abstract: The X-ray iodinated contrast medium iohexol is frequently detected in aquatic environments due to its high persistence and the inefficiency of its degradation by conventional wastewater treatments. Hence, the challenge faced in this study is the ... ...

    Abstract The X-ray iodinated contrast medium iohexol is frequently detected in aquatic environments due to its high persistence and the inefficiency of its degradation by conventional wastewater treatments. Hence, the challenge faced in this study is the development of an alternative electrochemical treatment using active anodes. We investigate the oxidation of iohexol (16.42 mg L
    MeSH term(s) Electrodes ; Iohexol ; Lasers ; Oxidation-Reduction ; Sodium Chloride ; Titanium/chemistry ; Waste Water ; Water Pollutants, Chemical/analysis
    Chemical Substances Waste Water ; Water Pollutants, Chemical ; Iohexol (4419T9MX03) ; Sodium Chloride (451W47IQ8X) ; Titanium (D1JT611TNE)
    Language English
    Publishing date 2022-03-21
    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.2022.134350
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    In stock of ZB MED Cologne/Königswinter

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  5. Article: Enhancement of wastewater treatment using novel laser-made Ti/SnO2–Sb anodes with improved electrocatalytic properties

    Santos, Géssica O.S / Dória, Aline R / Vasconcelos, Vanessa M / Sáez, Cristina / Rodrigo, Manuel A / Eguiluz, Katlin I.B / Salazar-Banda, Giancarlo R

    Chemosphere. 2020 Nov., v. 259

    2020  

    Abstract: In this study, a novel Ti/SnO₂–Sb anode, improved using a laser heating manufacturing procedure, was applied in wastewater treatment. For comparison purposes, similar anodes were manufactured using the conventional furnace heating procedure. ... ...

    Abstract In this study, a novel Ti/SnO₂–Sb anode, improved using a laser heating manufacturing procedure, was applied in wastewater treatment. For comparison purposes, similar anodes were manufactured using the conventional furnace heating procedure. Electrochemical characterizations in the background electrolyte confirmed that the novel material has improved electric conductivity, as compared to the furnace-made one and, hence, it may lead to much lower operating costs in real applications. The electrocatalytic properties of the novel anode in comparison with the conventional were evaluated using a standard and well-known reaction: the phenol oxidation. Different operational conditions were evaluated. Concentrations of phenol were monitored by HPLC and analysis of organic matter by TOC analyzer. The best condition of phenol removal was associated with a relatively low energy consumption of 0.80 kWh (gTOC)⁻¹ and specific electrical energy consumption of 0.81 kWh m⁻³ order⁻¹. Interestingly, the phenol is not completely removed after 60 min of treatment using the furnace-made anode under the same operating conditions in which was fully depleted with the new electrode. Moreover, chlorinated by-products remained in the final solution with the conventional electrode and were exhausted with the novel one. Finally, after an extensive comparison with literature about the oxidation of phenol, the Ti/SnO₂–Sb produced by laser-manufacturing procedure presented the best phenol removal as compared with both non-active and active anodes.
    Keywords anodes ; byproducts ; electric power ; electrical conductivity ; electrochemistry ; electrolytes ; energy ; lead ; literature ; manufacturing ; operating costs ; organic matter ; oxidation ; phenol ; wastewater treatment
    Language English
    Dates of publication 2020-11
    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.2020.127475
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    In stock of ZB MED Cologne/Königswinter

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  6. Article ; Online: Improved 4-nitrophenol removal at Ti/RuO

    Dória, Aline R / Santos, Géssica O S / Pelegrinelli, Mariane M S / Silva, Deyvid C / de Matos, Danielle B / Cavalcanti, Eliane Bezerra / Silva, Ronaldo S / Salazar-Banda, Giancarlo R / Eguiluz, Katlin I B

    Environmental science and pollution research international

    2020  Volume 28, Issue 19, Page(s) 23634–23646

    Abstract: In this study, binary and ternary mixed metal oxide anodes of Ti/ ... ...

    Abstract In this study, binary and ternary mixed metal oxide anodes of Ti/RuO
    MeSH term(s) Electrodes ; Lasers ; Nitrophenols ; Oxidation-Reduction ; Titanium ; Water Pollutants, Chemical/analysis
    Chemical Substances Nitrophenols ; Water Pollutants, Chemical ; titanium dioxide (15FIX9V2JP) ; Titanium (D1JT611TNE) ; 4-nitrophenol (Y92ZL45L4R)
    Language English
    Publishing date 2020-08-18
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-020-10451-6
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    Z 5915: Show issues

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