Electrochemical degradation of norfloxacin using BDD and new Sb-doped SnO2 ceramic anodes in an electrochemical reactor in the presence and absence of a cation-exchange membrane
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Other documents of the author: Mora Gómez, Julia; Ortega, Emma; Mestre Beltrán, Sergio; Pérez-Herranz, Valentín; García Gabaldón, Montserrat
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comunitat-uji-handle2:10234/7033
comunitat-uji-handle3:10234/8618
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Title
Electrochemical degradation of norfloxacin using BDD and new Sb-doped SnO2 ceramic anodes in an electrochemical reactor in the presence and absence of a cation-exchange membraneAuthor (s)
Date
2019Publisher
ElsevierISSN
1383-5866; 1873-3794Bibliographic citation
Mora-Gomez, J., et al. "Electrochemical degradation of norfloxacin using BDD and new Sb-doped SnO2 ceramic anodes in an electrochemical reactor in the presence and absence of a cation-exchange membrane." Separation and Purification Technology, 2019, vol. 208, p. 68-75Type
info:eu-repo/semantics/articlePublisher version
https://www.sciencedirect.com/science/article/pii/S1383586618305392Version
info:eu-repo/semantics/submittedVersionSubject
Abstract
Electrochemical oxidation of Norfloxacin (NOR) in sodium sulphate media has been
comparatively studied in an undivided and in a divided electrolytic cell both containing
either a boron doped diamond (BDD) or a novel ... [+]
Electrochemical oxidation of Norfloxacin (NOR) in sodium sulphate media has been
comparatively studied in an undivided and in a divided electrolytic cell both containing
either a boron doped diamond (BDD) or a novel Sb-doped SnO2 ceramic anode under
galvanostatic operation. The electro-oxidation was found to occur with first order
kinetics mainly when using both anodes. The results showed the great oxidizing power
of BDD in relation to the ceramic anode to convert NOR and all the intermediate
accumulated into CO2. In the case of the BDD, although a 92 % of TOC abatement was
achieved, the complete mineralization was not possible probably due to the carboxylic
acids still present in solution. On the contrary, for the ceramic electrode, which
presented a maximum value of TOC removal of about 63 %, the total mineralization of
the aromatic oxidation intermediates was not reached under the experimental
conditions.
The use of a membrane divided cell showed positive aspects in terms of molecule
degradation, degree of mineralization and current efficiency since prevents the
intermediate products formed during the NOR oxidation process from being reduced
on the cathode. [-]
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Separation and Purification Technology, 2019, vol. 208, p. 68-75Rights
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info:eu-repo/semantics/openAccess
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