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Electro-Catalytic Degradation of Nitenpyram Wastewater Using C/PTFE Gas Diffusion Electrode

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Abstract:

Oxidation of nitenpyram in aqueous media by electro-Fenton process using carbon/polytetrafluoroethylene (C/PTFE) O2-fed cathode has been studied in this article. ABO3 perovskite was used in electrode as catalyst of improving Fenton reaction efficiency. And the parameters for nitenpyram degradation with the electrode were determined by Central Composite Design-Response Surface Methodology. Current intensity 0.35A and pH 3.34 provided the optimum catalytic degradation. Furthermore, the main degradation intermediates formed during electro-Fenton oxidation treatment were studied with liquid chromatography and mass spectroscopy (LC-MS) method. The main aromatic intermediates of electro-Fenton reaction were allowed to compose a complete mineralization pathway.

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Periodical:

Advanced Materials Research (Volume 699)

Pages:

747-752

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.699.747

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Online since:

May 2013

Authors:

Shan Ping Li, Xiang Ru Ma, Xiao Hong Cao, Yan Wen Dong

Keywords:

Central Composite Design-Response Surface Methodology, Electro-Catalysis, Gas Diffusion Electrodes Nitenpyram

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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