Preparation technology of nano-Fe3O4-V2O5-Au-doped poly-naphthylamine film modified netted glassy carbon electrode

Abstract

The invention discloses a preparation technology of a nano-Fe3O4-V2O5-Au-doped poly-naphthylamine film modified netted glassy carbon electrode. The technology comprises dissolving FeCl3 and NaAc in glycol, drying to obtain particles A; mixing cetyl trimethyl ammonium bromide, n-octane and n-butanol, dividing into two parts, adding ammonium metavanadate and deionized water into one part, stirring to obtain a microemulsion A, adding dilute sulfuric acid into the other part, stirring to obtain a microemulsion B; mixing the microemulsion A and the microemulsion B, centrifuging, washing, roasting to obtain particles B; mixing the particles A and the particles B, adding polyvinyl pyrrolidone, an HAuCl4 solution and the deionized water, shaking and centrifuging, adding washed and dried product, sodium dodecyl benzene sulfonate and naphthylamines into the deionized water and mixing, adding ammonium persulfate, shaking and centrifuging, dissolving the washed product into acetone, adding pre-treated netted glassy carbon, shaking, taking the product out, and drying to obtain the nano-Fe3O4-V2O5-Au-doped poly-naphthylamine film modified netted glassy carbon electrode.

Description

Technical field [0001] The invention belongs to the technical field of electrocatalytic oxygen reduction chemically modified electrodes, and particularly relates to a nano-Fe 3 O 4 -V 2 O 5 -Au-doped polynaphthylamine film modified mesh glass carbon electrode preparation process. Background technique [0002] In recent years, with the widespread application of electrochemical technology in the environmental field, especially the electro-Fenton method for treating coking wastewater and other pollution problems, how to improve the oxygen reduction catalytic performance of the cathode has become a research hotspot. Many studies have focused on modifying cathode materials. Improve its oxygen reduction catalytic performance. [0003] At present, the materials for modifying cathodes in domestic and foreign research mainly include conductive polymers and inorganic magnetic composites. Conductive polymer usually has a large π-bond conjugated structure, rigid chain, generally insoluble and...

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Problems solved by technology

However, in the current research, only one or two kinds of inorganic magnetic composites are complexed with a conductive polymer, and the conductive polymers are mostly polyaniline and its homologues, and the modified electrodes are mostly graphite and activated carbon, so many The preparation process of a composite-modified mesh glassy carbon electrode is still lacking in this aspect.