MINERALISATION OF METHYL ORANGE BY ELECTRO-FENTON PROCESS USING A POLYPYRROLE/OXIT COMPOSITE CATHODE

Nguyễn Thị Lê Hiền, Hoàng Thị Mỹ Hạnh

Abstract


SUMMARY

To promote treatment efficiency, an efficient undivided electrochemical system using a Ppy (Cu1,5Mn1,5O4) composite film on graphite cathode with high production rate of hydrogen peroxide was applied to the electro-Fenton oxidation of a model azo dye, methyl orange (MO). The decrease of MO concentration and treatment efficiency during the electro-Fenton process was investigated by UV-Vis spectra and COD analyses. The results obtained confirme that using the cathode of PPy(Cu1,5Mn1,5O4) allowe treating MO wiht very high efficiency. A solution of 1,53mM MO could be mineralized nearly totally by a electrical charge of 0.08 A.h with a very high current yield.




DOI: https://doi.org/10.15625/0866-708X/48/1/1092 Display counter: Abstract : 53 views. PDF (Tiếng Việt) : 156 views.

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Published by Vietnam Academy of Science and Technology