A Novel Electrode for the Degradation of Methylene Blue in Electrochemical System: Preparation and Characterization


Article Preview

Organic wastewater pollution control was one of the focus researches for environmental workers. In this study, high active electrode was made and hydrogen peroxide production via cathodic reduction of oxygen was studied, the H2O2 generated in the optimization of research and the effect of dye wastewater degradation under the typical conditions were explored. The effects of mass ratio between graphite and PTFE, Na2SO4 concentration, cathodic potential, pH and gas flow rate on hydrogen peroxide output were investigated. The optimized operational parameters were as follows: graphite and PTFE 5:1, pH=6, Na2SO4 concentration 0.5 mol/L, oxygen flow rate 450mL/min, and cathodic potential -1.2 V (vs SCE). Hydrogen peroxide concentration could reach 66.17 mg/L after 2h at optimized condition. Meanwhile, dye removal could reach about 70% at the same time. Therefore, the use of active electrode as cathode has shown promising prospect in dye wastewater treatment.



Advanced Materials Research (Volumes 113-116)

Edited by:

Zhenyu Du and X.B Sun






Q. Z. Dai et al., "A Novel Electrode for the Degradation of Methylene Blue in Electrochemical System: Preparation and Characterization", Advanced Materials Research, Vols. 113-116, pp. 1407-1410, 2010

Online since:

June 2010




[1] Chen, G.H. Electrochemical technologies in wastewater treatment. Sep. Purif. Technol. 2004, 38, 11-41.

[2] Gandini D., Mahe E., Michaud P. A., Haenni W., Perret A., Comninellis Ch. Oxidation of carboxylic acids at boron-doped diamond electrodes for wastewater treatment. J. App. Electrochem. 2000, 30: 1345-1350.

DOI: 10.1002/chin.200021015

[3] Lizcano W H, Paganin V A, Gonzalez E R. Methanol electro-oxidation on gas diffusion electrodes prepared with Pt-Ru/C catalysts [J]. Electrochimi. Acta, 2002, 47, (22-23): 3715-3722.

DOI: 10.1016/s0013-4686(02)00341-9

[4] Kornienko G. V., Chaenko N. V., Vasil'eva I. S. etc. Indirect electrooxidation of organic substrates by hydrogen peroxide generated in an oxygen gas-diffusion electrode. Russ. J. Electrochem., 2004, 40(2): 148~152.

DOI: 10.1023/b:ruel.0000016327.07214.69

[5] Brillas E., Casado J. Aniline degradation by Electro-Fenton and peroxi-coagulation processes using a flow reactor for wastewater treatment. Chemosphere, 2002, 47: 241~248.

DOI: 10.1016/s0045-6535(01)00221-1

[6] Braun A.M., Maurette M.T., Oliveros E. Photochemical technology [M]. New York: John Wiley & Sons Ltd, 1991, 77-109.

[7] Sellers R.M. Spectrophotometric determination of hydrogen peroxide using potassium titanium (IV) oxalate [J]. Analyst, 1980, 150: 950-954.

DOI: 10.1039/an9800500950

In order to see related information, you need to Login.