Electrochemical behavior of PbO2 electrode modified by AEO for the degradation of methyl orange

被引：0

作者：

Fan, Ying-Ying ^{[1
,2
]}

Chen, Zhen ^{[1
]}

Li, Jia-Ying ^{[1
]}

Fu, Guo-Bing ^{[1
]}

Lin, Qiang ^{[2
]}

机构：

[1] Faculty of Science, Kunming University of Science and Technology

[2] Faculty of Environmental Science and Engineering, Kunming University of Science and Technology

来源：

Cailiao Gongcheng/Journal of Materials Engineering | 2014年 / 07期

关键词：

Electrocatalytic degradation; Fatty alcohol ethoxylate(AEO); Methyl orange;

D O I：

10.11868/j.issn.1001-4381.2014.07.003

中图分类号：

学科分类号：

摘要：

A set of PbO2 electrode modified by fatty alcohol ethoxylate (AEO) were prepared on stainless steel substrate by means of anodic oxidation. The surface morphology and phase compositions of the modified electrodes were measured by SEM and XRD respectively. Electrochemical properties of modified electrode were analyzed by steady state polarization method and cyclic voltammetry in simulated methyl orange wastewater, and the electrocatalytic degradation experiment was carried under simulated wastewater conditions with 10 mg·L-1 methyl orange. It is found that the modified electrode has smoother and denser surface compared with pure PbO2 electrode. And the modified electrode shows higher oxygen evolution potential and higher oxidation peak, which is conducive to the degradation of organic pollutants. The results of degradation experiments indicate that the modified electrode gets better electrocatalytic activity than the pure PbO2 electrodes and graphite electrodes.

引用

页码：10 / 15

页数：5

共 18 条

[1]

Muthukumar M., Sargunamani D., Selvakumar N., Et al., Optimisation of ozone treatment for colour and COD removal of acid dye effluent using central composite design experiment, Dyes Pigments, 63, 2, pp. 127-134, (2004)

[2]

Meric S., Kaptan D., Olmez T., Color and COD removal from wastewater containing reactive black 5 using Fenton's oxidation process, Chemosphere, 54, 3, pp. 435-441, (2004)

[3]

Zhang Y.-X., Ji X.-T., Zhang Z.-H., Et al., A study on degradation of crystal violet under microwave radiation with a catalyst activated charcoal modified by hydrogen peroxide solution, Dyestuffs and Coloration, 48, 4, pp. 47-51, (2011)

[4]

Panizza M., Cerisola G., Removal of colour and COD from wastewater containing acid blue 22 by electrochemical oxidation, Journal of Hazardous Materials, 153, 1-2, pp. 83-88, (2008)

[5]

Zhou M.-H., Sarkka H., Sillanpaa M., A comparative experimental study on methyl orange degradation by electrochemical oxidation on BDD and MMO electrodes, Separation and Purification Technology, 78, 3, pp. 290-297, (2011)

[6]

Tahar N.B., Savall A., Electrochemical degradation of phenol in aqueous solution on bismuth doped lead dioxide: A comparison of the activities of various electrode formulations, Applied Electrochemistry, 29, pp. 277-283, (1999)

[7]

Zhao G.-H., Zhang Y.-G., Lei Y.-Z., Et al., Fabrication and electrochemical treatment application of a novel lead dioxide anode with superhydrophobic surfaces, high oxygen evolution potential, and oxidation capability, Environmental Science Technology, 44, 5, pp. 1754-1759, (2010)

[8]

Yu F., Ma X.-J., Wu Z.-C., Electrochemical treatment of organic wastewater containing salt, Technology of Water Treatment, 36, 12, pp. 6-10, (2010)

[9]

Wang Y., Shen Z.-Y., Li Y., Et al., Electrochemical properties of the erbium-chitosan-fluorine-modified PbO<sub>2</sub> electrode for the degradation of 2, 4-dichlorophenol in aqueous solution, Chemosphere, 79, 10, pp. 987-996, (2010)

[10]

Zhou M.-H., Dai Q.-Z., Lei L.-C., Et al., Long life modified lead dioxide anode for organic wastewater treatment: electrochemical characteristics and degradation mechanism, Environmental Science Technology, 39, 1, pp. 363-370, (2005)

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