Preparation of Four DSAs and Comparison of Their Electro-catalytic Activity

›› 2012, Vol. 12 ›› Issue (2): 345-348.

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Preparation of Four DSAs and Comparison of Their Electro-catalytic Activity

JI Yue-fei WEI Jie WANG Dong-tian

Department of Chemical and Biological Engineering, Suzhou University of Science and Technology Department of Chemical and Biological Engineering, Suzhou University of Science and Technology College of Chemical and Biological Engineering, University of Science and Technology of Suzhou

Received:2012-01-30 Revised:2012-03-29 Online:2012-04-20 Published:2012-04-20
Contact: WEI Jie

4种DSA阳极的制备及其电催化性能比较

季跃飞魏杰王东田

苏州科技学院化学与生物工程学院苏州科技学院化学与生物工程学院苏州科技大学化学与生物工程学院

通讯作者: 魏杰

Abstract

Abstract: Four different dimensionally stable anodes (DSAs) Ti/SnO2+Sb2O3, Ti/PbO2, Ti/Fe-PbO2 and Ti/SnO2+Sb2O3/Fe-PbO2 were prepared. Their surface morphology was characterized by SEM and polarization curves were investigated in H2SO4 solution. In order to explore their electro-catalytic activity, electro-catalytic degradation experiment was carried out with phenol as model organic compound. The research results indicated that Ti/SnO2+Sb2O3/Fe-PbO2 anode had the highest catalytic activity among the four anodes. The phenol removal rate reaches 95%. The accelerated lifetime of the electrodes with interlayer was improved obviously, reaching 16 h. In addition, the electro-catalytic degradation reaction of phenol on the four anodes followed first-order reaction kinetic law.

Key words: electro-catalytic oxidation, dimensionally stable anode, phenol

摘要： 制备了Ti/SnO2+Sb2O3, Ti/PbO2, Ti/Fe-PbO2和Ti/SnO2+Sb2O3/Fe-PbO2四种形稳阳极材料，对其表面形貌进行了表征，同时测试了其在H2SO4溶液中的极化曲线. 以苯酚为目标污染物，用其进行了电催化降解实验. 结果表明，Ti/SnO2+Sb2O3/Fe-PbO2电极催化活性最好，苯酚降解率可达95%. 添加锡锑中间层后，Ti/SnO2+Sb2O3/Fe-PbO2电极寿命显著提高，可达16 h. 苯酚在4种阳极上的电催化降解反应遵循一级反应动力学规律.

关键词: 电催化氧化, 形稳阳极, 苯酚

CLC Number:

X703.1

JI Yue-fei WEI Jie WANG Dong-tian. Preparation of Four DSAs and Comparison of Their Electro-catalytic Activity[J]. , 2012, 12(2): 345-348.

季跃飞魏杰王东田. 4种DSA阳极的制备及其电催化性能比较[J]. , 2012, 12(2): 345-348.

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Preparation of Four DSAs and Comparison of Their Electro-catalytic Activity

4种DSA阳极的制备及其电催化性能比较

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