草酸在Ti/IrO2-Ta2O5阳极圆柱形电解槽中的电催化氧化降解动力学

苏静; 林海波; 徐红; 黄卫民; 何亚鹏

doi:10.61558/2993-074X.2114

电化学 >

2013 , Vol. 19 >Issue 4: 293 - 299

DOI: https://doi.org/10.61558/2993-074X.2114

环境电化学近期研究专辑（吉林大学林海波教授主编）

草酸在Ti/IrO₂-Ta₂O₅阳极圆柱形电解槽中的电催化氧化降解动力学

苏静 ,
林海波 ,
徐红 ,
黄卫民 ,
何亚鹏

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1.吉林大学化学学院，吉林长春410083；2.广西大学化学化工学院，广西南宁530004；3.江苏法尔胜泓昇集团有限公司，江苏江阴214400

收稿日期: 2012-12-25

修回日期: 2013-03-19

网络出版日期: 2013-03-24

基金资助

国家自然科学基金项目(No. 21273097)和高等学校博士学科点专项科研基金项目(No. 20120061110015)资助

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Electrocatalytic Oxidation Degradation Kinetics of Oxalic Acid in a Cylindrical Electrochemical Reactor with Ti/IrO₂-Ta₂O₅ Anode

SU Jing ,
LIN Hai-Bo ,
XU Hong ,
HUANG Wei-Min ,
HE Ya-Peng

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1. College of Chemistry, Jilin University, Changchun130021, China; 2. School of Chemistry and Chemical Engineering, Guangxi University, Nanning530004, China; 3. Jiangsu Fasten Group LTD.CO., Jiangyin214400, Jiangsu, China

Received date: 2012-12-25

Revised date: 2013-03-19

Online published: 2013-03-24

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摘要

从电催化氧化降解有机污染物的机理出发，研究了草酸在Ti/IrO2-Ta2O5阳极圆柱形电解槽中的电催化氧化过程，建立了描述整个降解过程的瞬时电流效率与溶液本体有机物浓度的关系式. 通过实验对模型进行了验证，实验结果与模型计算结果基本一致，并讨论了误差产生的原因.

关键词： 电催化氧化; Ti/IrO₂-TaO₅阳极; 草酸; 理论模型

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苏静 , 林海波 , 徐红 , 黄卫民 , 何亚鹏 . 草酸在Ti/IrO₂-Ta₂O₅阳极圆柱形电解槽中的电催化氧化降解动力学[J]. 电化学, 2013 , 19(4) : 293 -299 . DOI: 10.61558/2993-074X.2114

Abstract

The electrocatalytic oxidation degradation kinetics of oxalic acid in a cylindrical electrochemical reactor with Ti/IrO₂-Ta₂O₅ as an anode was studied. The relation between instantaneous current efficiency and organic concentration in bulk was established based on the two paths for direct electrochemical oxidations, and the theoretical model was verified by experiments. The experimental resultswere reasonably consistent with the established kinetic model. Furthermore, the competition between the two paths was explored with the modelparameter analysis.

Key words： electrochemical oxidation; Ti/IrO₂-Ta₂O₅ ; anode; oxalic acid; theoretical model

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