| Ti/SnO2-Sb2O3/Fe-PbO2电极电催化氧化氨氮的研究 |
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| 引用本文： | 乐天祥,魏杰.Ti/SnO2-Sb2O3/Fe-PbO2电极电催化氧化氨氮的研究[J].苏州科技学院学报(自然科学版),2011,28(2):32-36. |
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| 作者姓名： | 乐天祥 魏杰 |
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| 作者单位： | 苏州科技学院,化学与生物工程学院,江苏,苏州,215009 |
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| 基金项目： | 江苏省环境科学与工程重点实验室开放课题，江苏省"青蓝工程"和苏州科技学院研究生创新工程资助项目 |
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| 摘 要： | 用热分解和电沉积联合的方法制备了Ti/SnO2-Sb2O3/Fe-PbO2电极,并采用SEM、ICP和阳极极化曲线对所制备的电极进行了表征。以氨氮为目标污染物,考察了该电极的电催化氧化性能。研究结果表明:Ti/SnO2+Sb2O3/Fe-PbO2电极晶粒细小、致密,具有较高的析氧电位。采用该电极电催化氧化氨氮的最佳工艺条件为:电流密度为20 mA.cm-2、板间距为1 cm、温度为30℃、溶液pH值为5和Cl-浓度为1 100 mg.L-1,经电催化降解后,氨氮的去除率可达100%。
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| 关 键 词： | 电催化氧化 氨氮 热分解 电沉积 |
Studies on electrocatalysis oxidation ammonia nitrogen by Ti/SnO2-Sb2O3/Fe-PbO2 electrode |
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| YUE Tianxiang,WEI Jie.Studies on electrocatalysis oxidation ammonia nitrogen by Ti/SnO2-Sb2O3/Fe-PbO2 electrode[J].Journal of University of Science and Technology of Suzhou,2011,28(2):32-36. |
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| Authors: | YUE Tianxiang WEI Jie |
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| Institution: | YUE Tianxiang,WEI Jie(School of Chemistry and Bioengineering,SUTS,Suzhou 215009,China) |
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| Abstract: | The Ti/SnO2-Sb2O3/Fe-PbO2 electrode prepared by thermal decomposition and electro-deposition is measured by SEM,ICP and anodic polarization curve.The electro-catalysis oxidation properties of the electrode were also studied with the target pollutant of ammonia-nitrogen.The results indicate that the electrode particle is tiny,compact and high in oxygen evolution potential.The optimum technological conditions for electro-catalysis oxidization ammonia nitrogen are: current density 20 mA·cm-2,distance of two electrodes 1cm,temperature 30 ℃,solution pH value 5 and Cl-concentration 1 100 mg·L-1.Under these conditions ammonia nitrogen removal rate can reach 100%. |
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| Keywords: | electrocatalytic oxidization ammonia-nitrogen thermal decomposition electro-deposition |
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