新型镍-锑掺杂二氧化锡电极上苯酚的降解。
Phenol degradation on novel nickel-antimony doped tin dioxide electrode.
机构信息
State Key Laboratory of Multiphase Flow, Faculty of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
出版信息
Water Sci Technol. 2010;62(9):2090-5. doi: 10.2166/wst.2010.401.
Nickel and antimony doped tin dioxide is a novel anodic material for its good performance of electrochemical ozone generation and direct electro-catalytic oxidation. Electro-catalytic oxidation of phenol on this novel nickel-antimony doped tin dioxide electrode is presented here. The morphology and composition of the electrode are characterized. The effects of applied current densities on phenol degradation rate, energy consumption and coulomb efficiency are discussed. In 0.1 M sulfuric acid, after 4 h electrolysis with current density of 25 mA cm(-1), 90% phenol is removed. And with current density of 20 mA cm(-1), the highest energy efficiency of 6.85 g kWh(-1) and the highest coulomb efficiency of 6.87 μg C(-1) are obtained. The effect of current densities on TOC removal is also discussed.
镍和锑掺杂二氧化锡是一种新型的阳极材料，因其在电化学臭氧生成和直接电催化氧化方面的优异性能而备受关注。本文介绍了在这种新型镍-锑掺杂二氧化锡电极上对苯酚的电催化氧化。对电极的形貌和组成进行了表征。讨论了电流密度对苯酚降解率、能耗和库仑效率的影响。在 0.1 M 硫酸中，电流密度为 25 mA cm(-1)时进行 4 h 电解，可去除 90%的苯酚。而在 20 mA cm(-1)的电流密度下，可获得最高的能量效率 6.85 g kWh(-1)和最高的库仑效率 6.87 μg C(-1)。还讨论了电流密度对 TOC 去除的影响。
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