| 金属氧化物负载γ-Al_2O_3粒子电极对酸性橙Ⅱ的电催化氧化研究 |
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| 引用本文： | 乔启成,石健,赵勤,李亚,金洁蓉.金属氧化物负载γ-Al_2O_3粒子电极对酸性橙Ⅱ的电催化氧化研究[J].环境工程,2017,35(7):86-90. |
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| 作者姓名： | 乔启成 石健 赵勤 李亚 金洁蓉 |
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| 作者单位： | 1. 南通科技职业学院环境与生物工程学院,江苏南通226007;南通市固体废弃物资源化利用重点实验室,江苏南通226007;2. 南通大学化工学院,江苏南通,226007 |
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| 基金项目： | 国家自然科学基金项目，江苏省自然科学基金青年基金项目，江苏省333高层次人才培养工程资助项目，南通市科技计划项目，江苏省高校“青蓝工程”资助项目 |
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| 摘 要： | 以γ-Al_2O_3作为载体,采用浸渍热分解法制备了Sn、Mn、Cu、Pb单组分氧化物和Sn-Ce-Sb复合氧化物粒子电极。通过对酸性橙II(AOII)的降解实验,以及采用重复试验和扫描电镜(SEM)、紫外光谱扫描等方法,探讨了粒子电极材料的性能。研究结果表明:Sn/γ-Al_2O_3相比于Mn/γ-Al_2O_3、Cu/γ-Al_2O_3、Pb/γ-Al_2O_3等单组分氧化物粒子电极表现出了更好的电催化活性和稳定性。掺杂Ce、Sb后电极表面晶体粒径细小且分布均匀,有利于提高Sn/γ-Al_2O_3粒子电极的性能。电流密度为20 m A/cm2,曝气量0.5 L/min反应条件下,反应3 h后Sn-Ce-Sb/γ-Al_2O_3粒子电极对AOII的去除率为100%,TOC的去除率达84.2%,重复使用5次后TOC去除率仍保持在80%以上。表明Sn-Ce-Sb/γ-Al_2O_3粒子电极具有较好的应用前景。
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| 关 键 词： | 粒子电极 γ-Al2O3 酸性橙Ⅱ 电催化氧化 |
ELECTRO-CATALYTIC OXIDATION OF ACID ORANGE Ⅱ BY MODIFIED γ-Al2O3 PARTICLE ELECTRODES WITH METALLIC OXIDES |
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| QIAO Qi-cheng,SHI Jian,ZHAO Qin,LI Ya,JIN Jie-rong.ELECTRO-CATALYTIC OXIDATION OF ACID ORANGE Ⅱ BY MODIFIED γ-Al2O3 PARTICLE ELECTRODES WITH METALLIC OXIDES[J].Environmental Engineering,2017,35(7):86-90. |
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| Authors: | QIAO Qi-cheng SHI Jian ZHAO Qin LI Ya JIN Jie-rong |
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| Abstract: | Particle electrodes with different active single metallic oxides,i.e.Cu,Mn,Pb,Sn and Sn-Ce-Sb complex metal oxides supported over γ-Al2O3 were prepared by incipient wetness impregnation.The properties of the particle electrodes were investigated by using acid orange Ⅱ (AO Ⅱ) degradation,repeated test,scanning electron microscopy (SEM) and UV-Vis tests.The results showed that,Sn/γ-Al2O3 had excellent electro-catalytic activity and stability for AO Ⅱ treatment compared with the other single metallic oxides.And doping with Ce and Sb could improve the catalytic activity and stability of Sn/γ-Al2O3,which was covered with finer and more crystal particles.Under current density of 20 mA/cm2 and aeration quantity of 0.5 L/min,the conversion rate and total organic carbon (TOC) removal efficiency for A OⅡ in three hours reached 100％ and 84.2％,respectively.TOC removal efficiency could even keep over 80％ after repeated tests for five times,which indicated that Sn-Ce-Sb/γ-Al2O3 particle electrodes prepared in this research had superior application prospect. |
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| Keywords: | particle electrode γ-Al2O3 acid orange Ⅱ (AOⅡ) electro-catalytic oxidation |
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