| 引用本文: | 刘禹硕,刘元,刘惠玲.改性SnO2电极的制备及电催化性能研究[J].材料科学与工艺,2010,18(6):810-814.DOI:10.11951/j.issn.1005-0299.20100615. |
| LIU Yu-shuo,LIU Yuan,LIU Hui-ling.Preparation and studies on the electrocatalytic properties of modified SnO2 anodes[J].Materials Science and Technology,2010,18(6):810-814.DOI:10.11951/j.issn.1005-0299.20100615. |
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| 摘要: |
| 为了研究3种掺Sb、掺Ru和掺Ru、Ce钛基SnO2电极的性能,以热分解法制备了改性钛基SnO2电极.利用扫描电镜和X射线衍射分析方法表征了电极的表面形貌和晶体结构,通过加速寿命实验考察电极的使用寿命,并以邻硝基苯酚为目标有机物,考察了电极的电催化性能.实验结果表明:Ru和Ce的掺杂减小了晶体颗粒的尺寸;Ti/Ru-Ce-SnO2电极的使用寿命远远高于Ti/Sb-SnO2电极;用Ti/Sb-SnO2电极电催化氧化降解ONP时,溶液中的COD去除率是最高的(80.3%),比Ti/Ru-Ce-SnO2电极的去除率(78%)略高;Ti/Sb-SnO2电极对ONP的去除速率是最快的,同时Ti/Ru-Ce-SnO2电极对ONP的去除速率与前者相比相差不大.因此,Ti/Ru-Ce-SnO2具有较高的电催化性能和高的使用寿命,综合分析认为Ti/Ru-Ce-SnO2电极具有更好的应用前景. |
| 关键词: 改性SnO2电极 电催化氧化 邻硝基苯酚 降解 |
| DOI：10.11951/j.issn.1005-0299.20100615 |
| 分类号:X703.1 |
| 基金项目:国家自然科学基金委员会创新研究群体科学基金资助项目(50821002) |
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| Preparation and studies on the electrocatalytic properties of modified SnO2 anodes |
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LIU Yu-shuo, LIU Yuan, LIU Hui-ling
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State Key Laboratory of Urban Water Resources and Environment,Harbin Institute of Technology,Harbin 150090,China
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| Abstract: |
| To investigate the properties of the modified SnO2 anodes doped with the oxides of antimony,ruthenium and cerium,these anodes were prepared by thermal decomposition.Scanning electronic microscopy(SEM) and X-ray diffraction(XRD) were used to characterize the morphology and crystalline structure of the modified SnO2 anodes.The results indicate that the incorporation of Ru and Ce diminishs the size of crystal particles.Lifetime tests show that the service life of Ti/Ru-Ce-SnO2 is higher than that of Ti/Sb-SnO2.O-nitrophenol(ONP) was used as model substrate to investigate the electrocatalytic performance by means of electrochemical oxidation.The results indicate that the COD removal of Ti/Sb-SnO2(80.3%) is slightly higher than that of Ti/Ru-Ce-SnO2(78%).In addition,the removal rate of ONP of Ti/Ru-Ce-SnO2 is almost the same as that of Ti/Sb-SnO2.Therefore,Ti/Ru-Ce-SnO2 electrode is believed to be a promising anode with high electrocatalytic performance and long service life. |
| Key words: modified SnO2 anodes electrocatalytic oxidation p-nitrophenol,degradation |
