| 锰-稀土/Y分子筛复合电催化处理含酚模拟废水 |
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| 引用本文： | 刘咏,李妍,赵仕林,操飞,杨洪波.锰-稀土/Y分子筛复合电催化处理含酚模拟废水[J].中国环境科学,2011,31(5):740-747. |
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| 作者姓名： | 刘咏 李妍 赵仕林 操飞 杨洪波 |
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| 作者单位： | 四川师范大学化学与材料科学学院,先进功能材料四川省高校重点实验室,四川,成都,610066 |
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| 基金项目： | 国家自然科学基金资助项目，四川省教育厅自然科学基金资助项目 |
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| 摘 要： | 采用浸渍焙烧法制备了以Y分子筛为载体的Mn-RE复合催化剂,置于电解槽内形成反应床体,构建Mn-RE多相催化电解氧化体系处理人工模拟苯酚废水.考察了浸渍液中锰的质量分数、稀土元素组成和质量分数、焙烧温度、焙烧时间对电催化活性的影响,用SEM和XRD等手段对催化剂的微观结构、表面形貌进行了表征,探讨了Mn-RE/Y分子筛催化剂对含酚废水降解的电催化效果.研究表明, Mn-RE/Y分子筛催化剂的最佳制备条件是浸渍液中锰质量分数6%,铈质量分数为3%,焙烧温度为550℃,焙烧时间为5h.Y分子筛中引入Mn、Ce后没有破坏Y分子筛的晶体结构, Mn-RE/Y分子筛催化剂的表面并没有检测到稀土氧化物和锰氧化物的物相.反应过程中, Mn-RE/Y分子筛在阴极和阳极的同时催化氧化作用强化了含酚废水的降解效果.
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| 关 键 词： | 锰-稀土复合催化剂 Y分子筛 苯酚废水 电催化氧化 |
| 收稿时间： | 2010-09-15; |
Study on the treatment of the phenolic simulation wastewater by Mn-RE/Y zeolite composite heterogeneous catalytic electro-oxidation |
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| LIU Yong,LI Yan,ZHAO Shi-lin,CAO Fei,YANG Hong-bo.Study on the treatment of the phenolic simulation wastewater by Mn-RE/Y zeolite composite heterogeneous catalytic electro-oxidation[J].China Environmental Science,2011,31(5):740-747. |
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| Authors: | LIU Yong LI Yan ZHAO Shi-lin CAO Fei YANG Hong-bo |
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| Institution: | LIU Yong,LI Yan,ZHAO Shi-lin,CAO Fei,YANG Hong-bo(Key Laboratory of Advanced Functional Materials,Sichuan Province Higher Education System,College of Chemistry and Material Science,Sichuan Normal University,Chengdu 610066,China). |
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| Abstract: | Mn/rare earth composite catalyst based on the Y-type molecular sieve carrier were prepared by an impregnation-calcination method.The effects of calcination temperature,calcination time,metal ion concentration in impregnated liquid and rare-earth species on the activity of the catalysts were studied.The heterogeneous catalytic oxidation electrolysis system of Mn/rare earth composite was built by embedding the catalysts in glass fibers to develop a reaction bed for treating a simulated phenolic wastewater.The... |
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| Keywords: | manganese and rare earth composite catalyst Y-type molecular sieve phenolic wastewater electro-catalytic oxidation |
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