| 酸化处理的活性碳纤维负载氧化镧催化还原NO |
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| 引用本文： | 王群敬,李彩亭,路培,李群,罗瑶,田立辉.酸化处理的活性碳纤维负载氧化镧催化还原NO[J].化工环保,2008,28(4). |
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| 作者姓名： | 王群敬 李彩亭 路培 李群 罗瑶 田立辉 |
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| 作者单位： | 湖南大学,环境科学与工程学院,湖南,长沙,410082 |
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| 摘 要： | 采用浸渍法制备了负载La2O3的经HNO3活化的活性碳纤维（La2O3／HNO3／ACF）。研究了La2O3／HNO3／ACF对NO的催化活性，研究结果表明：La2O3／HNO3／ACF的低温催化活性远低于La2O3／ACF和HNO3／ACF；随反应温度升高，La2O3／HNO3／ACF对NO的去除率显著提高。La2O3／HNO3／ACF的高温（350℃以上）催化活性很高，优于La2O3／ACF等其他催化剂，且催化活性稳定性很好。La2O3负载量影响La2O3／HNO3／ACF的催化活性，18％La2O3／HNO3／ACF的高温催化活性和活性稳定性最佳，催化活性维持在10h以上。催化剂的扫描电子显微镜和x射线衍射分析结果表明，负载的La2O3多以非晶状态存在于催化剂的表面和内部的孔隙中。
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| 关 键 词： | 活性碳纤维 负载 氧化镧 一氧化氮 催化还原 |
Catalytic Reduction of NO by La2O3 Supported on Acidified Activated Carbon Fibers |
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| Wang Qunjing,Li Caiting,Lu Pei,Li aun,Luo Yao,Tian Lihui.Catalytic Reduction of NO by La2O3 Supported on Acidified Activated Carbon Fibers[J].Environmental Protection of Chemical Industry,2008,28(4). |
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| Authors: | Wang Qunjing Li Caiting Lu Pei Li aun Luo Yao Tian Lihui |
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| Abstract: | The catalyst of La_2O_3 supported on Activated Carbon Fibers acidified by HNO_3 (La_2O_3/ HNO_3/ACF) was prepared by immersion method.The catalytic activity of La_2O_3/HNO_3/ACF to NO was studied.The results show that:The catalytic activity of La_2O_3/HNO_3/ACF is far less than that of La_2O_3/ACF and HNO_3/ACF at low temperature;With the temperature increase,the removal rate of NO by La_2O_3/HNO_3/ACF is obviously improved;The catalytic activity of La_2O_3/HNO_3/ACF is superior to that of La_2O_3/ACF and o... |
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| Keywords: | activated carbon fiber load lanthanum oxide nitrogen oxide catalytic reduction |
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