| ZnFe0.25Al1.75O4催化剂在苯酚催化湿式氧化中的活性和稳定性 |
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| 引用本文： | 徐爱华,鲁晓阳,杨民,杜鸿章,孙承林.ZnFe0.25Al1.75O4催化剂在苯酚催化湿式氧化中的活性和稳定性[J].催化学报,2007,28(5):395-397. |
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| 作者姓名： | 徐爱华 鲁晓阳 杨民 杜鸿章 孙承林 |
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| 作者单位： | 1. 中国科学院大连化学物理研究所,辽宁大连,116023;中国科学院研究生院,北京,100049
2. 中国科学院大连化学物理研究所,辽宁大连,116023 |
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| 基金项目： | 国家高技术研究发展计划(863计划,2002AA601260). |
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| 摘 要： | 利用溶胶-凝胶法制备了ZnFe0.25Al1.75O4尖晶石复合氧化物催化剂,并将其用于苯酚催化湿式氧化反应.结果表明,这种催化剂对苯酚降解有较好的催化活性和稳定性.连续反应5次后,苯酚转化率为100%,COD去除率为88.7%.反应过程中,铁离子的溶出量先增加后减小,最终的出水金属离子浓度很低.第5次反应后的出水铁离子浓度为2.15 mg/L,锌离子浓度为1.53 mg/L.
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| 关 键 词： | 尖晶石 苯酚 催化湿式空气氧化 铁离子 溶出 |
| 文章编号： | 0253-9837（2007）050395-03 |
| 修稿时间： | 2007-01-12 |
Activity and Stability of ZnFe0.25Al1.75O4 Catalyst in Catalytic Wet Air Oxidation of Phenol |
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| XU Aihua,LU Xiaoyang,YANG Min,DU Hongzhang,SUN Chenglin.Activity and Stability of ZnFe0.25Al1.75O4 Catalyst in Catalytic Wet Air Oxidation of Phenol[J].Chinese Journal of Catalysis,2007,28(5):395-397. |
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| Authors: | XU Aihua LU Xiaoyang YANG Min DU Hongzhang SUN Chenglin |
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| Institution: | 1 Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian 116023, Liaoning, China ; 2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | The ZnFe0.25Al1.75O4 spinel type catalyst prepared by the sol-gel method was tested for catalytic wet air oxidation of phenol.High activity and stability were obtained for the catalyst.After five successive reactions,there were still 100% of phenol conversion and 88.7% of COD removal.During the phenol degradation,the returning of leached iron to the catalyst surface was observed,and as a result the amount of iron leaching in the final effluent was very low.After the fifth reaction run,the amount of iron leaching was 2.15 mg/L,and the zinc leaching was 1.53 mg/L. |
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| Keywords: | spinel phenol catalytic wet air oxidation iron ion leaching |
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