| 低温高效催化降解刚果红染料的Fe/CeO2催化剂 |
| |
| 引用本文： | 袁强,江玲,李辉,杨乐夫,蔡俊修.低温高效催化降解刚果红染料的Fe/CeO2催化剂[J].厦门大学学报(自然科学版),2011,50(1):70-75. |
| |
| 作者姓名： | 袁强 江玲 李辉 杨乐夫 蔡俊修 |
| |
| 作者单位： | 1. 贵州大学化学与化工学院,贵州,贵阳,550025
2. 厦门大学化学化工学院,福建,厦门,361005 |
| |
| 基金项目： | 贵州省自然科学基金项目(20072013); 贵州大学人才基金(X060025) |
| |
| 摘 要： | 有机染料废水成为目前世界公认的主要工业污染源之一,对有机染料的降解越来越引起人们的重视.采用溶胶-凝胶法(sol-gel)和浸渍法制备掺杂Fe的催化剂Fe/CeO2,以X-射线衍射(XRD)和N2物理吸附-脱附对催化剂的结构进行了表征,并对其催化降解有机染料刚果红的性能进行了研究.结果表明,在CeO2中添加过渡金属Fe未改变CeO2晶相结构,且Fe物种在CeO2上处于高分散状态.采用催化湿式过氧化氢氧化法(CWPO)处理10 mg/L偶氮染料刚果红,在低温(5~35℃)范围内,质量分数为2.0%Fe/CeO2催化剂均能表现出高的催化活性.室温25℃时,当催化剂和氧化剂(质量分数为30%H2O2)投加量分别为0.05 g和0.02 mol/L,处理40 min后刚果红降解率可达96%.同时,催化剂重复性实验结果表明催化剂具有良好的稳定性.
|
| 关 键 词： | 催化氧化 Fe/CeO2 H2O2 刚果红 |
Fe/CeO2 Catalysts for Highly Efficient Degradation of Congo Red at Low Temperature |
| |
| YUAN Qiang,JIANG Ling,LI Hui,YANG Le-fu,CAI Jun-xiu.Fe/CeO2 Catalysts for Highly Efficient Degradation of Congo Red at Low Temperature[J].Journal of Xiamen University(Natural Science),2011,50(1):70-75. |
| |
| Authors: | YUAN Qiang JIANG Ling LI Hui YANG Le-fu CAI Jun-xiu |
| |
| Institution: | YUAN Qiang1,JIANG Ling1,LI Hui1,YANG Le-fu2,CAI Jun-xiu2 (1.School of Chemistry and Chemical Engineering,Guizhou University,Guiyang 550025,China,2.College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005,Chian) |
| |
| Abstract: | Currently,the organic dyes are the one of main industrial pollutants.The degradation of dyes has been paid increasing attention.In this paper,Fe/CeO2 catalysts were prepared by sol-gel and impregnation method and the catalytic degradation properties toward Congo red were investigated.The structures of catalysts were characterized by X-ray diffraction(XRD) and N2 adsorption-desorption.The results of characterizations show that the crystalline structure of CeO2 is unchanged by addition of transition metal Fe ... |
| |
| Keywords: | catalytic oxidation Fe/CeO2 H2O2 Congo red |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
