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| US/Fe~(3+)/H_2O_2体系超声催化降解甲基橙的研究 | |
| 引用本文： | 夏良树,王孟,李来丙,陈仲清.US/Fe~(3+)/H_2O_2体系超声催化降解甲基橙的研究[J].化学工程,2007,35(7):58-62. |
| 作者姓名： | 夏良树 王孟 李来丙 陈仲清 |
| 作者单位： | 1. 中国科学院,广州地球化学研究所,广东,广州,510640;南华大学,化学化工学院,湖南,衡阳,421001 2. 中国科学院,广州地球化学研究所,广东,广州,510640 3. 湖南工学院,高新材料研究所,湖南,衡阳,421008 |
| 摘 要： | 采用US/Fe3+/H2O2体系超声催化降解甲基橙,考察了超声波功率、Fe3+初始质量浓度、H2O2用量、甲基橙溶液的初始质量浓度及初始pH值对超声催化降解甲基橙的影响,初步探讨了其降解动力学规律。结果表明,US/Fe3+/H2O2体系能有效降解甲基橙,且超声波与Fenton试剂对甲基橙废水的降解存在强烈的协同作用;在pH=3、超声波功率500 W、Fe3+和H2O2的初始质量浓度分别为30 mg/L和150 mg/L时,对含30 mg/L的甲基橙溶液降解120 min,其去除率达到99.5%;甲基橙的超声催化降解符合一级反应动力学规律,且甲基橙的一级反应速率常数随其初始质量浓度增大而降低。 |
| 关 键 词： | US/Fe3+/H2O2体系 甲基橙 超声催化降解 |
| 文章编号： | 1005-9954（2007）07-0058-05 |
Study on ultrasonic and catalytic degradation of methyl orange by US/Fe3+/H2O2 system |
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| XIA Liang-shu,WANG Meng,LI Lai-bing,CHEN Zhong-qing.Study on ultrasonic and catalytic degradation of methyl orange by US/Fe3+/H2O2 system[J].Chemical Engineering,2007,35(7):58-62. | |
| Authors: | XIA Liang-shu WANG Meng LI Lai-bing CHEN Zhong-qing |
| Affiliation: | 1. Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, Guangdong Province, China; 2. School of Chemistry and Chemical Engineering, Nanhua University, Hengyang 421001, Hunan Province, China; 3. New-high Material Institute, Hunan Institute of Technology, Hengyang 421008, Hunan Province, China |
| Abstract: | US/Fe3 /H2O2 system was used for degradation of methyl orange in water.The influences of ultrasonic(US) power,Fe3 initial mass concentration,H2O2 mass concentration and the initial mass concentration and pH of methyl orange on degradation efficiency were investigated.The degradation kinetics was discussed.The results show that the synergistic effect on degradation of methyl orange in water by US/Fe3 /H2O2 is evident;the degradation efficiency of 30 mg/L methyl orange solution can reach 99.5% after 120 min irradiation under the conditions of pH=3.0,US power 500 W,initial mass concentration of Fe3 and H2O2 being 30 mg/L and 150 mg/L respectively.The degradation kinetics by US/Fe3 /H2O2 conforms to first-order reaction law,and the first-order dioxide rate constant of methyl orange decreases with the increase of initial mass concentration of methyl orange. |
| Keywords: | US/Fe3 /H2O2 system methyl orange ultrasonic and catalytic degradation |
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