| 微波促进含Cr(VI)-H2O2体系降解甲基橙溶液的研究 |
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| 引用本文： | 刘作华,杜军,刘仁龙,牟天明,陶长元.微波促进含Cr(VI)-H2O2体系降解甲基橙溶液的研究[J].环境工程学报,2007,1(8):35-39. |
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| 作者姓名： | 刘作华 杜军 刘仁龙 牟天明 陶长元 |
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| 作者单位： | 1.重庆大学化学化工学院，重庆 400030；2.重庆大学三峡库区生态环境教育部重点实验室，重庆 400030,1.重庆大学化学化工学院，重庆 400030,1.重庆大学化学化工学院，重庆 400030,3.重庆化医(控股)集团公司,重庆 400010,1.重庆大学化学化工学院，重庆 400030 |
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| 基金项目： | 国家创新研究群体科学基金项目(50621403)；三峡库区生态环境教育部重点实验室访问学者基金(KLVF－2006－5) |
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| 摘 要： | 研究了微波辐射下Cr(VI)－H2O2催化降解甲基橙溶液的行为，探索了微波功率、微波辐射时间、pH值、H2O2浓度、Cr(VI)等对甲基橙溶液脱色率和COD去除率的影响。研究结果表明，Cr(VI)-H2O2能形成类Fenton体系；微波辐射可提高H2O2产生羟基自由基(·OH)的效率。1000 mg/L的甲基橙溶液，在Cr(VI)浓度为10.0 mmol/L、pH值为2.5、H2O2浓度为20.0 mmol/L、微波功率为700W下加热2 min，甲基橙溶液的脱色率为99.2%，COD去除率为82.8%。
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| 关 键 词： | 微波 Cr(VI) 甲基橙 类Fenton试剂 |
| 文章编号： | 1673-9108（2007）08-0035-05 |
| 修稿时间： | 2007-04-17 |
Degradation of methyl orange solution with microwave-irradiated Cr(VI)-H2O2 system |
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| Liu Zuohu,Du Jun,Liu Renlong,Mu Tianming and Tao Changyuan.Degradation of methyl orange solution with microwave-irradiated Cr(VI)-H2O2 system[J].Techniques and Equipment for Environmental Pollution Control,2007,1(8):35-39. |
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| Authors: | Liu Zuohu Du Jun Liu Renlong Mu Tianming and Tao Changyuan |
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| Abstract: | Catalytic degradation performance of methyl orange(MO) solution in microwave-irradiated Cr(VI)-H2O2 system was studied.Factors associated with decolorization and COD removal rates,such as microwave power,microwave irradiation time,pH value,dosages of H2O2 and Cr(VI) were investigated.Results indicated that Cr(VI)-H2O2 system was a kind of Fenton-like reagent.Microwave irradiation could improve the utilization efficiency of H2O2 to produce hydroxyl.Decolorization rate and COD removal rate of 1000 mg/L MO solution were 99.2% and 82.8% respectively under the conditions including microwave power 700 W for 2 min,pH 3,10.0 mmol/L Cr(VI) and 20.0 mmol/L H2O2. |
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| Keywords: | microwave chromium(VI) methyl orange(MO) Fenton-like reagent |
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