| 超声、紫外增强H2O2/KI降解磺胺甲基嘧啶 |
| 摘要点击 3530 全文点击 1251 投稿时间：2016-11-18 修订日期：2017-01-17 |
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| 中文关键词 磺胺甲基嘧啶 H2O2/KI 碘自由基 超声 紫外 |
| 英文关键词 sulfamerazine H2O2/KI iodine radicals ultrasonic UVA |
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| 中文摘要 |
| 实验以H2O2和KI作为分子碘（I2）的来源，研究比较了超声、紫外分别增强H2O2/KI降解磺胺甲基嘧啶（sulfamerazine，SMR）的效果、主要影响因素、分子碘的生成、主要活性物种和产物.结果表明，超声、紫外均能有效增强H2O2/KI对磺胺甲基嘧啶的降解，超声的增强效果明显；pH值对磺胺甲基嘧啶的去除率影响较大，pH为2.6~5.6，去除率随pH升高而降低；自由基抑制结果表明，碘自由基（I·和I2-·）是超声、紫外增强H2O2/KI降解磺胺甲基嘧啶的主要活性物质.HPLC/MS/MS分析检测到一碘代苯. |
| 英文摘要 |
| The degradation of Sulfamerazine(SMR) enhanced by molecular iodine under ultrasound/H2O2/KI and UVA/H2O2/KI was investigated. The main affecting parameters, iodine generation, active species and degradation products in the two systems were discussed as well. The experimental results showed that sulfamerazine degradation was effectively enhanced in both systems, and the enhancement of ultrasound was much better. The initial pH had an obvious effect on sulfamerazine removal in the range of 2.6-5.6, and the SMR removal efficiency decreased with initial pH value. Iodine radicals (I2-·, I·) were determined as the main species in ultrasound/H2O2/KI and UVA/H2O2/KI systems. HPLC/MS/MS analysis indicated that iodo-benzene was detected in both system. |
