| 卢燕,黄春,谢斌,何锡阳,邹立科,林肖,王艳美.水溶性金属卟啉催化过氧化氢氧化对苯二酚的动力学研究[J].分子催化,2011,(6):534-540 |
| 水溶性金属卟啉催化过氧化氢氧化对苯二酚的动力学研究 |
| Kinetics Studies on Oxidation of Hydroquinone Catalyzed by Water-soluble Metalloporphrin with Hydrogen Peroxide |
| 投稿时间：2011-11-18 修订日期：2011-12-29 |
| DOI： |
| 中文关键词: 四(p-磺酸钠苯基)卟啉 水溶性金属卟啉 H2O2 HQ氧化 动力学 |
| 英文关键词:tetra(p-sulfonate)porphyrin water-soluble metalloporphyrin hydrogen peroxide hydroquinone oxidation kinetics |
| 基金项目: |
|
| 摘要点击次数: 1737 |
| 全文下载次数: 4269 |
| 中文摘要: |
| 本文利用紫外分光光度法研究了25℃时金属卟啉Fe(TPPS)Cl和Co(TPPS)卟啉催化过氧化氢氧化对苯二酚(HQ)的动力学（其中，TPPS为四(p-磺酸钠苯基)），探讨了体系酸度、过氧化氢/催化剂摩尔比、中心金属离子对催化反应的影响，提出了金属卟啉催化氧化对苯二酚的反应历程，建立了反应的动力学模型．研究结果表明：Fe(TPPS)Cl和Co(TPPS)表现出过氧化物酶的催化氧化特性．因此，所用金属卟啉作为模拟过氧化物酶催化氧化HQ是一种有效的催化剂． |
| 英文摘要: |
| The kinetics of oxidative reaction of hydroquinone (HQ) with hydrogen peroxide catalyzed by water-soluble metalloporphyrins, Fe(TPPS)Cl and Co(TPPS) where TPPS = tetra(p-sulfonate)porphyrin, were studied by means of UV-vis spectrophotometer at 25℃. The acidity of the system, hydrogen peroxide / catalyst molar ratio and metal ions on the catalytic reaction were investigated. The oxidative mechanism of hydroquinone catalyzed by metalloporphyrin was proposed, and a kinetic model was established. The results show that Fe(TPPS)Cl and Co(TPPS) exhibit peroxidase-catalyzed oxidation characteristics. Therefore, the use of metalloporphyrin as peroxidase in the simulation process of hydroquinone oxidation is an effective catalyst. |
| HTML 查看全文 查看/发表评论 下载PDF阅读器 |
