停流技术及其在高级氧化过程研究中的应用

Stopped-Flow Technique and Its Application in the Research of Advanced Oxidation Processes

高级氧化过程研究需要如臭氧化、·OH自由基反应等快速反应的动力学信息 .停流技术可测定反应在毫秒级内完成的快速反应速率常数 ,跟踪反应历程 .本文介绍了停流技术的基本原理、研究现状和发展 。

Research of Advanced Oxidation Processes(AOPs) requires kinetic information of fast reactions related to ozone and hydroxyl free radical·OH. The stopped_flow spectrophotometric technique can be applied to measure the rate of these fast reactions at a millisecond time scale and to gain information about the reaction mechanism. The essential features of the instrument, the current state and future prospects of the stopped_flow technique, especially the application of the technique in AOPs research, are reviewed in this paper.