【摘要】 介绍了用停流光谱仪研究有机污染物臭氧化快速反应动力学的基本原理,并采用英国HI-TECH科学仪器公司的SF-61DX2型双混合停流光谱仪测定了臭氧（O₃）与对硝基苯酚（PNP）的快速反应速率常数和反应级数等动力学参数。结果表明O₃与PNP的总反应级数为二级,与O₃和PNP分别成一级;当pH为2.9～7.4时,其反应速率常数为4.15×10²～2.83×10⁵m³kmol^-1s^-1。更多还原

【Abstract】 The determination technique of fast reaction kinetics between ozone and an organic pollutant by thestopped-flow spectrophotometer is briefly introduced. The fast reaction constant and reaction order of ozone（O₃） with p-nitrophenol （PNP）are determined by the HI-TECH SF-61DX2 double mixing stopped-flow spec-trophotometer. The results indicate that the ozonation reaction is totally second order, first order for both O₃ andPNP. And the reaction constant is determined to be 4.15×10²～2.83×10³ m³ kmol^-1 s^-1 when the pH valuevaries from 2.9 to 7.4.更多还原