活性氧物种在环境污染物降解转化中的应用研究进展

Application of reactive oxygen species in environmental pollutants degradation and transformation

利用活性氧物种这类具有氧化能力的含氧自由基或含氧的非自由基衍生物降解环境污染物是一种绿色高效的污染控制和环境修复手段,但活性氧物种在环境污染物降解转化过程的产生和作用机制有待深入研究。本文综述了近年来活性氧物种(羟基自由基、超氧阴离子自由基、单线态氧和过氧化氢)在环境污染物去除方面的最新研究进展,介绍了几类常见的活性氧物种的化学性质、产生途径和检测方法,归纳和总结了活性氧物种在大气环境净化、有机废水处理和有害微生物杀灭等方面的应用和深层作用机制,同时对在环境污染物降解转化中活性氧物种的产生技术开发、含量定量检测和协同降解效应等方面进行了展望。

Utilizing reactive oxygen species(ROS),a class of oxygen free radicals or non-radical derivatives of oxygen with oxidizing ability to degrade environmental pollutants is one of the greenest and most effective chemical means for pollution control and environmental remediation.However,the formation and reaction mechanism of ROS in the degradation and transformation of environmental pollutants need to be further studied.This article reviews recent research progress on ROS(hydroxyl radical,superoxide anion,singlet oxygen and hydrogen peroxide)for environmental pollutants removal in recent years and introduces the chemical properties,generating pathways and detection methods of these common ROS.We also summarize the applications and profound reaction mechanism of ROS in air purification,organic wastewater treatment,bacterial inactivation and simultaneously prospected the development of the production technology,quantitative detection,and synergistic degradation effects of ROS in the degradation and transformation of environmental pollutants.