不同介质中多环芳烃光降解及与生物耦合降解研究现状

Research advance in photodegradation and photoactive-biological oxidation of polycyclic aromatic hydrocarbons(PAHs) in different media

多环芳烃(PAHs)是环境中广泛存在的一类有机污染物。它的降解一直是人们关注的课题。光降解就是多环芳烃降解的一种重要形式。对在气相、液相和固相不同介质中的PAHs光降解研究进行了综合论述,重点对PAHs在液相介质的降解速率及影响因素、中间产物及降解机制和反应动力学进行了深入探讨,并介绍了光-生物耦合降解多环芳烃的研究进展。建立系统而有效的PAHs光降解研究技术与方法,是目前当务之急。进一步完善PAHs光降解研究的技术与方法,可更准确地研究PAHs光降解机制及影响因素。

Polycyclic aromatic hydrocarbons(PAHs) are the ubiquitous organic pollutants in the environment,and their degradation has been of public concern.Among the degradation ways of these pollutants in the environment,photodegradation is the important one.We summarized the research advance in the photodegradation of PAHs in gas,liquid,and solid phases,with the focus on the photodegradation rate in liquid media,its affecting factors,intermediates,mechanisms and dynamics,and photoactive-biological oxidation.At prese...