藻类有机物光敏化效应及其降解水中新污染物的研究进展

Photosensitization of Algal organic matters(AOM)to degrade emerging contaminants:A review

新污染物(又称新兴污染物)在水环境中频繁检出,引起全世界的广泛关注,如何去除水域中广泛分布的痕量水平新污染物,成为当前亟需解决的问题.藻类分泌的有机物被光照激发后能产生活性物质降解水中的污染物,同时藻类具有固碳减排作用,因此微藻光敏化被认为是一种前景广阔的技术.本文针对藻类有机物光敏化效应着重综述了藻类有机物的光敏结构特征、光敏化效能及藻类有机物光降解污染物的机制,并总结了影响藻类光敏化的因素,对后续发展藻光敏化技术提供借鉴参考.

New contaminants(also known as emerging contaminants)are frequently detected in water,which has aroused the concern of researchers worldwide.How to remove the trace levels of new pollutants widely distributed in water has become an urgent problem to be solved.The organic matter secreted by algae can be stimulated by light to produce the reactive species which can degrade pollutants in water.Meanwhile,algae have the role of carbon fixation and emission reduction.Therefore,microalgal photosensitization is considered to be a promising technology.In this paper,the photosensitive structural characteristics,the photosensitization efficiency of algal organic matter,and the photodegradation mechanism of pollutants were reviewed in view of the photosensitization effects of algal organic matter.In addition,the factors affecting algal photosensitization were also summarized,in order to provide references for the subsequent development of algal photosensitization technology.