多相催化臭氧化技术中催化剂的研究进展

Review on catalyst for the technology of heterogeneous catalysis ozonation

近年来,以产生大量自由基(.OH)为主体的高级氧化技术越来越受到人们的关注。作为高级氧化技术的一种新形式,多相催化臭氧化技术将催化剂的吸附性、催化作用和臭氧的氧化能力很好地结合起来,可大幅提高有机物的矿化度,而催化剂在该技术对不同有机物的净化过程中起到了重要的作用。介绍了催化臭氧化过程的反应机理,综述了不同催化剂在催化臭氧氧化处理水中的最新应用。

In recent years,the advanced oxidation processes（AOPs） in which the free radicals（·OH） is generated has been paid more and more attentions for its advantage on the degradation of refractory organic pollutants.As a new form of AOPs,heterogeneous catalytic ozonation could combine the oxidizing capacity of ozone with the adsorption and catalysis of adsorbent quite well,which obtains higher mineralization of organisms.Most of researches show that the catalysts play an important role in the purifying process of different organisms.The mechanisms of catalytic ozonation are introduced briefly first,and then the catalysts recently used in this process are summarized in detail.