中文摘要：

Fenton降解对硝基苯酚（PNP）过程中,Fe2＋经历一个快速氧化后快速还原,最后在高浓度水平上保持稳定的变化过程。通过分析中间产物的变化过程,发现有机中间产物氢醌和苯醌构成一对氧化还原体系催化Fe3＋向Fe2＋的转化,本研究从Fe^2＋/Fe^3＋转化机制的角度进一步明确了Fenton降解PNP的机理。

英文摘要：

During the process of Fenton＇ s degradation of p-nitrophenol （PNP） , the concentration of fer- rous ion was kept to be a high level following a rapid oxidation and reduction. Intermediates play an important effect on redox of Ferrous and Ferric. Intermediates hydroquinone and benzoquinone form a redox system, con- vert ferric to ferrous irons. Through analyzing the changes of intermediates during the Fenton＇ s oxidation, it was found that intermediates benzoquinone and hydroquinone play an important role in the catalytic reduction of ferric ion. This study further elucidates the Fenton＇ s oxidation mechanism of p-nitorphenol from the perspective of transformation between ferric and ferrous ions.