UV/Fenton及Fenton体系降解愈创木酚的机理探讨

刘　芳<sup>1</sup>; 杨艳明<sup>2</sup>; 王　昶<sup>3</sup>

刘　芳,杨艳明,王　昶.UV/Fenton及Fenton体系降解愈创木酚的机理探讨[J].中国造纸学报,2011,26(3):39-43

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UV/Fenton及Fenton体系降解愈创木酚的机理探讨

Discussion on the Mechanism of Guaiacol Degradation by UV/Fenton and Fenton Processes

DOI：10.11981/j.issn.1000-6842.2011.03.39

中文关键词: UV Fenton ·OH 愈创木酚木素

Key Words:UV Fenton ·OH guaiacol lignin

基金项目:

作者	单位
刘　芳¹	1.天津市交通建筑设计院滨海新区分院，天津，300459
杨艳明²	2.中海油田服务股份有限公司，天津，300452
王　昶³	3.天津科技大学海洋科学与技术学院，天津，300457

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中文摘要:

选择木素类模型物愈创木酚作为目标化合物，对UV/Fenton和Fenton体系降解愈创木酚的过程进行研究，结合愈创木酚紫外-可见光谱的变化、愈创木酚去除率和矿化率的比较，对UV/Fenton和Fenton体系降解愈创木酚的机理加以探讨。实验发现，UV/Fenton和Fenton体系不只是单纯的自由基反应，Fe²⁺还可以和H₂O₂生成高价铁配合物，通过配合物的电子转移使愈创木酚得到氧化。

Abstract:

This paper selected guaiacol, one model compound of lignin, as the target compound to study the degradation of guaiacol by UV/Fenton and Fenton processes. With the help of guaiacol UV-visible spectrum changes, comparison of guaiacol removal rate and mineralization rate, the degradation mechanism of guaiacol by UV/Fenton and Fenton processes treatment was discussed. The experimental results showed that UV/Fenton and Fenton processes are not simply free radical reactions. Fe²⁺ and H₂O₂ can generate high iron complexes. The guaiacol is degraded with the electron transfer of complexes.

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