铁活化过硫酸盐降解有机污染物的研究进展

张玲玲; 丁薇

铁活化过硫酸盐降解有机污染物的研究进展

张玲玲,
丁薇

北京科技大学能源与环境工程学院

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摘要

摘要: 过硫酸盐是一种稳定的、较高氧化还原电位的、适用条件温和的氧化剂,常应用于有机污染物的降解。铁作为廉价、环境友好、自然富足的催化剂,逐渐得到广泛关注。与芬顿反应类似,过硫酸盐在铁的活化下能产生自由基,从而促进有机污染物的降解。在过硫酸盐的活化体系中,铁在均相中是以亚铁和三价铁存在的,在异相中以零价铁、矿物和复合材料的形式存在,为了提高系统的效率,还引入了光、超声以及电等外加能源进行协同。文章阐述了均相和异相体系下铁活化过硫酸盐的机理和应用,并对协同方式进行了分析。指出铁是活化过硫酸盐的主要方式之一,材料的创新、能源的协同将成为该技术新的研究方向。

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参考文献(26)

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