Abstract:

As an advanced oxidation process (AOP), heterogeneous Fenton oxidation can effectively solve the problems of traditional Fenton technology, such as narrow applicable pH range, easy to produce iron sludge, and difficult to recover catalyst, but its reaction activity is limited by the catalyst material. This paper introduces the application of MOFs and its derivatives in heterogeneous Fenton technology in recent years. The advantages of MOFs and their derivatives, such as large specific surface area, abundant active sites, and easy structural control, which could improve the bottlenecks of the heterogeneous Fenton technology, such as insufficient active sites, low Fe²⁺/Fe³⁺ cycle efficiency, and poor mass transfer efficiency, were analyzed. This work summarizes the research progress on modifying MOFs to obtain high activity catalysts, and points out the shortcomings of the current application of MOFs as catalyst materials. In the future, MOFs catalyst researches should focus on modification design for high activity and their commercial application.

Key words: metal organic frameworks, heterogeneous Fenton reaction, catalyst, design, oxidation

摘要：

非均相Fenton氧化技术作为高级氧化工艺（AOP）的一种，能够有效解决传统Fenton技术适用pH范围窄、易产生铁污泥、催化剂难回收等问题，但其反应活性受催化剂材料限制。本文介绍了近几年金属有机骨架（MOFs）及其衍生物在非均相Fenton技术中的应用成果，分析了MOFs及其衍生物比表面积大、活性位点丰富、易于结构调控等优点在改善非均相Fenton技术活性位点不足、Fe²⁺/Fe³⁺循环效率低、传质效率差等问题时所发挥的作用，综述了对MOFs进行改性设计以获得高活性催化剂的研究进展，总结了当前应用MOFs作为催化剂材料仍存在的缺陷。未来MOFs催化剂的研究应集中在高活性改性设计及商业化应用这两方面。

关键词: 金属有机骨架, 非均相Fenton反应, 催化剂, 设计, 氧化