Metal-organic frameworks (MOFs) as efficient catalysts for electro-Fenton (EF) reactions: Current progress and prospects

As a type of coordination polymer, metal–organic frameworks (MOFs) have attracted extensive attention due to their large specific surface area, adjustable pore size and high porosity. Electro-Fenton (EF) technology is an environmentally-friendly and efficient advanced oxidation process (AOPs) degradation technology, which has also received extensive attention. Therefore, the paper systematically reviews the applications of MOFs in EF systems. Firstly, the advantages and disadvantages of homogeneous and heterogeneous EF were generalized, and the influencing factors of EF system (i.e., electrode, pH, current density, conductivity) were summarized. Secondly, different series of MOFs (i.e., zeolite imidazole framework (ZIF), materials of institute lavoisier frameworks (MIL) and universitetet i oslo (UIO)) were introduced. Then, the methods to improve the catalytic activity and water stability of MOFs were also described. Finally, the future application of MOFs in EF systems is prospected, which provides a detailed summary and foreshadowing for future research in this direction.