Chinese Journal of Applied Chemistry ›› 2023, Vol. 40 ›› Issue (2): 155-168.DOI: 10.19894/j.issn.1000-0518.220259

• Review •     Next Articles

Research Progress of Metal-organic Framework MIL-88A(Fe) and Its Composites in Water Treatment

Hua-Yu WANG, Chao ZHANG, Ke-Ming CHEN, Ming GE()   

  1. School of Chemical Engineering,North China University of Science and Technology,Tangshan 063210,China
  • Received:2022-08-01 Accepted:2022-11-06 Published:2023-02-01 Online:2023-02-27
  • Contact: Ming GE
  • About author:geminggena@163.com
  • Supported by:
    the Natural Science Foundation of Hebei Province(B2019209373)

Abstract:

As an emerging material, multifunctional metal-organic framework MIL-88A(Fe) poses a potential application in water treatment. Considering the unique physical and chemical properties of MIL-88A(Fe) (i.e. porous structure, unsaturated metal sites and excellent visible light absorption ability), MIL-88A(Fe) can heterogeneously combine with other functional materials (i.e. carbon materials, inorganic semiconductor materials) to improve its adsorption and catalytic performance. This paper reviews the application of MIL-88A(Fe) and its composites as adsorbents and catalysts in water treatment. The mechanism of adsorption removal of pollutants in water by MIL-88A(Fe) and its composites (especially heavy metal ions) is summarized, and the reaction mechanism for degradation of organic pollutants in water by MIL-88A(Fe) and its composites in photocatalytic technology, Fenton-like technology, peroxydisulfate advanced oxidation technology and ozone-catalytic technology is introduced. It is pointed out that the MIL-88A(Fe)-based functional materials have problems such as narrow applicable pH range and difficulty in recycling in the process of wastewater treatment. Future research needs to optimize the preparation condition of MIL-88A(Fe) to improve the yield and ensure the regular morphology, small size and high crystallinity of MIL-88A(Fe), improve the stability of MIL-88A(Fe) by surface coating technology, and enhance the recycling performance of MIL-88A(Fe) by endowing its magnetic property. In addition, according to the structure of the target organic pollutants and water quality condition, it is necessary to reasonably adjust the degradation contribution of the free radical pathway and the non-radical pathway to the target pollutant in the MIL-88A(Fe)-based advanced oxidation process, thus achieving the best decontamination effect.

Key words: Metal-organic framework, MIL-88A(Fe), Advanced oxidation, Wastewater treatment, Mechanism

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