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Engineered Magnetic Metal-Organic Frameworks Show Promise for Removing Micro/Nanoplastics in Environment and Food Systems

Strategic Insights

— 1 min read

Researchers at Dalian Polytechnic University have made significant progress in developing a new material that can effectively remove micro/nanoplastics from the environment and food systems. In a study published in the Journal of Hazardous Materials, the team designed and synthesized engineered magnetic metal-organic frameworks (MOFs) that demonstrate superior adsorption performance for polystyrene, a type of microplastic. The material, FeO@CMC-MIL-101-NH, can adsorb up to 98.0% and 245.1 mg/g of polystyrene, with a maximum adsorption amount of 1923 mg/g based on the Langmuir isotherm model.

Key Takeaways:

  • Engineered magnetic metal-organic frameworks (MOFs) have been designed and synthesized to effectively remove micro/nanoplastics from the environment and food systems.
  • FeO@CMC-MIL-101-NH, a type of MOF, has demonstrated superior adsorption performance for polystyrene, a type of microplastic.
  • The material can adsorb up to 98.0% and 245.1 mg/g of polystyrene, with a maximum adsorption amount of 1923 mg/g based on the Langmuir isotherm model.
  • FeO@CMC-MIL-101-NH has also shown satisfactory adsorption performance for other types of microplastics, including polypropylene and polyethylene.
  • The material is efficient, cost-effective, and has great potential for the removal of micro/nanoplastics in environment and food systems.
  • The research has been peer-reviewed and published in the Journal of Hazardous Materials.

Statistics:

  • 98.0% adsorption of polystyrene by FeO@CMC-MIL-101-NH
  • 245.1 mg/g adsorption capacity of polystyrene by FeO@CMC-MIL-101-NH
  • 1923 mg/g maximum adsorption amount of polystyrene by FeO@CMC-MIL-101-NH based on Langmuir isotherm model
  • 89.0% efficiency after five cycles of FeO@CMC-MIL-101-NH
  • 81.0% removal of micro/nanoplastics from beverages by FeO@CMC-MIL-101-NH

Sources:

  • Engineered magnetic metal-organic frameworks for efficient and broad-spectrum adsorption of micro/nanoplastics in beverages. Journal of Hazardous Materials, 2025;495:139040. Journal of Hazardous Materials can be contacted at: Elsevier, Radarweg 29, 1043 Nx Amsterdam, Netherlands.
  • Dalian Polytechnic University, State Key Laboratory of Marine Food Processing and Safety Control, Dalian, Liaoning 116034, People's Republic of China.

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