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Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes
Published on: August 16, 2018
Modified-MOF-808-Loaded Polyacrylonitrile Membrane for Highly Efficient, Simultaneous Emulsion Separation and Heavy
Xinyu Chen1, Dongyun Chen1, Najun Li1
1College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China.
Abstract:
Oily wastewater, often containing heavy metal ions, is a common source of water pollution. In this study, a modified-MOF-loaded polyacrylonitrile membrane was designed and prepared via solvothermal reaction and electrospinning to simultaneously separate oil-in-water emulsions and adsorb heavy metal ions. The membrane shows superhydrophilicity and superoleophilicity in air and underwater superoleophobicity, which enables the membrane to efficiently separate various oil-in-water emulsions. The strong adsorption capacity of MOF-808 allows this membrane to adsorb heavy metal ions at various concentrations in a short time. The separation efficiency reached 99.97%, and the highest removal efficiency of heavy metal ions reached 97.7%. Additionally, the membrane demonstrated excellent recyclability and corrosion resistance. Overall, the membrane is highly efficient in treating wastewater, and it has great potential for practical applications.
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