Systematic Study of Nanoscale ZIF-8 Ionic Liquid Microemulsion Method
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초록
내용
Recently, nanoscale MOFs have been in the spotlight due to distinguishing properties against bulk counterparts, which make nMOFs widely utilized in biomedical fields. So researchers mainly focus on making particle sizes down to nanoscale with uniform size distribution. Among reported synthetic methods toward nanomaterials, an ionic liquid microemulsion (ILME) is in the limelight with following advantages: good thermal stability, grain size uniformity, easy size control, and eco-friendliness. In this work, systematic study to control grain size, morphology, and yield of ZIF-8 (Zeolitic Imidazolate Frameworks) through ILME was conducted in the new systems ‘water / surfactant (Triton X 100 or Docusate Sodium) / AmimX (A, Alkyl=E, P, B, or H / X, Halide=Cl, Br, or I)’. And each MOF synthesis result was analyzed through powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), thermal gravimetric analysis (TGA), and Brunauer-Emmett-Teller (BET).