Investigation of MOFs and Activated Carbon Co-Filler Mixed-Matrix Membranes
| Autor: | Cheng-Chieh Lai, 賴正傑 |
|---|---|
| Rok vydání: | 2017 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 105 Mixed-matrix membranes (MMMs), a relatively new class of such materials, are produced by the incorporation of organic or inorganic fillers, such as zeolites, activated carbon, and metal-organic frameworks (MOFs) into polymeric membrane materials. In this work, we choose three kind of fillers, activated carbon, MOFs: ZIF-8, NH2-MIL-53(Al), and created co-filler polysulfone-based MMMs with combinations of two fillers blended together. We investigated: a) filler distribution, b) interaction and connectivity of fillers in the polymer matrix, and c) interaction between different fillers. The above phenomenon were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and differential scanning calorimetry (DSC). From the result adding ZIF-8 and activated carbon can increase the synergistic effect of between different fillers resulting in fillers are uniformly dispersion. In XRD patterns, the main peaks of co-filler MMMs synthesized using activated carbon and MOFs displace to higher angles indication some deformation in MOFs crystal lattices which could be attributed to the interaction with the activated carbon. The MMMs doped with both NH2-MIL-53(Al) and activated carbon almost had a higher Tg than that doped with single component showing the synergistic effect between NH2-MIL-53(Al) and activated carbon existed in MMMs. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
| Externí odkaz: |
|