The metal-organic framework (MOF) research activities can be classified into MOF preparation, MOF processing, and MOF application. Processing MOFs into specially ordered shapes and morphologies is of great importance, since it bridges MOFs to real-life applications. Additionally, creating higher-order mesoscopic architectures with MOF particles as building blocks can introduce novel properties besides the inherent features of MOFs, thus opening a door to enhancing their performance in various applications. This thesis focused on the fabrication of MOFs into zero-dimensional and three-dimensional MOF architectures via various concepts inspired by polymerization and interfacial techniques.
• A raspberry-like MOF-polymer microsphere was prepared via dispersion polymerization. MOFs were found to be a good stabilizer and could be bound to polymer core with the help of polyvinylpyrrolidone. The prepared microsphere could be further developed into a polymer@MOF core-shell structure.
• A multilayered MOF colloidosome (MOFsome) was prepared through transient Pickering emulsion. The obtained MOFsome could be used as a stimulus-responsive carrier and as a general platform for construction of multicomponent colloidosomes.
• A porous MOF monolith was obtained using high internal phase emulsion template (HIPE). MOF particles were able to stabilize HIPE with internal phase up to 90 % of the volume. The obtained monoliths were ultralight with density as low as 12 mg/cm3.
• A flexible and porous nanocellulose aerogel with high MOF loadings was prepared through a straightforward sol-gel process, followed by freeze-drying. The hierarchical porous hybrid aerogel remained intact under compression and was demonstrated to be an ideal absorbents for water purification.
• A shapeable and versatile platform was demonstrated for in situ growth of MOF particles. The metal ion cross-linked alginate hydrogels were converted into MOF-alginate composites through a post-treatment of the hydrogels with MOF ligand solution. The macroscopic shape of the composite could be controlled and it was demonstrated to be an effective absorbent for water purification. / Dissertation / Doctor of Philosophy (PhD)
| Identifer | oai:union.ndltd.org:mcmaster.ca/oai:macsphere.mcmaster.ca:11375/20402 |
| Date | January 2016 |
| Creators | Zhu, He |
| Contributors | Zhu, Shiping, Chemical Engineering |
| Source Sets | McMaster University |
| Language | English |
| Detected Language | English |
| Type | Thesis |
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