This presentation will highlight our efforts toward the construction of magnetically-active hybrid inorganic-organic network materials and investigation of their properties and potential applications. We have developed and studied both magnetic shell crosslinked knedel-like nanoparticles (MSCKs) and magnetically-active hybrid networks (MHNs), each designed as high-capacity hybrid magnetic-organic sequestrants for recovery of crude oil or perfluorooctanoic acid (PFOA). MSCKs are amphiphilic block copolymer nanoparticles that contain smaller iron oxide nanoparticles within their frameworks, whereas MHNs are complex inorganic/organic composite materials that involve the coupling of amine-functionalized iron oxide nanoparticles and pre-assembled shell crosslinked knedel-like polymeric nanoconstructs. The characteristics of each system will be described and their performance in the capture of crude oil or PFOA will be compared. Moreover, the remarkable ability for the MHNs to form stable Pickering emulsions between organic solvents and water, upon mechanical stimulus, will be highlighted as a strategy to increase the oil capture and transport, <i>via</i> manipulation as magnetically-active emulsions.

Magnetically-active hybrid inorganic-organic network materials

253rd National Meeting (2017)

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