Fabrication of Magnetic Controlled Pickering Emulsion Microreactors with High Catalytic Activities
발표자
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초록
내용
This study presents a novel magnetic controlled recyclable colloid surfactant system, which exhibits catalytic activity at the interfaces of Pickering emulsion microreactors. For this, iron oxide nanoplatelets (IOPLs) were synthesized by reverse precipitation of a ferrous ion. The synthesized IOPLs were easily washed by using a magnet, without the need for complex methods like centrifugation. Subsequently, the surface of IOPLs were coated with silica using TEOS as a precursor to prevent aggregation of IOPLs. The platelet geometry of IOPL was confirmed by TEM analysis before and after silica coating. Next, the hydroxyl groups on the surface of the IOPLSi were then modified with amine groups through silane reaction to enable the formation of additional metal growth points. Finally, metal particles were grown onto the surface of IOPLSi, aiming to develop novel microreactor system which contains products within the droplet after extract with magnet.