Magnetic core supported ethyl acetate microdrops for organic contaminants removal from water.

Organic contaminants have increasingly become a main threat to the water environment, necessitating novel methods for removing from polluted water. In this study, a kind of magnetic ethyl acetate microdrops (Fe₃O₄@KCC-1@EA) is fabricated for this purpose The KCC-1 shell of Fe₃O₄@KCC-1 nanospheres is a layer of silica with a dendritic fibrous structure. The ethyl acetate shell of the Fe₃O₄@KCC-1@EA microdrops provides them with the properties of an organic solvent. While the magnetic core makes them magnetically manipulable. Adding Fe₃O₄@KCC-1@EA microdrops to bisphenol A-polluted water allows the contaminants to be extracted into the ethyl acetate shell. These microdrops, saturated with bisphenol A, are then easily separated from the water phase with an external magnetic field, achieving a removal rate of over 98%. Besides bisphenol A, the Fe₃O₄@KCC-1@EA microdrops could also be employed to remove other organic contaminants. This method could provide a new pathway for water purification from organic contaminants. [ABSTRACT FROM AUTHOR]