One step synthesis of magnetic composite Fe3O4/Cu-BTC/GO

Magnetic composites Fe3O4/Cu-BTC and Fe3O4/Cu-BTC/GO were one-step synthesized and characterized. It was found that GO can help Fe3O4 encapsulated more homogeneously. Fe3O4/Cu-BTC particles were “sea-island” structure, while Fe3O4/Cu-BTC/GO particles were uniform spherical structure with a bigger size. It can be explained by the excellent hydrophilicity of GO. IBU loading and IBU release of different particles were compared. Fe3O4/Cu-BTC/GO was found to have larger IBU loading and better IBU release. It was concluded that addition of GO changed the adsorption mechanic for IBU, which strengthened the IBU loading and led to the lower IBU release.