Laser-Reduced Zeolite Imidazole Framework-67 as Magnetic Absorbents for Oil Separation in Water

We reduced zeolite imidazole framework-67 by laser so as to prepare porous carbon materials embedded with cobalt nanoparticles. The composites exhibited ferromagnetic behavior. The parameters of laser reduction were optimized for oil absorption with high capacity and good reusability. This approach can open a new class of ferromagnetic porous absorbents and represent advancement toward overcoming the limitations of oil absorption.