In order to separate ZSM-5 zeolite powders from solution easily,a series of magnetic ZSM-5 zeolites were prepared by hydrothermal synthesis with the addition of magnetic Fe3O4 particles during the crystalline process.The products were characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM),infrared(IR)spectrum,energy dispersive X-ray(EDX),specific surface area,magnetic susceptibility and adsorption capability.It was found that the magnetic ZSM-5 zeolites had good magnetism and the magnetic susceptibility increased with the increasing amount of Fe3O4particles.Compared with the pure ZSM-5 zeolite,the adsorption capability of magnetic ZSM-5 zeolites was acceptable.When the magnetic zeolites were used to adsorb Pb2+from solution,the magnetic zeolite powder could be conveniently separated with magnetic separation technology.
