摘要
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 panicles 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 Fe3O4 panicles. 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 Pb^2＋ from solution, the magnetic zeolite powder could be conveniently separated with magnetic separation technology.
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.
基金
Supported by National Natural Science Foundation of China(No.20476021)
Natural Science Foundation of Hebei Province(No.B2010000042)
Tianjin Natural Science Foundation(No.10JCYBJC04300)
Program for Changjiang Scholars and Innovative Research Teamin University(IRT1059)
