Ferromagnetic bentonite adsorption material and preparation method thereof

The invention discloses a ferromagnetic bentonite adsorption material and a preparation method thereof, and belongs to the technical field of adsorption material preparation. The preparation method comprises the following steps: pretreating a bentonite raw material, removing impurities by low-speed centrifugation to obtain activated bentonite concentrate, and performing low-temperature inorganic modification on magnetized bentonite to obtain the magnetic inorganic coated nano material. The method has the advantages of simple and easily available material sources, low price, low cost, simple equipment requirements and mild reaction conditions. Organic chemical agents and highly toxic preparations are not adopted, the whole-process low-temperature process is easy to operate, cost reduction and preparation process simplification are facilitated, and meanwhile pollution to the environment can be reduced. 本发明公开了一种铁磁性膨润土吸附材料及其制备方法，属于吸附材料制备技术领域。首先对膨润土原料进行预处理，采用低速离心除杂，获得活化膨润土精矿，再进行低温无机改性磁化膨润土，获得磁性无机包覆纳米材料。本发明材料来源简单易得