一步法制备四氧化三铁/蒙脱土磁性复合材料(英文)  

One-Step Method of Fabricating Fe_3O_4/Montmorillonite Magnetic Nanocomposites

作　　者：宣守虎[1] 曾涑源[2] 范美强[1] 秦来顺[1] 舒康颖[1] 

机构地区：[1]中国计量学院,浙江杭州310018 [2]聊城大学,山东聊城252059

出　　处：《稀有金属材料与工程》2010年第S2期165-168,共4页Rare Metal Materials and Engineering

摘　　要：报道了一步法制备四氧化三铁/蒙脱土磁性纳米复合材料。使用XRD,TEM,VSM对材料进行了相关测试,从测试结果发现,用水热法制备的磁性纳米复合材料具有典型的层型结构。实验结果证明四氧化三铁纳米颗粒分别存在于蒙脱土的层间和片的表面,而且该层型复合材料保持了较高的比表面积(143m2/g)。这种新型磁性层型复合材料对于重金属离子具有很好的吸附能力。Magnetic Fe3O4/Montmorillonite (Fe3O4/MMT) nanocomposites were prepared via a one-step hydrothermal method. The as-prepared nanocomposites were characterized by X-ray diffraction, transmission electron microscopy, and nitrogen adsorption analysis. Fe3O4 species in the nanocomposites existed both on the surface and in the inter-layer of the MMT component. Structural features of the nanocomposites were similar to those of the MMT host with slight difference as a result of the introduction of Fe3O4 into the clay. This magnetic nanocomposite also showed a good adsorption of heavy metal ions in water treatment.

关 键 词：四氧化三铁 蒙脱土 水处理 

分 类 号：TB383.1[一般工业技术—材料科学与工程]