以凹凸棒黏土（ATP）为原料，Fe（NO₃）₃·9H₂O为铁源，通过溶剂热合成法制备了Fe₃O₄纳米粒子/凹凸棒土可磁分离复合材料（MATP），并通过XRD、FE-SEM、TEM、XPS、比表面/孔隙度分析仪及VSM对其进行表征。结果表明，MATP由平均直径约为11 nm的Fe₃O₄纳米粒子均匀负载于ATP表面而形成；MATP保持了黏土的纳米棒状和多孔结构，比表面积为180.98 m²/g，平均孔径为17.05 nm；MATP具有超顺磁性，饱和磁强度为13.44 emu/g，该特性有助于复合黏土材料从体系中分离及回收再利用。

The magnetically separable composite Fe₃O₄ nanoparticles/attapulgite (MATP) is prepared by solvothermal method using Fe(NO₃)₃·9H₂O as iron source and attapulgite (ATP) as starting material.The prepared MATP is characterized by XRD,FE-SEM,TEM,XPS,specific surface area/pore size analyzer and VSM.The results show that MATP is formed through the Fe₃O₄ nanoparticles with an average diameter of 11 nm dispersing quite uniformly over the surface of ATP.Meanwhile,MATP retains the nanorod and porous structure of clay,and has a specific surface area and average pore diameter of 180.98 m²·g^-1 and 17.05 nm,respectively.Further study demonstrates that MATP is of superparamagnetism with a saturated magnetization of 13.44 emu·g^-1,which helps composite clay materials to be separated from system as well as be recovered for recycle.