中文摘要：

用水热法合成了类花状结构的Bi2WO6-Fe3O4磁性微球。SEM和TEM照片显示复合微球由直径约为260nm的Fe3O4颗粒镶嵌于直径为2～3μm的Bi2WO6微球体上。BET表征显示其比表面积为20．12m^3／g，具有明显的介孔结构。VSM表征显示其磁饱和强度为6．1emu／g，具有快速的磁响应性能。探讨了B12W06-Fe3O4磁性微球对甲基橙的吸附性能，表明在25℃条件下对甲基橙（20mg／L）的去除率为91．64％，吸附动力学遵循准二级动力学方程，吸附等温线符合Langmuir方程，最大饱和吸附量为20．67mg／g。

英文摘要：

The flower-like Bi2WO6-Fe3O4 microspheres were synthesized by hydrothermal method. SEM and TEM images indicated that Fe3O4 nanoparticles with a average diameter of 260 nm were successfully immobilized on the surface of Bi2WO6 microspheres with an average diameter of 2- 3 μ m. BET result revealed that the sample had a specific surface area value of 20.12 m^3/g and an obvious mesoporous structure. The magnetic saturation intensity was 6. lemu/ g according to VSM characterization, demonstrating a rapid magnetic response. The adsorption property for methyl orange（MO） of Bi2WO6-Fe3O4 microspheres was further discussed. Results declared that the removal rate of （20 mg/L） MO reached 91.64% under 25℃, the adsorption kinetics followed pseudo-second order kinetics equation, the adsorption isotherm conformed to the Langmuir equation and the maximum saturated adsorption capacity was 20.67 mg/g.