With the same PS/TiO_2 particles as a template, PS/TiO_2/Fe_3O_4/TiO_2 multilayer coated microspheres produced through Fe3O4 nanoparticles adsorption and hydrolysisof Tetrabutyl titanate in ethanol.

• 以膦酸化壳聚糖改性的PS/TiO_2为模板，通过Fe_3O_4纳米粒子自组装吸附和水解钛酸丁酯制备了PS/TiO_2/Fe_3O_4/TiO_2多层包覆微球。