A magnetic-nanometer titania dioxide/ferriferous oxide(TiO-2/Fe-3O-4) composite was prepared by microemulsion system.

• 采用油酸/正丁醇/NaOH溶液制备了Fe3O4负载纳米TiO2.；用微乳体系制备出纳米二氧化钛前驱体；然后由表面活性剂稳定和保护的纳米粒子在氢键吸附等作用力下包覆于Fe3O4载体的表面