Facile preparation of Fe3O4 nanoparticles with cetyltrimethylammonium bromide (CTAB) assistant and a study of its adsorption capacity

Abstract: Fe3O4 spheres with loose structure assembled by nanospheres with diameters around 50nm are synthesized via a facile one-pot solvothermal method. Series of Fe3O4 morphologies are obtained by controlling the concentration of cetyltrimethylammonium bromide (CTAB). The saturation magnetization of Fe3O4 nanospheres is about 87.3emu/g. Adsorption ability and mechanism of all samples are investigated. Experiments demonstrate that adsorption capacity is closely related with the double impacts of electrostatic interactions and specific surface area. [Copyright &y& Elsevier]