In this study, we describe a novel strategy for the synthesis and characterization of single-walled nanotubes (SWCNTs) covalently attached with iron oxide nanoparticles (Fe3O4|Fe2O3|FeO). The synthesis process involves a two-step approach, first bonding SWCNTs onto a appropriate substrate and then introducing Fe3O4 nanoparticles via a hydrothermal