Abstract
Preparation of antimicrobial magnetic nanomaterials using cheap and bioactive materials as petroleum oil spill collector is the main goal of the present work. In this respect, magnetite was coated with different types of modified nonionic rosin surfactants in aqueous solution during formation magnetic nanoparticle at critical micelle concentrations of the rosin surfactants. The chemical structure of magnetic coated nanoparticles, morphology, thermal stability and crystal structure were investigated. The magnetic properties of the iron oxide nanoparticles were measured using VCM. The ability of the prepared magnetic nanoparticles powders to collected crude oil at the water surfaces were evaluated at different concentrations of nanomaterials. The antimicrobial activity against positive and negative grams bacterial strains was determined in the suspension. The prepared materials achieved good results approximately 95 % of oil collection at low concentration under magnetic field which was not reported elsewhere.