Çeşitli yöntemlerle magnetit nanotaneciklerin hazırlanması ve karakterizasyonu

Magnetite nanoparticles are used in various fields including iron-containing fluid, catalyst, pigments, magnetic recording media, medical diagnosis and treatment. Size of the particles and their morphology, electrical, optical and magnetic properties and limit their use. Synthesis methods determine the morphological homogeneity and size distribution of nanoparticles. Currently there are printing materials called toners that are imported for use in many printers of various brands and models. Iron-based inorganic minerals with different magnetic properties are used in these materials. The aim of this study is to prepare and characterize magnetite nanoparticles for use in printers and photocopiers. In this context, co-precipitation, thermal synthesis, sol-gel synthesis, reverse micelle synthesis, hydro-/solvo-thermal, sonochemical, microwave, and biosynthesis have been proposed. Magnetite nanoparticles were synthesized by co-precipitation and solvothermal/ hydrothermal methods. Stability of the nanoparticles stability is achieved by coating with oleic acid (OA), stearic acid (SA), sodium dodecyl sulfate (SDS), hexadecyltrimethylammonium bromide (CTAB), (3-aminopropyl)triethoxysilane (APTES), oleyl amine (OAm) and hexadecyltrimethoxysilane (HDTMS). Characterization of the prepared samples was performed by techniques such as XRD, FTIR, TGA, SEM, XPS and VSM.