Abstract
This work aims to synthesize mass production of uniform magnetite nanoparticles (up to 50 g) with a core sizes between 10 and 20 nm for environmental application. Fatty acids such as stearic, oleic and linoleic and linolenic acids were used as capping agents. The chemical structure of magnetite nanoparticles capped with fatty acids crystal sizes and morphologies revealed that magnetite nanoparticles were encapsulated into the shells of fatty acids. The magnetic properties and antimicrobial activities of the prepared magnetite nanoparticles confirmed the application of nanoparticles for environmental application as crude oil collector for oil spill using an external magnetic field.