MAGNETITE IN AQUEOUS MEDIUM: COATING ITS SURFACE AND SURFACE COATED WITH IT

摘要

Nanoparticles form in hydrolysis using either diluted or concentrated solutions (Weimarn rule). Particle surface must be coated by electrostatic, steric or combined stabilization layers to prevent coagulation. Sticking magnetite to solid support hinders aggregation, too. Novel nanocomposites can be prepared by heterocoagulation and enhanced precipitation of magnetite on montmorillonite lamellae.